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How M1 executes buy and sell orders

Updated over a month ago

M1 uses automated trading to execute all buy and sell orders in the next available trade window after submission. This guide explains how orders are placed and fulfilled, potential reasons an order might not be fully completed, and what price you can expect to receive.

M1 strives to execute all orders efficiently and transparently. You can always track your pending or completed trades directly within your account.

How to view your pending trades

  • Go to the Portfolio tab in your M1 account.

  • Click “View Details” to see information about your upcoming buys and sells.

You’ll be able to view the status and details of pending trades here.

When are buy and sell orders fulfilled?

All trade orders are executed during your next available trade window after you submit them.

Why might an order not be fully completed?

Several factors can impact whether your order is partially or fully completed:

1. Fractional share limitations

M1 allows you to purchase fractional shares in increments as small as 1/100,000th of a share. However, you may still see orders not exactly match your dollar input, especially for higher-priced stocks.

Example: If Stock A trades at $900 per share, the smallest increment is $0.09. If you set a $100 buy, you may receive $99.99 worth due to rounding.

Note: The minimum order size at M1 is $1.00.

2. Using sale proceeds to make buys

If you place sell and buy orders at the same time, M1 will execute your sales first. Buys will be funded from these proceeds. If the actual amount received from a sale is lower than expected, your pending buy orders will be adjusted to the available amount.

What price will I receive for trades?

M1 executes your trades at the market price available at the time of execution.

All brokers, including M1, are required to seek “best execution,” meaning your orders are routed for the most favorable combination of price, speed, and likelihood of completion based on current market conditions.

Factors considered for best execution include:

  • The opportunity to improve on the quoted price

  • Speed of execution

  • Likelihood that your order will be fully executed

Frequently asked questions

What happens if I place an order outside of trading hours?

Your order will be queued and executed in the next available trade window when the market is open.

Can trades ever be canceled?

Once an order is queued, you may be able to cancel it before the upcoming trade window is processed.


All information shown in the above portfolio is for informational purposes only.

Brokerage accounts on the M1 platform are either fully disclosed to APEX Clearing or cleared through M1 Finance LLC. Please look at your account statement to determine how your account is cleared.

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.

Brokerage products and services are offered by M1 Finance LLC, Member FINRA / SIPC, and a wholly owned subsidiary of M1 Holdings, Inc.

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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