Module 11 Personal Finance

Chapter 13

The Debt funds (Part 3)


13.1 – Debt jargons

As we enter the 27th day of the nationwide lockdown, I hope you and your loved ones are staying home, staying safe. The number of COVID19 cases in India has crossed 17,000 with Maharashtra topping the charts with over 3,500 cases. I hope all of this ends soon and we can all get back to our normal lives, until then the only mantra is ‘social distancing’, I hope you are following this diligently.

I think many people across the country are using the lockdown opportunity to learn something new and educated themselves. The traffic on Varsity has shot up quite a bit, here is the pageview snapshot from Google Analytics –

Along with the pageview,  the number of queries pouring in has also shot up. We spend several hours every day to answer your questions.

So if you find the new chapter update a bit slow, then please do understand its because of the increased load 🙂

In the previous chapter, we introduced a term called ‘Macaulay Duration’. If you recollect, Macaulay duration measure in years, the time required for the bondholder to recover the price paid for the bond by the bond’s cash flow. We did not discuss the math behind Macaulay duration because that’s outside the scope, but as I hinted in the previous chapter, the next module is on fixed income security (mini-series) where I’ll try and take this up in detail.

However, while we cruise along, there are few bond relationships that you need to know –

  • The yield of a bond and the price of the bond are inversely proportional. If the price of the bond increases, the yield of the bond decreases and vice versa
  • Interest rates and bond price are inversely proportional. If the interest rates increase, the bond price reduces and vice versa.

While we are at it, let me introduce another term – ‘ Modified Duration’, of the bond.

The modified duration (measured in years) of a bond is essentially the sensitivity of the bond’s price to the change in interest rate. So if a bond has a modified duration of 3.2 years, then –

  • A 1% increase in interest rate decreases the bond’s price by 3.2%. A 1.5% increase in the interest rate, lower the bond’s price by 4.8%
  • A 1% decrease in interest rate increases the bond’s price by 3.2%. A 1.5% decrease in bond price, increases the bond’s price by 4.8%

We can generalize this – Higher duration funds have a higher sensitivity to interest rate changes. So a 1% change in interest rate reduced the price of a longer duration fund in a greater magnitude compared to a low duration fund and vice versa.

In the context of a mutual debt fund, the modified duration is at an aggregate portfolio level. In the example above, say for a 1.5% increase in the interest rate, the debt fund’s NAV is likely to decrease by 4.8%. I hope you get the drift.

As a debt mutual fund investor, you are in the right spot if you are aware of the few points we have discussed so far. Along with these few points, as a bondholder or a debt mutual fund holder, you need to be aware that the mutual fund you are holding is susceptible to –

  • Credit risk – The risk that the bond held by the debt fund can get downgraded
  • Default risk – The risk that the bond issuer defaults on a coupon or principal repayment

Of course, now you also know that the bond price has an interest rate risk, but at this point, let us just assume the fund manager can hedge the interest rate risk.

Anyway, we will get back to the good old debt mutual funds. In this chapter, we will continue our discussion and take a few more debt (sub) categories. We will start the conversation with the low duration, money market, and short-duration funds.

13.2 – Low duration and Money Market

We looked at the ultra-short duration bond fund in the previous chapter. The defining criterion for the ultra-short duration fund was the Macaulay duration of the portfolio. As per SEBI’s classification, at the aggregate portfolio level, the Macaulay duration of the ultra short term duration fund has to vary between three to six months.

Next up is the low duration fund. The low duration fund is just like the ultra-short duration, only that the low duration fund, the  Macaulay duration at the aggregate portfolio level varies between six to twelve months.

The credit risk of the low duration fund is similar to the ultra-short duration fund. Hence it is imperative for the investors to glance through the asset quality (paper quality) of the fund.

Have a look at the portfolio of the IDFC AMC’s low duration fund –

As you can see, IDFC has 100% of its portfolio invested across various AAA papers. However, just because the fund has only AAA papers, does not imply zero credit risk. Remember, we discussed the Vodafone case in the previous chapter.

While the credit risk exists, the interest rate risk for the low duration fund is low. Have a look at the modified duration of IDFC’s Low duration fund (published in the fund’s factsheet) –

The modified duration is 289 days. I can convert this to years by dividing this by 360 –

= 289/360

= 0.802

This means to say for every 1% increase or decrease in the interest rate, and the NAV is likely to decrease/increase by 0.802%, which as you can imagine is not much.

By the way, not all funds report modified duration in terms of the number of days. Modified duration is expressed in terms of years.

For example, the Nippon India low duration fund expresses the modified duration in years, which is 0.94 yrs.

So when the fund expresses in years, you need not divide by 360. Instead, you can use the number directly.

While we are at it, which of the two low duration funds do you think is risky in terms of modified duration?

IDFC’s Low duration Fund with a modified duration of 0.802 or Nippon India’s low duration fund with a modified duration of 0.94?

Here is a task for you – why do you think Nippon India’s low duration fund has a higher modified duration? Can you look into their portfolio (as of April 2020) and get your answer?

If you can answer these questions with ease, then we are headed on the right track 🙂

Lastly, who should look at investing in a low duration fund? This is best suited under situations where you want to park your money for a short duration and utilize the funds towards a specific goal at a later point.

Next up is the money market fund.

The money market fund is somewhat similar to the low duration fund. Here is SEBI’s classification of the money market fund –

As you can see, the maturity is capped to one year, similar to that of low duration fund; the only difference is in terms of the portfolio constituents.

A low duration fund can invest in both money market instruments and bonds but ensure at the aggregate portfolio level the duration is between 6-12 months. The money market fund, however, can invest only in money market instruments. The money market instruments usually consist –

  • ‘Commercial Papers’ or CPs, issued by companies. CPs are unsecured
  • ‘Certificate of Deposits’ or CDs. Banks issue CDs to entities depositing money
  • T-Bills, issued by the Government, carries a sovereign guarantee.

So just to summarize, the fund manager of a low duration fund can invest in CPs, CDs, and perhaps even in a bond with two years maturity. However, a money market fund manager can only invest in CDs and CPs.

Let me ask you two question –

  • What is the risk of investing in a money market fund?
  • What do you think will be the modified duration of a money market fund? Will it be 1, greater than one or less than 1.

Do pause here, think about it, try to answer yourself.

Have a look at the factsheet of UTI’s Money market fund –

You will find the answers for both the questions here.

  • The money market fund is exposed to credit risk. As you can see, 9.39% of the portfolio is invested in a single company’s CP or CD. Of course, the company’s paper enjoys a high rating, but I want you to remember the fact that these ratings can change. So yeah, credit risk exists in a money market fund.
  • As you may have guessed, the modified duration will be under one year for a money market fund, which implies that the interest rate risk for these funds is low.

Investment philosophy in the money market fund is similar to the low duration fund. In fact, many investors often choose between low duration and the money market fund.

13.3 – Short Duration and Medium Duration funds

Next up is the short duration fund. Let’s start straight with SEBI’s definition –

The Macaulay’s duration of the short duration fund has to range between 1 and 3 years. After reading the SEBI definition, what is the first thing that comes to your mind?

Well, I hope you think about it from a risk perspective. With an increase in the duration, the modified duration also increases – which means the risk associated with changes in interest rate is higher with a short duration fund (and the medium duration fund).  Do note; this was not so much of a concern with the low duration and money market fund (or even the ultra-short duration fund).

Of course, credit risk continues for short duration fund as well. Have a look at the rating profile of the Mirae Asset Short Term Fund –

As you can see, the fund has a mix of AAA, AA and A1+ debt papers in the portfolio. For the same fund, look at the modified duration –

The modified duration is 2.67 years, which means, for every 1% increase in the interest rate, the fund will drop 2.67% in its NAV. The risk associated with the short-term fund is higher compared to all the other funds we have discussed so far.

Also, do notice the Macaulay duration of the fund, it is below 3, as SEBI has defined.

With a considerable amount of risk, you need to be clear with your investment objective in these funds. Invest in these funds only if you have an investment horizon of at least three years in perspective. Of course, with the increased risk, the return expectation is also higher. I think it is prudent to expect about 7 (ish) % return on these short-duration funds.

I think by now, you must have got the hang of how to understand the basics of debt fund.

Here is the SEBI’s classification of a Medium duration fund –

As a task, why don’t you do look upon a fact sheet belonging to a medium duration fund and answer these question –

  • How is the portfolio composition? What do they hold in the portfolio? How are the papers rated?
  • What do you this is the credit risk here?
  • What is the Macaulay duration? Does it match SEBI’s mandate?
  • What is the modified duration? What do you think is the risk associated with the interest rate change?
  • What is your investment horizon if you were to invest in these funds?

I’m reasonably sure that you can carry out the above task with ease. If you find any difficulty of any sort, then please do leave a query at the end of this chapter and I’ll be more than happy to help you with it.

In the next chapter, we will take up the Credit risk, dynamic bonds and the gilts. However, there is one last thing we need to discuss before we end this chapter.

13.4 – The  Franklin India debt fund saga

On 23rd April 2020, Franklin Templeton (India) AMC made an announcement that shook the entire debt fund world.

In an unprecedented move, Franklin has decided to close six of its debt funds, which includes their low duration fund and ultra-short duration fund. The AUM across these six funds is roughly Rs.27,000 Crores.

The reason they cite is – because of the current economic situation, there is a surge in redemption, leading to a liquidity crunch within the AMC.

To put this in perspective, Franklin witnessed a surge in redemption to the extent of over Rs.9000 Crores in March 2020, which as you can imagine is one-third of the AUM across these funds.

Unfortunately, the secondary bond market in India is not liquid enough. It is not easy for the fund managers to quickly liquidate the bonds from their portfolio. For this reason, most of the bonds held to maturity. Of course, the AMC plans to have enough cash to meet daily redemptions, they do this in several ways, including a technique called laddering, wherein they have a blend of papers maturing in different timelines. The liquidity arrangements work when business functions as usual. But as we clearly understand now, things go helter-skelter when tables turn.

None of the AMCs would be (at least up until now) prepared for such a steep surge in redemption.

Hence to ease the situation, Franklin has decided to close down the schemes completely and lockdown the funds entirely, which implies that if you are an investor in these funds, then you cannot place a redemption request.

Please note, the AMC is not winding down the scheme because of the credit or interest rate risk. Folks at Franklin are outstanding in the debt fund game, and they have a vast experience in this segment, but unfortunately, they are now threading on a different territory.

Therefore, dear readers, when investing in debt funds, along with the credit and interest rate risk, factor in a new risk – liquidity risk.

But of course, how do you quantify and apply liquidity risk in a real-life scenario? Well, I don’t know that just yet. However, does this mean that you should completely stay away from debt funds?

No, not at all.

Debt funds play an essential role in asset allocation, and it should play its part in your portfolio. The COVID19 situation if not for anything, has yet again highlighted the importance of asset allocation.

More on this as we cruise through this module!

Stay home, stay safe!

Key takeaways from this chapter

  • Bond yields and bond prices are inversely proportional
  • Interest rate and bond prices are inversely proportional
  • Modified duration helps us understand the change in NAV of the fund (in the context of debt fund) for every 1% change in interest rate
  • Low duration fund has credit risk, but low-interest rate risk
  • Money market fund has credit risk, but low interest rate risk
  • Short and medium duration fund has both credit and interest rate risk
  • Debt investors have to factor in liquidity risk along with credit and interest rate risk



  1. Pulkit says:

    Hey Karthik, great piece, I think the date is wrong here -13.4 – The Franklin India debt fund saga says – ” On 23rd August 2020, Franklin Templeton (India) AMC” instead it should be ” On 23rd April 2020, Franklin Templeton (India) AMC”

  2. Chetan says:

    All these mutual funds are rated by the returns they generate. Rather Rating should be split – Capital Preservation & Returns Generation, from retailers perspective as most wouldn’t know to look at scheme composition & arrive at a decision.

    • Karthik Rangappa says:

      Most of the ratings are flawed Chetan. One should do their analysis without looking at ratings. Will talk more about this as we proceed in this module.

  3. Rajesh Sahu says:

    Great information in varsity,

  4. Mahendra Agarwal says:

    Why you can’t approve Bank FD, Government Bonds, Gold Bonds and Bharat Bond ETF for margin funding for F&O.

  5. reader says:

    A 1% increase in interest rate decreases the bond’s price by 3.2%. A 1.5% increase in “bond price”, lower the bond’s price by 4.8%
    A 1% decrease in interest rate increases the bond’s price by 3.2%. A 1.5% decrease in “bond price”, increases the bond’s price by 4.8%

    the place where the bond price is written in inverted commas looks like a typing error
    it must be the interest rate

  6. Dheeraj Khatri says:

    Hi, Question about The Franklin India debt fund saga:
    let’s talk for one particular fund: Franklin India Ultra Short Bond Fund: by definition Macaulay duration is 3-6months

    1. So can we assume that the investors money will be returned in 6months at max?
    2. I understand that now purchase and redemption is blocked for this, but until money is returned to investors, does the NAV of these funds will be frozen or will it keep on varying?
    3. In the situation of COVID-19, let’s say borrowers are not able to pay the money back to Franklin, it’s Macaulay duration will be affected? Then usually how does this being managed or it’s simply not taken care by Fund Manager.

    Thanks a lot, hoping for a reply. I’m one of the investor who has parked a bit sum in this fund and feel really sad now.

  7. Chiranjeevi says:

    Sir, when you mean 1% increase in the interest there will be “n” decrease in the NAV, what interest rate does it mean here? Because, all the CDs,CPs or Bonds that are invested have already fixed the coupon rate right? Could you please explain a bit more on this?

    • Karthik Rangappa says:

      I’m talking about monetary policy rates. Yes, the change in rates have a higher impact on bonds compared to CD and CPs, in fact that is evident with the low modified duration of these funds.

  8. Srinath jayanna says:

    Sir what is redemption?

    • Karthik Rangappa says:

      When a mutual fund investor wishes to take back the invested money, its called a ‘redemption’ request.

  9. Amit says:

    Hindi me please

  10. Srinath jayanna says:

    Sir on what basis will Franklin Templeton investors will get there investments back,is it on nav as of 23/4/2020 is when they announced the shutting down of those 6funds or will it be on the nav on the sale day of those assets.

    • Karthik Rangappa says:

      I think the NAV for the funds will be announced on a daily basis. We are waiting for more details on this, will share as and when we get more info.

  11. barun gupta says:

    What will happen to etf like niftybees or bankbess… If the AMC closes or go bust like franklin templton…is these etf will track respective benchmark with little tracking error… irrespective of the performance of fund houses …or there is any fund house risk in it…kindly add chapter on etf also.

    • Karthik Rangappa says:

      Franklin was a case of liquidity in debt markets. I’m assuming ETFs, although not liquid, is still better than DEBT. Also, the segment itself is small compared to the debt funds. Will add a chapter on ETFs.

  12. barun gupta says:

    thanks but sir…is there any risk in terms of AMC prospective….or should i change from niftybees from reliance nippon to say icici nifty bees or kotak nifty bees etf.

  13. Abhijeet H says:

    Hi Karthik,

    I have gone through all your chapters and I must say your way of explaining things is simple and easy to understand. Would request you to upload the remaining chapters soon. I am investing in MFs for last 3 years based on self analysis. However I still find it very difficult to find a single source to get all the relevant information. There are multiple sites like moneycontrol, value research, etmoney etc. But I get confused when I see different sites. Also some of the information like Macaulay duration, Modified duration etc. are not readily available. Can u please let me know a SINGLE SOURCE from where i can analyse the MF.?

    • Karthik Rangappa says:

      Thanks, Abhijeet. I need time to prepare the content, so this will take some time 🙂

      Btw, I too look at the same sites and get all the info. Sometimes, it is best to visit the AMC website and get all the relevant info from the factsheet.

  14. Akshay Satpaise says:

    If the redemption requests and new investments are blocked in Franklin Templton debt funds, then how NAV is expected to change? Is it that the NAVs will change because of the expected defaults made by the company or after the default occurs?

  15. Srinath jayanna says:

    Sir why sebi is not aware of this Franklin liquidity problem,is it not a bigger scam than PMC was 10k crs franklin is of 28k crs,why they have not disclosed the information of borrowings from banks to pay back investors,what do you say about this do u think they are transparent in this issue.

    • Karthik Rangappa says:

      Its not a scam, Srinath. This is a market-led scenario. AMC was transparent, they conducted in ways prescribed by SEBI, it is just an unfortunate incident.

  16. tarakesh says:

    Sincerely appreciate the great work Karthik.

    Is there a single place where all the parameters of a liquid fund can be compared ? Most of the places like value research provide individual performance etc.. It is difficult to compare asset quality, beta, sharpe rato etc..

    Thanks again.

  17. Jayendra Katti says:

    Hi Karthik,

    You have a great knack of explaining things. Keep it up!
    I have couple of questions:

    1) Now that the government is dropping interest rates (almost every year) to spur growth, would it be advisable to go for higher modified duration funds? Or is there a catch here?
    2) Can you please explain the inverse proportionality of the yield and price of the bond?



    • Karthik Rangappa says:

      1) Higher the modified duration, higher the risk. Which implies that you will have to be prepared for long term investment in the debt funds. You have to take that call based on how you plan to structure your portfolio.

      2) If the bond price drops, then yield increases. Think about a discounted paper available to you at 96, this means the yield is about 4% (assuming you get 100 on maturity). If the interest rate drops, then the price can drop to 95.5, and therefore the yield increases to 4.5%. This is a crude example, but I hope you get the gist.

  18. Divyam says:

    Can u please include a working guide to understanding credit ratings and how reliable are they?

  19. Indranil Chakraborty says:

    IDFC debt fund is less risky comparing to Nippon debt fund. So if interest rate increase then chance of selling and moving out from this fund would be higher, taken into consideration the risk factor. so bond price / nav would decrease rapidly. Thats why Modified duration is high in the case of Nippon bond fund

    Am I right?

  20. Jalpa Jain says:

    For last 3 months, I have been investing in equity mutual funds.

    As stock market is fluctuating these days , I was wondering to invest on index fund as well. I amnot sure , I should start investing them right away or wait for some more days for stock market to come down?

    Also , we can’t thank you enough for the amount of efforts you are putting in these course. Deep gratitude.

    • Karthik Rangappa says:

      Jalpa, if you are doing a one-time investment, then maybe you can take the wait and watch approach. If you are doing a SIP in index fund, then go ahead and invest, no need to wait and watch.


    I want you to please discuss the tax details that needs to be paid while selling different funds.

  22. Dipa Patel Rakesh Patel says:



  23. Jalpa jain says:

    I am not able to reply to previous answer on index fund . Assume there is some technical errror right now.

    Hence, posting saparate que on your answer on index fund.
    Your answer is:
    “Jalpa, if you are doing a one-time investment, then maybe you can take the wait and watch approach. If you are doing a SIP in index fund, then go ahead and invest, no need to wait and watch.”

    For index funds , there are different views by different investors. In Intelligent Investor, it says,it is good to do index funds in SIP mode. Others says , it is good to do them in Lumpsum. So,

    1) How to decide , What appraoch is right for you?
    2) Considering current situation, how should we think of index funds, lumpsum or SIP?

    Thanks in advance!

  24. Anup Dutta says:

    Thanks for explaining in depth information about mutual debt mutual funds.

    It will be great if there can be suggestive debt portfolio, especially for 50+ age group, who wants to park a substantial part of portfolio in debt instruments.

    The suggestive portfolio, I meant the type of fund.

    Suppose I want to keep my 3 years equivalent expenditure in debt fund.

    For Sort team (less than 3 months), I can easily select ultra Short term/Over night fund.but for rest of the period I am little confused with so many type of funds.

    Also like technical analysis, if you can suggest a debt fund check list, which a retail investor can easily digest and execute.

    Thanks in advance

    • Karthik Rangappa says:

      I will do this, Anup. For 3 years, I’d suggest a low duration or a money market fund. It is scary to beyond this in the current circumstances 🙂

  25. Sumit Singh says:

    Karthik – You are doing a great service to the community by writing these awesome articles. They are really helpful. I have recommended these to my family members and they also loved it. I hope this series continues and become a benchmark for not so informed retail investors and public at large.

    Just to let you know, these articles on personal finance are not available on varsity app. Was wondering why it is so?


    • Karthik Rangappa says:

      Thanks for the kind words and thanks for helping us spread the word, Sumit. We have a lot more to add here, so this module will continue for a while 🙂

      We are adding one module at a time, this will be added to the app when the module is complete.

  26. Aman says:

    First of all hats off you guyz….means if I have learnt how to swim in ocean of share market….all credit goes to you guyz….may god always bless you guyz….
    Now as concern to my query…are you guyz planning for any module on algo trading in future.. because if you are introducing this module in this portal..than anyone can wait for that in coming future…..and if you aren’t then please guide how to proceed for algo trading learning

    • Karthik Rangappa says:

      Thanks for the kind words Aman 🙂

      Currently, there are no plans to introduce that, will certainly keep that in mind.

  27. Gaurav says:

    Hey , loved you’re explanation on the mutual funds and personal finance in general . I think you are doing a great work by spreading this knowledge to everyone for free and in depth. As i have gone through many investing sites and MF sites and almost 90% of them only talk about the return aspects (1yr,3yr,5yr) but none of them are concerned about telling about the risks or educating us before we put our hard earned money. I don’t think even a Mutual fund agent selling any scheme would like to explain this stuff in detail obviously because of higher commissions. It is only now in the crisis times that their truth comes in picture.
    I also feel that India’s financial literacy is still very low and it needs to be promoted on wider scale and people like you are at forefront of it. I have shared your article and varsity app to all of my friends but many are still very slow in their efforts as i feel many of them and their parents are not confident about the MF industry i.e due to mainly lac of knowledge and they still keep lakhs of rs. in their bank accounts for long period of time.
    Apart from it i wanted to know about gilt funds and index funds. Also i wanted to ask that is it good to rely only on equity mutual funds for now or should i also start directly investing in stock markets, considering i am little new to the markets and i am gradually learning about fundamental analysis and i am from finance background ??
    Thanking You!!

    • Karthik Rangappa says:

      Thanks for the kind words and also for spreading the word. Every effort counts 🙂

      In the next chapter, I will discuss the GILT fund and few other funds. Of course, I will talk about the Index fund as well. While MF is a good, direct EQ is also a great component of your portfolio, but it depends on how well you are equipped to handle this. The more you learn, the better you get it.

  28. sankar says:

    Its lucky that your friends have not invested in MF. If they have invested in MF last year, they would have lost 30-50 percent today. Nothing is certain.

  29. Gaurav says:

    Hey , i have a question regarding , Ultra short term , Liquid Funds and debt funds in general . In current situation. Since their is lock down since 1 and half months now ,even the well run Companies are incurring losses ,So what do you think about the Credit risk and Default risk related to it. Do we need to expect a sharp increase in these risk even for the “AAA” papers due to current crisis .
    Also I have even seen a sharp decline in most of the Debt funds at the end of April , i guess due to panic among investors after “Franklin India Debt Saga”.
    So i wanted to know your views on it and what should we do , can we invest in a scheme now, having satisfied by its current records or we should wait and watch , as situation may drastically change in coming months.

    • Karthik Rangappa says:

      Debt funds are a scary term now. Your thinking is right, there could be rating cuts and even default, but the problem is timing these events. I’d suggest you carefully track and take a wait and watch approach.

  30. Akash says:

    Great study material from Zerodha.

    Sir what is SORTINO Ratio and Side Pocketing in MFs ?


  31. Nikhil says:

    Hi Karthik,
    Bond prices are inversely proportional to interest rate. Looking at current scenario repo rate 4.25 now. Do you think it will go further down? If not then do you think it is good to shift low and ultra low duration fund which has modified duration less than 1. (Low interest risk). May be just related question , you said fund manager hedge the interest rate risk. Can you explain how they do it


  32. Bijan Nayak says:

    Dear Sir
    Really the contents are very useful for investors. As i am risk taker so in general how many nos. of MF/SIP should be in my portfolio

  33. Nikhil says:

    Interest rate predication is complex I know 🙂 , Can you please explain how fund manager hedge interest rate risk ?

    • Karthik Rangappa says:

      They do this with fixed income strategies, check out things like laddering, butterflies, and barbells 🙂

  34. Aftab Pasha says:

    Hi Karthik,

    Love your content, kudos to you and your team.
    Can you please cover Gold funds in coming modules, how it works and its details.

  35. Vikas Chawla says:

    Sir, one suggestion.

    In Zerodha Coin, we don’t have the asset allocation of the mutual funds unlike other brokers (Eg. ICICI). Please try to add this feature in the future if possible, so that the complete information about the mutual fund especially its allocation in sectors & companies can be analysed.

  36. Krishna says:

    Karthik I have a doubt regarding Nifty and Bank Nifty Futures. I know they have recently introduced Weekly options on Nifty but there seems to be no observable pattern if I see the dates of various expiries. It extends to December of 2023, which is 3 years away. Can you explain what are the new expiry series in Nifty and how to make sense of them? It would be of great help. Thank you.

    • Karthik Rangappa says:

      Options expiring in Dec 2023 are called a long-dated option, they are not tradable as there is hardly any liquidity. I’d suggest you stick to the monthly contracts, this is where all the action lies 🙂

  37. Krishna says:

    As you said, there is no liquidity in the long dated options sir. But my question was more geared towards theoretical understanding of Expiry Series. I could not see any noticeable pattern. Can you please shed some light on this? For theoretical understanding.

  38. Deshaj says:

    Highly informative content Karthik! Thanks for sharing

    When is the next chapter coming?

  39. Sundeep says:

    Karthik after reading your trading systems module I’m highly motivated to build a trading system of my own. I have seen that you say we’ve to get clean data from nse certified vendors. Now how is that data different from data downloaded from NSE and cleaning it ourselves? Also, if we buy data from vendors is it like a one time purchase where we get historical data? Please answer both the questions. Thanks a ton for all your work karthik. Greatly indebted to you.

  40. Sundeep says:

    Karthik after reading your trading systems module I’m highly motivated to build a trading system of my own. I have seen that you say we’ve to get clean data from nse certified vendors. Now how is that data different from data downloaded from NSE and cleaning it ourselves? Also, if we buy data from vendors is it like a one time purchase where we get historical data? I am asking this from the point of view of constructing a Quant System. Please answer both the questions. Thanks a ton for all your work Karthik. Greatly indebted to you.

    • Karthik Rangappa says:

      1) Yes, you can get data from NSE and clean it up yourself. Its just that it is a daily process. If I were you, I’d opt for the data from a vendor, where his primary job is to give you clean data
      2) It is usually a yearly subscription. You get historical plus the data for the coming year

  41. dhananjay says:

    thank you for your efforts, really great to have simple explanations. please provide mutual fund diversification.i have a query-
    for a person in 30% tax slab, what is better- overnight/ liquid debt fund or govt bank FD to safely invest? sip in equity mutual fund are already there.

    • Karthik Rangappa says:

      This should depend on your overall portfolio, I may not be in a position to render a good advice 🙂

  42. Ritesh Jha says:

    Hi Karthik,
    I have some lump sum amount that i wanted to invest in index funds (please suggest if anything will be better than index fund at this time).. i was thinking of taking the STP route with first parking money in a liquid fund and then moving the money to index funds in a period of around 6 months.. now my question is given the uncertainty in the market is it advisable to park the money in the liquid fund or i will be good with money in the Bank and taking conventional SIP route to the index funds..

    Also any suggestions on which index funds to choose will be welcome, not looking for names, what criteria i should apply or what parameters i should look at . Thanks

    • Karthik Rangappa says:

      Rites, given the environment, you can park the money in your bank SB and then SIP in an index fund. I think UTI has the lowest expense ratio

  43. Mahendra Prajapati says:

    sir, isme aur bhi chapter hain kiya ?

  44. Rashmi says:

    Nice study material to gain knowledge about personal finance..Thank you
    1.Can you please tell how nifty and gold etf are related?
    It’s seen that as market goes up gold price goes down and vice versa..Please explain this
    2. Does it necessary for one to have certain amount of index and gold in their portfolio to stabilize profit and loss ratio..

    • Karthik Rangappa says:

      1) Will include that in an ETF section
      2) It is good to have these in a portfolio to spread risk and stabilize the portfolio.


    Two days ago, I read about the modified duration above & yesterday, RBI cut repo rate by 0.40. So, I thought of testing it.
    Fund.Dir-Grth Mod. Dur. Y’day Gain
    ABSL GSF. 7.32. 0.60
    DSP GSF. 6.95. 0.69
    EDEL GSF. 5.5. 0.68
    ICICI 10 Yr. 7. 0.61
    IDFC GSF. 6.8. 0.57
    NIPP GSF. 6.6. 0.50
    It appears that the math is not that simple. Other forces also play. Please explain.
    By the way, although I did not know these technicalities, I participated successfully in last 3 gilt rallies, gaining 12%+ for 2/3 years. I get in after couple of rate cuts & get out after first rate hike.
    Thanks for your educative lessons.

  46. vinay rao says:

    Hey ,i had searched about the short terms funds of different AMC’S but in the factsheet or in the portfolio I did not find the modified duration and Macaulay duration, where I can find those in the fund?

  47. Smita says:

    What the gap between present bond yields of 5.95 and RBI rate 4% tells us? Is it possible that the bond yields will fall to 4% over a period of time?

    • Karthik Rangappa says:

      No, it depends on the bond in reference. Remember, it has to factor in interest rate risk + credit risk and the premium associated.

  48. Shivkumar Gangadhar Patil says:

    A 1.5% increase in bond price, lower the bond’s price by 4.8%..
    Kartik sir, how is this possible..?

    I think correct line should be ” A 1.5% increase in Intrest rate, lower the bond’s price by 4.8%.”

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