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F&O ban list

Names nobody may open a new futures or options position in today — and who is closest to joining them.

A stock goes into the F&O ban when open interest across the market crosses 95% of its Market Wide Position Limit, and comes out when that falls back under 80%. While it is in, nobody may open a new futures or options position in it — only close one. It goes on trading in the cash market with half the derivative demand switched off, which is a fact about how it may be traded rather than about what it is worth, and no price chart states it.

The list is the small half. Most days nobody is banned. The useful question the evening before is who is near 90% and still rising. So the list below shows every F&O stock, how much of its limit is already used, and how much that moved since the last session. A stock at 88% means one thing if it was at 70% yesterday, and another if it was at 94%.

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Company Limit used In ban since Price Day 1M M-cap (Cr)
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How a ban works

How a stock gets here

Every stock with listed derivatives has a Market Wide Position Limit — a cap on how much of the company can sit in open futures and options positions at once, set at 20% of the free-float shares. The exchange restates the whole book in futures-equivalent shares, because a futures contract and an option are not comparable share for share, and measures that against the limit.

Cross 95% and the name is banned for the next session. It stays banned until the figure falls back under 80%. The gap between the two levels is deliberate: a name released at 94% would be back in on the next tick.

What a ban is, and what it is not

It is not a penalty and it is not a fraud signal. A ban means one thing: too much of the permitted derivative exposure is already taken. That happens to perfectly ordinary companies in the middle of a strong trend, and it happens most often to smaller names, whose limits are smaller.

What it does change is how the stock trades. No new positions can be opened, so traders who normally arbitrage futures against the cash market cannot start a new trade. Spreads widen and the stock can move more on less volume. Old positions can still be closed, which is why a banned stock usually sees selling out rather than fresh buying.