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Choose the return you want to compare
A price return measures how much a share price or index level changed. It excludes dividends. A total return includes dividends and assumes they are reinvested according to the series’ methodology. If you want to compare investment performance, use total returns for both the stock and benchmark.
NSE says investors should benchmark investments in index stocks against a Total Returns index rather than a price index to determine actual returns relative to the index. NSE Indices’ Total Returns Index explainer describes this distinction. NSE’s FAQ notes that the commonly reported NIFTY 50 is a price index, while NIFTY 50 TR includes dividends. In its historical example, both series had a base of 1,000; on December 31, 2001, the price index was 1,059.05 and NIFTY 50 TR was 1,150.28. That example illustrates accumulated dividend reinvestment; it is not a current performance figure. NSE Indices FAQ
NSE’s equity-index methodology distinguishes total return, which incorporates dividend payouts and reinvestment after the ex-date, from net total return, which also accounts for withholding tax and specified stock-dividend tax treatment. Identify whether a series is price return, gross total return, or net total return; do not compare unlike variants without explaining the difference. NSE equity-index methodology
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Calculate the stock’s relative performance
- Set the dates. Choose the period that matches the holding period or question you are analyzing. Use identical start and end dates for the stock and index, preferably matching trading dates.
- Select matching data. For the stock, use adjusted values or a total-return series that accounts for relevant dividends and corporate actions. For the index, choose the equivalent price, gross total-return, or net total-return series. Keep currency consistent.
- Calculate each cumulative return. For each series, calculate
(ending value ÷ starting value) − 1, then multiply by 100 to express the result as a percentage. - Find the percentage-point gap. Subtract benchmark return from stock return:
stock return − benchmark return. For example, if a stock returned 18% and its benchmark returned 12% over the same dates using the same return convention, the stock outperformed by 6 percentage points.
A positive gap means the stock outperformed that benchmark during that historical period; a negative gap means it lagged. The comparison does not indicate whether the stock took more risk or predict what it will do next.
Pick a benchmark that fits the question
Nifty 50 and Sensex are large-cap headline benchmarks, but they are not interchangeable labels for the whole market. NSE describes Nifty 50 as a 50-stock index spanning 13 sectors and calculated using free-float market capitalization. Its profile reported that the index represented about 53.73% of the free-float market capitalization of stocks listed on NSE as of March 30, 2026; that is a dated coverage statistic, not a return figure. NSE Nifty 50 profile
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Sensex is BSE’s flagship benchmark, and BSE methodology materials identify a BSE SENSEX Total Return Index variant. When comparing against Sensex, specify the exact series and whether it is price or total return. BSE index methodology materials
Choose the benchmark that best represents the comparison you mean. If the stock is outside the large-cap segment or is strongly tied to a particular industry, a size, broader-market, or sector index may be a useful additional comparator. That is a benchmark-fit judgment, not a claim that one index is universally superior.
Handle different time periods consistently
A cumulative return over several years should not be compared directly with a one-year return. If you need to compare periods of different lengths, annualize both series using the same elapsed-time convention and label the result as annualized. For a single holding period, the cumulative percentage-point gap is usually the clearest answer.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Keep return separate from risk
The return gap tells you only whether the stock beat or lagged the selected index over the selected dates. It does not adjust for volatility or other risks. NSE defines beta as the movement in a stock’s or portfolio’s returns in relation to market returns; in practice, the market return may be measured by an index such as Nifty or a mid-cap index. Beta offers a separate historical co-movement perspective, not a forecast or replacement for the return comparison. NSE stock-market basics
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Before interpreting a result, check that the window does not hide a very different path of gains and losses, that dividends and corporate actions are treated consistently, and that the index represents the stock’s market segment. A single start-to-end figure can conceal substantial volatility along the way.
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