In futures and options, pairing the day's price move with the change in open interest gives a descriptive read of how positioning is shifting. WealthStar shows this on every F&O name in the Nifty 500 universe.
Open interest (OI) is the total number of derivative contracts that are currently open — not yet closed or settled. Rising OI means new positions are being added; falling OI means positions are being closed. On its own OI is just a count; paired with the price move, it becomes informative.
Long buildup — price up and OI up: fresh long positions being opened. Short buildup — price down and OI up: fresh short positions being opened. Short covering — price up but OI down: existing shorts buying back to exit. Long unwinding — price down and OI down: existing longs selling to exit. The price leg tells you the direction; the OI leg tells you whether it is fresh positioning or existing positions closing.
Two stocks can both be up 3% today. One is a long buildup — fresh longs piling in, OI rising. The other is short covering — up only because trapped shorts are buying back, OI falling. Same price change on the screen; very different meaning underneath. The first says new conviction; the second says a squeeze that may fade. Open interest won't tell you the future, but it tells you the quality of the move in front of you — context a bare price chart can't give.
These classifications are descriptive, not predictive. Around monthly expiry they get noisy as positions roll from one series to the next, so a single day's read can mislead. WealthStar labels the buildup on each F&O name so you can see the positioning context — one input alongside the chart and your own judgement.
Educational analysis only. WealthStar shows descriptive data and classifications — not buy/sell calls, price targets, or investment advice, and it is not a SEBI-registered research analyst service. Do your own research.