The reform package
In 2024–25, SEBI rolled out a sequence of changes aimed at reducing retail speculative damage in F&O: raising lot sizes, restricting weekly expiries to one benchmark per exchange, and tightening broker-side risk controls. Collectively these are the most significant retail-F&O changes in years.
Lot size increases
SEBI raised minimum lot sizes on major F&O contracts. NIFTY and Bank Nifty lot sizes were recalibrated upward. The practical effect: F&O contracts now require more margin per lot, making it harder to take oversized positions with small capital. This is explicitly aimed at reducing the 'blow up your account in a week' retail pattern.
Weekly expiry restriction
SEBI restricted weekly options expiries to one benchmark per exchange (NIFTY on NSE, Sensex on BSE). Previously multiple weekly expiries drove enormous speculative volume. Reducing weekly-expiry availability reduces the predatory theta-decay dynamics that disproportionately hurt retail buyers.
Impact on retail turnover
Post-reform, overall F&O turnover dropped meaningfully. Small-ticket retail options volumes fell the most. Professional / institutional volumes were less affected because they had diversified strategies that didn't depend on multiple weekly expiries.
What this means for your trading
If you were running strategies that relied on multiple concurrent weekly expiries across indices, those strategies need to be rebuilt. If your position sizing depended on the old lot sizes, you need to recalibrate. If your capital was sized for the old framework, you need to reassess whether F&O still makes sense for your account.
What it means for Sleeping Trade
Our engine was updated to respect the new lot sizes and expiry availability the moment each rule took effect. Users did nothing — the system rebalanced to the new regulatory framework automatically. This is an underappreciated advantage of running a managed service vs a self-built system: regulatory changes don't break your operations.
The direction of travel
SEBI is not trying to kill retail F&O. It is trying to reduce the worst-behaviour patterns that drive retail losses. Further reforms — including potentially more formal retail algo disclosure requirements — are likely. Staying on the right side of the regulatory trajectory is exactly why we operate as a software platform with full broker-level auditability.
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