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Stock order types (weekend and the open)

You can plan and queue stock or ETF buys when the market is closed. The risk is not “trading on Saturday.” It is sending an order that will pay any Monday opening price.

Not financial advice

Broker tickets differ. Confirm live labels and expiry on your app. This page uses percents and process, not account dollars.

What happens when you submit after the close

Regular North American cash sessions are roughly Monday–Friday, 9:30–16:00 Eastern. [verified] as the usual NYSE/TSX window; holidays differ.

Orders placed outside that window typically go into a queue. The broker submits them at the next regular open (Monday 9:30 ET after a normal weekend, or the next session after a holiday). [verified] against common Canadian broker help text (including Wealthsimple: queued orders execute when the market opens).

The fill is the opening prints, not Friday’s last trade. Canadian-listed names open on the TSX clock; U.S.-listed names open on the U.S. clock. Same idea.

A gap is when the first Monday trade is away from Friday’s close (news, futures, FX). Gaps are normal. For a long-term share sleeve they are not a special disaster if you refuse to pay any price.

Four common buy types

Names match a typical Wealthsimple Buy ticket. Other brokers use the same ideas.

Type What Monday open does Beginner default for queued stock buys
Market buy Fill at the best available open price — no cap. If the market was closed when you sent it, that price is Monday’s open, which can be far from Friday. Brokers may cancel a queued market buy if the open would overdraw the account. [verified] as Wealthsimple’s stated market-order behaviour Do not queue when the market is closed [operator preference]
Limit buy Fill only at your limit or cheaper. If the open gaps above the limit, you get nothing (or a partial) Yes — default [operator preference]
Stop limit buy Waits until price rises through a stop, then becomes a limit. A breakout tool, not “buy my core over the weekend” No for ordinary long-term entries
Stop market buy After a stop, becomes a market order. Some apps disable it outside market hours No for ordinary long-term entries

Curriculum default [operator preference]: for stock/ETF orders sent when the market is closed, use Limit buy. Use the last official close as the buy-limit ceiling. If Monday opens at or below that price, you can fill. If it gaps up, you do not chase. Unfilled is acceptable; review after the session and queue again later if you still want the name.

Use day / this-session expiry, not a 90-day good-until-cancelled, until you are used to leftover working orders.

The same limit default is reasonable during the day for a slow accumulation sleeve. Market orders are for people who accept any print in a very liquid name while they are watching.

Options

Place options only in regular hours, after you can see a two-sided chain you would actually trade. Weekend stock tickets are not an options workflow. See operating checklists.

Not financial advice. Verify broker rules yourself.