Indian F&O markets have distinct risk zones throughout the day. The opening 30 minutes (9:15–9:45) are highly volatile. The afternoon session (12:00–2:00 PM) is often slow with false breakouts. The last hour before expiry (2:30–3:30 PM) is extremely dangerous for options buyers. Most experienced traders avoid trading after a certain time — but in the heat of the moment, they still do it. TradeGuard's time-based kill switch makes the cutoff automatic and absolute.
First 30 minutes have the widest spreads and most erratic moves. Many traders set a "no trading before 9:45" rule to let the market settle.
On expiry day, near-the-money options start rapid time decay. This is when most retail buyers get wiped — stop buying options here on expiry days.
Institutions squaring off positions create artificial moves. Options can move 10–100× in minutes then reverse completely. Experienced traders rarely enter new positions here.
The final 15 minutes on expiry day are the most volatile in Indian markets. Near-zero time-value options swing by hundreds of percent on single points of index movement.
Set a cutoff time in your TradeGuard rules — e.g. "Stop trading after 1:30 PM." When the clock reaches that time, the kill switch fires automatically regardless of your P&L or trade count. Open positions may be squared off depending on your settings.
Weekly expiry (Thursday for BankNifty, Wednesday for Nifty) is the most common day for retail accounts to blow up. The time-based kill switch is especially powerful here — set a cutoff at 1:00 PM or 1:30 PM on expiry days and completely skip the gamma-zone madness of 2:30–3:30 PM.
Many traders have other commitments — jobs, meetings, family. A time-based cutoff ensures that even if you're distracted by other activities, the monitoring stays active and no accidental trades slip through during inattentive hours.