Rolling Returns
Firstsource Solutions Ltd.
Every 10-year stretch FSL has been through — 17 of them, each starting a month after the last. The median returned 28.1% a year, the worst 22.5%, the best 29.8%. A single headline CAGR hides all of that.
Every Holding Period
A rolling window is every possible start date, not one. A five-year window starting in January is a different investment from one starting in February, and over twenty years there are a couple of hundred of them. What follows is the full spread of what each holding period actually produced.
Across 125 separate 1-year holding periods, the median returned 18.0% a year. The worst lost 46.1% a year and the best made 440.3%.
Worst start: October 2021 — -46.1% a year for the 1 years that followed.
Best start: June 2020 — 440.3% a year.
Against the Nifty 50: FSL came out ahead in 53.6% of the 125 windows both series cover.
Across 101 separate 3-year holding periods, the median returned 30.5% a year. The worst lost 9.5% a year and the best made 66.9%.
Worst start: March 2017 — -9.5% a year for the 3 years that followed.
Best start: May 2020 — 66.9% a year.
Against the Nifty 50: FSL came out ahead in 88.1% of the 101 windows both series cover.
Across 77 separate 5-year holding periods, the median returned 30.0% a year. Not one of them ended in a loss — the weakest still compounded at 0.5% a year.
Worst start: May 2015 — 0.5% a year for the 5 years that followed.
Best start: March 2020 — 69.3% a year.
Against the Nifty 50: FSL came out ahead in 94.8% of the 77 windows both series cover.
Across 53 separate 7-year holding periods, the median returned 29.4% a year. Not one of them ended in a loss — the weakest still compounded at 19.6% a year.
Worst start: December 2015 — 19.6% a year for the 7 years that followed.
Best start: December 2017 — 41.7% a year.
Against the Nifty 50: FSL came out ahead in 100.0% of the 53 windows both series cover.
Across 17 separate 10-year holding periods, the median returned 28.1% a year. Not one of them ended in a loss — the weakest still compounded at 22.5% a year.
Worst start: March 2016 — 22.5% a year for the 10 years that followed.
Best start: June 2015 — 29.8% a year.
Against the Nifty 50: FSL came out ahead in 100.0% of the 17 windows both series cover.
Windows step forward one month at a time and are measured on month-end adjusted closing prices, so dividends are treated as reinvested. Overlapping windows share months by construction — that is what makes the spread a description of this stock's history rather than a sample of independent trials.
Against The Index
Beating an index once is a result. Beating it across most of the periods an investor could have picked is a pattern. Over 10-year windows, FSL finished ahead of the Nifty 50 in 100.0% of the 17 periods both series cover.
1-year windows
Ahead in 53.6% of 125 periods.
3-year windows
Ahead in 88.1% of 101 periods.
5-year windows
Ahead in 94.8% of 77 periods.
7-year windows
Ahead in 100.0% of 53 periods.
10-year windows
Ahead in 100.0% of 17 periods.
Each window is compared against the index over the identical calendar months, on the same adjusted basis — not against an assumed rate of return.
How This Is Calculated
Windows step forward one month at a time, so they share most of their months with each other. That is what makes this a description of FSL's actual history rather than a set of independent trials — and why the spread should not be read as a probability.
Measured on month-end closing prices adjusted for dividends and splits, so dividends count as reinvested. A window that opened or closed mid-month would differ a little in either direction.
FSLis in today's Nifty 500 universe. Companies that delisted or collapsed are not on this site at all, so the worst outcome shown here is the worst among the survivors.
Measured on data to 2026-08-31, from 2015-04-01. Full definitions are on our methodology page.
HELP CENTER
Everything you need to know about this page and the data presented.
Over 10 years, Firstsource Solutions Ltd. has been through 17 separate 10 years holding periods — one starting every month. The median returned 28.1% a year, the worst 22.5% and the best 29.8%. A rolling return measures every possible start date instead of one, which is why it answers a question a single headline CAGR cannot: how much the outcome depended on when you happened to buy.
No — not in any of the 17 10 years periods the record covers. The weakest of them still compounded at 22.5% a year. That is a statement about the past, not a guarantee about any future 10 years, and it is measured only over the years Firstsource Solutions Ltd. has been listed.
0.5% a year, for the five years beginning May 2015. For contrast the best 5 years returned 69.3% a year, starting March 2020, and the median across all 77 periods was 30.0%. The gap between those two numbers is the part of the outcome that came down to timing rather than to the company.
On this record, yes. 1 year outcomes ranged from -46.1% to 440.3% a year — a spread of 486.4%. 10 years outcomes ranged from 22.5% to 29.8%, a spread of 7.4%. Longer holding periods narrowed the range of results, which is the usual pattern and the reason this page publishes every window rather than one. Narrowing the range is not the same as removing the risk.
In 100.0% of the 17 10 years periods both series cover. Each window is compared against the index over the identical months, not against an assumed index return, so the comparison is a like-for-like record rather than a model.
Windows step forward one month at a time on month-end closing prices adjusted for dividends and stock splits, so dividends are treated as reinvested. A window length is only published once there are at least twelve complete windows behind it — fewer than that describes an anecdote, not a distribution. Overlapping windows share months by construction, which is what makes this a description of the actual history of Firstsource Solutions Ltd. rather than a sample of independent trials. Companies that delisted are not on this site at all, a survivorship bias worth holding in mind.
That is not a question this page answers, and we do not make recommendations. What it can show you is the full range of what every holding period in the listed history of Firstsource Solutions Ltd. actually produced — including the worst ones, which most performance figures leave out. Those are records of what happened, not forecasts. A stock that never had a losing decade may still have one, and holding a single company is a materially different risk from holding an index.
Explore Further
FSL drawdowns and all-time high
The worst fall on record, how long recovery took, and how far the price sits below its peak.
FSL SIP returns
What a monthly investment would have produced, backtested rather than assumed.
FSL overview
Price history, wealth journey and how it compares with the index.
Rolling returns for every stock
Run the same question against any company we track.
ReturnScreener is an educational research platform and is not a SEBI-registered investment adviser. Everything on this page is a record of what historical prices did, not a projection and not a recommendation. Past performance does not guarantee future returns. See our methodology and disclaimer.