During an F&O ban period, you can only place orders that reduce or square off an existing position in that stock's futures and options — you can't open a fresh position (Buy or Sell) in any of its F&O contracts until the ban lifts.
What triggers an F&O ban?
A stock enters the ban period when the combined open interest across all its F&O contracts — every strike and expiry — crosses the market-wide position limit (MWPL) the exchange sets for that underlying. This is an exchange-level trigger, not something specific to Rupeezy; it applies the same way across every broker.
What exactly is restricted during the ban?
- No fresh positions — you can't Buy to open a new long or Sell to open a new short in any futures or options contract on that underlying, across all strikes and expiries.
- Square-off is still allowed — orders that reduce or close an existing position go through as usual.
- If you try to open a fresh position anyway, the order is rejected. Rupeezy shows "Stock is in the F&O ban period" as the rejection reason — see Why do orders get rejected? for the full list of rejection reasons.
When does the ban lift?
The exchange lifts the ban once the underlying's combined open interest falls back below the exit threshold it sets for MWPL. Your existing positions aren't force-closed when a stock enters a ban — you just can't add to them or open new ones until it's lifted.
Things to keep in mind
- The ban covers the entire underlying's F&O contracts — all strikes and expiries — not just the specific contract you were trying to trade.
- This is a market-wide, exchange-mandated restriction, not a Rupeezy-specific policy.