After placing an order, you might have the option to cancel or replace it before it’s executed within the app.

You can cancel any pending order. However, you currently can only replace a pending stop order or a limit order with a new order for the same order type (stop or limit) it’s replacing.

To cancel or replace a pending order in the app:

1. Select Account → History
2. In Pending, select the order to cancel or replace (if applicable)
3. Confirm the order details, and then select:

• Cancel order (last step if canceling)
• Replace order (if applicable)

4. If replacing an order, change the price or other eligible fields
5. Select Continue
6. Select Review, and then swipe up to submit
7. Select Done or View order if you want to replace with this new pending order

You can cancel a pending fractional order the same way as you would cancel a pending whole-share order. However, you can’t replace a fractional order.

Also, the following are a few times when you can’t cancel a pending fractional order:

• During a trading halt: If a security or the market overall is experiencing a trading halt, you may have the option to cancel pending fractional orders, but the cancel requests won’t be processed until the halt is lifted. These halts aren't Robinhood’s decision and the timing of them is beyond our control.

• Between 9:20 and 9:30 AM ET: If you placed a fractional order outside of trading hours and you want to cancel it prior to market open, you must do this before 9:20 AM ET. You can’t cancel fractional orders between 9:20 and 9:30 AM ET because it's too close to the market open.