A “Slice” in M1 is simply a component of your Pie—either an individual stock, ETF, or even another Pie (a sub-pie). Slices represent how you allocate your portfolio, and removing or selling a Slice can change your investments, cash balance, and taxes. This article explains the difference between deleting a Slice and manually selling it, walks you through both methods on web and mobile, and provides key guidance for smooth portfolio management.
What happens when you remove a Slice?
Deleting (Setting % to 0%) triggers an automatic sale during the next trade window, and proceeds are reinvested into the remaining slices to match your portfolio targets—regardless of your Auto-Invest settings.
Manual Sell lets you decide when to sell, places cash proceeds in your account, and follows your current Auto-Invest settings (may leave the Slice in your Pie until you set it to 0%).
Delete a Slice (Set % to 0)
When to use:
When you want the proceeds reinvested automatically in your portfolio.
Good for keeping your allocations on-target with minimal manual work.
Web
Log in to your M1 account.
Click Invest and choose the Account containing the slice to remove.
Click into the Pie containing the Slice to remove.
Click the “Edit” button under your pie.
Find the Slice, enter 0% as its target allocation.
(If needed) Adjust other Slices so allocations total 100%.
Click Save.
Confirm you want to delete/remove this Slice.
Mobile
Open the M1 app.
Tap Invest and choose the Account containing the slice to remove.
Tap the Pie with the Slice to remove.
Tap Edit.
Set the Slice’s target percentage to 0%.
Adjust others so Pie equals 100% total.
Tap Done, then confirm when prompted.
What happens next?
Your entire position in that Slice (including fractional shares) will be sold during the next trade window.
Proceeds are split among underweight Slices in that Pie to rebalance toward your targets—even if Auto-Invest is OFF.
Manually sell a Slice
When to use:
If you want the sale proceeds to remain as cash (e.g., for withdrawal or later investing).
Web
In your Portfolio, click into the Pie with the Slice.
Click the Slice to open its details.
Click Sell.
Enter the desired amount.
Submit your sell order.
After trade completes, go back to Pie editing.
Set the Slice’s percentage to 0% and adjust others to equal 100%.
Save changes and confirm.
Mobile
In the app, tap Invest→ desired Account & Pie → the Slice.
Tap Move Money drawer → Sell.
Enter amount.
Confirm the order.
Once sell is executed, return to Pie editing.
Set the Slice allocation to 0%, adjust others, and tap Done.
What happens next?
Proceeds from the sale are held as cash, and handled based on your Auto-Invest/cash control settings.
The Slice will remain in your Pie until you set its allocation to 0% (deleting it).
Handling Slices used in Multiple Pies / Sub-Pies
Deleting/Selling a Slice from one Pie affects only that Pie. If the same security or sub-Pie appears in another Pie, its allocation there remains unchanged.
To remove a security completely from your portfolio, repeat the process in every Pie/sub-Pie containing it.
Troubleshooting common issues
Slice isn’t being removed?
Double-check that its allocation is set to 0% and the Pie totals 100% before saving.
Confirm you’ve saved changes after editing.
Trade didn’t execute?
Confirm that your change was submitted before the trade window cutoff.
Check your account’s activity feed for queued or pending orders.
Want to cancel a pending sell?
If the trade window hasn’t yet executed, add the Slice back with a non-zero allocation in your Pie and save. This may cancel a queued sale (verify in your activity feed).
If the trade already occurred, you’ll need to repurchase.
For further help removing Slices or managing your Pies, reach out to M1 Client Success.
To cancel a pending sell, you can add the Slice back to your portfolio.
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All investing involves risk, including the risk of losing the money you invest. Past performance does not guarantee future performance. Using margin can add to these risks. Users utilizing APEX cleared margin accounts should review the APEX margin account risk disclosure before borrowing. Users utilizing M1 cleared margin accounts should review the M1 margin account risk disclosure before borrowing. M1 Margin Loans are available on margin accounts with at least $2,000 invested per account. Not available for Retirement or Custodial accounts. Margin rates may vary.
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This content was generated using artificial intelligence and is intended for informational and educational purposes only. While reasonable efforts are made to ensure accuracy, AI-generated outputs may omit key context; and should not be construed as financial, investment, legal, or tax advice. Users should independently verify all information and consult a qualified professional before making any financial decisions.
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