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OI buildup

OI buildup (open-interest build-up): price × OI labels and put-call ratio for the latest session. Sorted by absolute OI change %. Read the OI buildup guide or compare with Manipulation Watch.

Educational analytics only — not investment advice

Signals, paper portfolios, and educational algos are for learning on end-of-day data — not live tips or a broker terminal. Past backtests do not guarantee future results. We are not SEBI-registered investment advisers. Consult a qualified professional before investing real capital. See our Terms and Privacy Policy.

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Frequently asked questions

What is OI buildup (OI build-up)?
OI buildup labels combine the day’s price direction with the change in open interest to describe positioning — for example long buildup when price and OI both rise.
What does put-call ratio (PCR) mean?
PCR is put open interest divided by call open interest across listed contracts. High PCR can reflect hedging as well as bearish speculation, so read it with price trend.
Is OI build-up a buy or sell signal?
No. It is an educational F&O positioning screen from end-of-day data. Confirm with breadth, signals, and risk limits before acting.