If your limit order is sitting unfilled and you’ve changed your mind, the cancellation flow on Webull is a five-tap process from the Orders screen. Below is the full flow plus the important details about partial fills, GTC behavior, and Webull’s “best-effort” cancellation policy.
The most important thing to understand: Webull cancels orders on a best-effort basis. A cancellation request is not guaranteed to succeed — particularly if the order is partially or fully filling at the moment you request the cancel. The window between you tapping Cancel and the market matching your order can be milliseconds.
Cancel a limit order on Webull
- Open Webull (mobile app or desktop) and sign in; land on the main screen.
- Click Orders or Open Orders.
- Find the order with status Working or Open (only these can be cancelled; Filled cannot, Partially Filled can cancel the unfilled remainder).
- Click the order to open its details and confirm the symbol, quantity, price type, and status.
- Click Cancel Order to send the cancellation request; the status updates to Cancelled once processed.
If the order is in a Working or Pending state, the cancel request goes out to the exchange. Webull reports success or failure within seconds.
When you can cancel a Webull limit order
Webull lets you cancel:
- Any pending limit order that hasn’t filled yet
- Any pending GTC (Good-Til-Canceled) limit order that’s been sitting on the books
- The unfilled portion of a partially-filled order. The already-filled portion is yours — that part can’t be undone.
Webull does NOT let you cancel:
- Filled orders. Once an order fills, it’s a completed trade. To reverse, you need a new opposite trade.
- Orders that are mid-fill. If the market is matching your order at the exact moment you request the cancel, Webull may report the cancellation failed because the order filled first.
Cancel + replace (modify) instead of cancelling
If your real goal is to change the limit price or quantity rather than cancel outright, Webull lets you Modify the order:
- Same path: Orders → tap the order.
- Instead of Cancel, tap Modify.
- Adjust price, quantity, or order type.
- Submit.
Modifying is functionally a cancel-and-replace under the hood — the original order is cancelled and a new one is submitted in one step.
Practice in Paper Trading first
Webull’s Paper Trading environment is a good place to practice the cancel flow without risking real money. Same UI, same buttons, simulated orders. The cancellation steps work identically.
What happens if my limit order partially filled?
This is the most important edge case to understand. A limit order can fill in pieces — particularly large orders, thinly-traded stocks, or orders placed during volatile open/close periods.
Example
You place a limit order to buy 100 shares of a stock at $50.
The market touches $50, but only 30 shares are available at that price. Webull fills 30 shares at $50. The remaining 70 shares stay on the books waiting for more liquidity at $50.
If you tap Cancel at this moment:
- The 70 remaining shares are removed from the order book — that’s the cancel succeeding.
- The 30 already-filled shares are yours. They’re a completed trade. Cancel does not unwind them.
You’ll see in your trade history: 30 shares filled at $50, plus a “Cancelled — 70 shares” entry for the unfilled portion.
For the 30 filled shares, you pay the full purchase price plus any applicable fees. There’s no refund of the partial fill.
GTC (Good-Til-Canceled) limit orders
Webull supports GTC orders that stay open for an extended period — typically up to 60 days or until you cancel them.
- They sit on the books across multiple market sessions.
- They auto-cancel after 60 days if unfilled.
- They can be cancelled or modified through the same Orders flow at any time.
Common cancellation errors and fixes
“Cancel failed — order already filled” — race condition. The market matched your order in the milliseconds between your tap and Webull’s request reaching the exchange. The fill is real; check your positions.
“Cancel failed — order partially filled” — same race condition, partial. The unfilled portion may or may not have cancelled depending on timing. Check the order status.
“Cancel pending” — your request was accepted but Webull hasn’t received exchange confirmation. Wait 30-60 seconds.
Cancel button is grayed out — order is in a state that doesn’t allow cancellation — typically already filled or in the process of filling.
App says cancelled but order still appears active — refresh the Orders list. Stale UI.
Cancel during pre-market or after-hours doesn’t go through — Webull supports cancels during extended hours, but exchange behavior varies.
Multiple cancel requests on one order — don’t spam-tap. Webull queues only the first request.
Best practices for limit-order management
- Set a price you actually believe in. “Just in case” GTCs at unrealistic prices clutter your Orders screen and occasionally fill at moments you’ve forgotten about.
- Review your open orders weekly. Old GTCs can become a liability when the original investment thesis has changed.
- Cancel before earnings if you have an unrelated open order on the stock — earnings volatility can fill orders you’d forgotten about at prices you wouldn’t have set today.
Tools to track your Webull and other accounts
Empower (free) → — free net-worth tracker that auto-imports Webull, brokerage, bank, and 401(k).
If you’re sticking with Webull, Webull frequently runs free-stock promotions for new accounts.
Trade on Webull Webull offers commission-free trading, fractional shares, and free Level II market data. Open a Webull Account →
FAQ
Will Webull always succeed in cancelling my order?
No. Cancellation is best-effort. Race conditions with the exchange can cause cancels to fail if the order is filling at the same instant.
Does cancelling cost anything?
No. Cancel is free.
Can I cancel a stop order or trailing stop the same way?
Yes. Same Orders → tap → Cancel flow.
Can I cancel an after-hours order outside market hours?
Generally yes, but extended-hours exchange behavior varies. The cancel may queue until the next session opens.
What if I want to modify rather than cancel?
Use Modify instead of Cancel from the order detail screen.
Does cancelling affect my buying power?
Yes — cancelling an open buy order returns the held cash/buying power immediately. Cancelling a sell order returns the held shares to your available position.
What if my order is partially filled — can I cancel just the rest?
Yes. Tapping Cancel on a partially-filled order cancels the unfilled portion. The filled portion stays.
How long does cancellation usually take?
Seconds during regular hours. Up to a minute during high-volume periods.
Related reading:
- How to Add a Beneficiary to Your Webull Account
- How to Disable 2FA on Robinhood
- How to Cancel Automatic Deposits in Robinhood
- How to Set Up Dividend Reinvestment on TD Ameritrade / Schwab