Good Till Cancelled (GTC) is an order time-in-force instruction that keeps a pending order active until either:

  1. The order is filled (executed)
  2. The trader manually cancels it

GTC vs Other Durations

DurationDescription
GTCActive until filled or cancelled
Day OrderExpires at end of trading day
GTDGood Till Date — expires on specified date
IOCImmediate or Cancel — fill what’s possible now
FOKFill or Kill — fill all immediately or cancel

When to Use GTC

✅ Long-term support/resistance entries ✅ Limit orders at key price levels ✅ When you’re patient about entry price

Risks

⚠️ May execute during unexpected volatility ⚠️ Forgotten orders can trigger at bad times ⚠️ Some brokers auto-cancel GTC orders after 30-90 days

Best Practice

Review GTC orders weekly. Set calendar reminders to check if your price levels are still relevant.