Relative strength (RS) and RS rating

How a stock has performed compared with the market or its sector. Not the same as RSI.

Technical indicators Live NSE examples below

What is Relative strength?

Relative strength compares a stock's performance with a benchmark. A stock up 10% while the Nifty is up 15% has weak relative strength despite rising. Leadership, meaning stocks that outperform in both up and down markets, is one of the most reliable features of big winners, which is why RS is central to momentum investing. Do not confuse it with RSI, which measures a stock against its own history.

Formula

RS vs Nifty (3M) = stock's 3-month return − Nifty 50's 3-month return RS rating (1-99) = percentile rank of a weighted blend of 3, 6, 9 and 12-month performance across all NSE stocks Mansfield RS = (stock ÷ Nifty ratio) relative to its own 52-week average

How to read it

  • An RS rating of 90 means the stock outperformed 90% of NSE stocks over the blended period.
  • Rising RS during a market correction marks the stocks institutions refuse to sell, often the next leaders.
  • A new high in the RS line before a new high in price is a classic early-leadership signal.

Common mistakes

  • Assuming high RS means cheap or safe. It is purely about price leadership, and leaders fall hard when momentum turns.

Live: NSE stocks matching this today

Relative strength leaders today 172

StockChange %RS rating (1-99)RS vs Nifty 3M
TBZTribhovandas Bhimji Zaveri Limited+5.00%99.00+234.05%
SWANDEFSwan Defence and Heavy Industries Limited-1.20%99.00+31.89%
STLTECHSterlite Technologies Limited-0.63%99.00+33.26%
SIGMAADVSIGMA ADVANCED SYSTEMS LIMITED+4.95%99.00+67.73%
SANGINITASanginita Chemicals Limited+2.00%99.00+87.80%
BODALCHEMBodal Chemicals Limited+3.39%99.00+191.11%
BLISSGVSBliss GVS Pharma Limited-2.98%99.00+42.65%
WELCORPWelspun Corp Limited+3.86%98.00+99.57%

See the full list (as of 2026-09-21) →

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⚠️ How this site is made: Market data pages are computed automatically from NSE/BSE publications and company filings; news articles and announcement analyses are written with AI. Both can contain errors. Verify with the original sources before any investment decision. Not investment advice; Flash Finance is not SEBI-registered. How we use AI