Last Updated on September 15, 2024 at 9:33 am
There are currently two ongoing NFOs – Motilal Oswal Nifty 500 Momentum 50 Index Fund (and ETF) and Nippon India Nifty 500 Momentum 50 Index Fund. In this article, we analyse the risk and reward potential of the underlying index and what you need to know before considering a momentum index.
According to the index factsheet, The Nifty500 Momentum 50 Index aims to track the performance of the top 50 companies within the Nifty 500 selected based on their
Normalized Momentum Score. The Normalized Momentum Score for each company is determined based on its 6-month and 12-month price return, adjusted for volatility. Stock weights are based on a combination of the stock’s Normalized Momentum Score and its free-float market capitalization.
To compute the Normalized Momentum Score:
- 12-month Momentum ratio = 12-month Price Return ÷ standard deviation (SD) and 6-month Momentum ratio = 6-month Price Return ÷ SD are computed.
- Annualised standard deviation of lognormal daily returns of the stock for one year is used.
- Z-Score for 12-month & 6-month momentum ratio is calculated. Z-score is the deviation from the mean momentum ratio divided by the standard deviation of momentum ratios.
- Weighted Average Z Score = 50% * (12 month Momentum Z Score) + 50%
* (6 month Momentum Z Score) - Normalized Momentum Score = (1+ Wgt. Average Z score) if Wgt. Average Z score
>=0 - Normalized Momentum Score = (1- Weighted Average Z score)^-1 if Wgt. Average Z
score < 0 - The top 50 stocks with the highest Normalized Momentum Score are selected
- Each stock in the index is capped at the lower of 5% or five times the weight of the stock in the index based only on free-float market capitalization
- Capping will be done semi-annually at the time of rebalancing
- The weight of stocks may drift between two rebalancing periods due to movement in the stock prices
Considerations for investors
Join 32,000+ readers and get free money management solutions delivered to your inbox! Subscribe to get posts via email! (Link takes you to our email sign-up form)
🔥Enjoy massive discounts on our robo-advisory tool & courses! 🔥
- Is this definition arbitrary? Why choose only 6-month and 12-month windows? Why not 3-month or 9-month windows?
- Why wait 6-months for a rebalance? Will there not be momentum shifts within that time? Recall the 2020 crash and recovery lasted only a month.
- Even a casual inspection of the index methodology would tell us that the Nifty 500 Momentum 50 Index is expected to do well in a bull market. But what about bear markets when there is a lack of momentum?
Now, let’s look at the data. The rosy parts first. If you want to create plots like the ones below, you can join the freefincal investor circle to access exclusive tools.
Evolution of Nifty 500 Momentum 50 TRI vs Nifty 500 TRI since 1st April 2005 in log scale

All since-inception graphs would look exciting like this. But we need to dig deeper (see below).
10-year rolling returns of Nifty 500 Momentum 50 TRI vs Nifty Smallcap 250 TRI vs Nifty Midcap150 TRI vs Nifty Multicap 50-25-25 TRI

That seems impressive. Before we get carried away, we need to look at the time window in the X-axis. It is less than ten years old. So, the history is way too short to have seen a variety of possibilities.
10-year rolling returns of Nifty 500 Momentum 50 TRI vs Nifty Next 50 TRI vs Nifty 50 TRI

Same caveat as above.
10-year rolling returns of Nifty 500 Momentum 50 TRI vs Nifty 500 TRI vs Nifty 50 TRI

Same caveat as above. This graph also illustrates why I keep saying you don’t get much “extra” by choosing Nifty 500 over Nifty 50.
Now, let us get to the nitty-gritty.
10-year rolling risk (standard deviation) of Nifty 500 Momentum 50 TRI vs Nifty 500 TRI vs Nifty Smallcap 250 TRI vs Nifty Midcap150 TRI vs Nifty Next 50 TRI

Notice that the Nifty 500 Momentum 50 has one of the largest standard deviations (volatility) among the indices compared to the small cap index, even higher than the small cap index. This is the price to pay for the higher return “over the long term”.
Show investors a ten-year rolling return graph like this, and they would claim they will stay invested for that long to reap benefits (if any). But talk is cheap. Investors must appreciate that the journey to such a potential higher return is riddled with risk.
5-year rolling returns of Nifty 500 Momentum 50 TRI vs Nifty 500 TRI vs Nifty 50 TRI

Notice that five-year returns of the momentum index fall down to Nifty 50 levels from time to time, and when there is no market momentum, outperformance becomes hard. New mutual fund investors may find it hard to believe market momentum may vanish for long, but it is only a matter of time before it happens.
3-year rolling returns of Nifty 500 Momentum 50 TRI vs Nifty 500 TRI vs Nifty 50 TRI

The risk is more apparent when we consider three-year rolling returns. So, if you wish to hold the momentum fund for ten or more years, you must be prepared for years of underperformance. Most investors are incapable of this.
Motilal Oswal AMC’s presentation deck compares the momentum index’s drawdown with that of Nifty 50.

It is clear that the momentum index falls more from a peak and tends to stay down longer. More instances of its volatile nature can be seen below.
Evolution of Nifty 500 Momentum 50 TRI vs Nifty 500 TRI from April 2005 to July 2009

What goes up fast also comes down fast. Now, is that a smart way of investing?
Evolution of Nifty 500 Momentum 50 TRI vs Nifty 500 TRI from July 2009 to July 2023

One of the reasons for its extreme volatility could be that the 50 chosen stocks from the Nifty 500 may have a good chunk of small cap or mid cap stocks. When the trend reverses, they fall as hard as they move up.
Should you invest in the Nifty 500 Momentum 50 Index?
It is too volatile (than a small cap index) to be the mainstay of a portfolio. At best, it can only be a sidekick included to satisfy the FOMO itch. But then again, mature investors would recognise that sidekicks only increase clutter and do not significantly impact wealth.
Our recommendation is to avoid momentum-based passive (or active) funds. If you “must” include it, add a small exposure. But then again, you can’t keep doing that each time there is a fancy NFO every few months.
Also see:
- Using UTI Momentum Fund to understand the sequence of returns risk
- UTI Nifty200 Momentum 30 Index Fund: Who should invest?
- Tata Nifty Midcap 150 Momentum 50 Index Fund Review
- Data Mining in Index Construction: Why Investors need to be cautious
- Why Nifty Midcap150 Quality 50 index performance is a warning for factor investing fans
🔥Enjoy massive discounts on our courses, robo-advisory tool and exclusive investor circle! 🔥& join our community of 7000+ users!
Use our Robo-advisory Tool for a start-to-finish financial plan! ⇐ More than 2,500 investors and advisors use this!
Track your mutual funds and stock investments with this Google Sheet!
We also publish monthly equity mutual funds, debt and hybrid mutual funds, index funds and ETF screeners and momentum, low-volatility stock screeners.





- Do you have a comment about the above article? Reach out to us on Twitter: @freefincal or @pattufreefincal
- Have a question? Subscribe to our newsletter using the form below.
- Hit 'reply' to any email from us! We do not offer personalized investment advice. We can write a detailed article without mentioning your name if you have a generic question.
Join 32,000+ readers and get free money management solutions delivered to your inbox! Subscribe to get posts via email! (Link takes you to our email sign-up form)
About The Author

Our flagship course! Learn to manage your portfolio like a pro to achieve your goals regardless of market conditions! ⇐ More than 3,000 investors and advisors are part of our exclusive community! Get clarity on how to plan for your goals and achieve the necessary corpus no matter the market condition is!! Watch the first lecture for free! One-time payment! No recurring fees! Life-long access to videos! Reduce fear, uncertainty and doubt while investing! Learn how to plan for your goals before and after retirement with confidence.
Our new course! Increase your income by getting people to pay for your skills! ⇐ More than 700 salaried employees, entrepreneurs and financial advisors are part of our exclusive community! Learn how to get people to pay for your skills! Whether you are a professional or small business owner who wants more clients via online visibility or a salaried person wanting a side income or passive income, we will show you how to achieve this by showcasing your skills and building a community that trusts and pays you! (watch 1st lecture for free). One-time payment! No recurring fees! Life-long access to videos!
Our new book for kids: “Chinchu Gets a Superpower!” is now available!


Must-read book even for adults! This is something that every parent should teach their kids right from their young age. The importance of money management and decision making based on their wants and needs. Very nicely written in simple terms. - Arun.Buy the book: Chinchu gets a superpower for your child!
How to profit from content writing: Our new ebook is for those interested in getting side income via content writing. It is available at a 50% discount for Rs. 500 only!
Do you want to check if the market is overvalued or undervalued? Use our market valuation tool (it will work with any index!), or get the Tactical Buy/Sell timing tool!
We publish monthly mutual fund screeners and momentum, low-volatility stock screeners.
About freefincal & its content policy. Freefincal is a News Media Organization dedicated to providing original analysis, reports, reviews and insights on mutual funds, stocks, investing, retirement and personal finance developments. We do so without conflict of interest and bias. Follow us on Google News. Freefincal serves more than three million readers a year (5 million page views) with articles based only on factual information and detailed analysis by its authors. All statements made will be verified with credible and knowledgeable sources before publication. Freefincal does not publish paid articles, promotions, PR, satire or opinions without data. All opinions will be inferences backed by verifiable, reproducible evidence/data. Contact information: letters {at} freefincal {dot} com (sponsored posts or paid collaborations will not be entertained)
Connect with us on social media
- Twitter @freefincal
- Subscribe to our YouTube Videos
- Posts feed via Feedburner.
Our publications
You Can Be Rich Too with Goal-Based Investing

Gamechanger: Forget Startups, Join Corporate & Still Live the Rich Life You Want

Your Ultimate Guide to Travel
