What is Pre-market?
In short
Trading before the regular session (typically 04:00–09:30 ET). Volume is thin and spreads wide, so price moves are often unreliable.
Learn more →Pre-market is the trading window before the regular session, typically 04:00–09:30 ET (in Tashkent 13:00–18:30 in summer, 14:00–19:30 in winter). Trading happens on electronic networks, and brokers often allow access only for a shorter slice (for example, from 07:00).
What pre-market is like
- Thin volume. There are few participants, so a handful of orders can move the price noticeably.
- Wide spreads. A one-cent spread in the regular session can widen to 20–50 cents pre-market.
- Unreliable prices. A pre-market high or low does not have to hold at the open — the opening price is often somewhere else.
- Order restrictions. Many brokers accept only limit orders, and stop orders do not trigger.
How to use it
Pre-market is mainly a source of information: it shows how the market is reacting to overnight earnings and news. A strong move on heavy pre-market volume hints at a gap at the open. Many traders mark the pre-market high and low and watch those levels during the day.
Charts have a setting to show or hide pre-market candles. When they are visible, random spikes can affect indicators and stops — so know which data your analysis is using.
Regular session is 09:30–16:00 ET. When the US changes its clocks, Tashkent times shift by an hour.
Example
A fictional stock closed yesterday at $40.00. Overnight the company announced good news. At 07:00 ET pre-market:
- Last price: $44.00 (+10%), on just 50,000 shares (normal daily volume is 5 million).
- Bid $43.80, ask $44.20 → a $0.40 spread (normally $0.01–0.02 in the regular session).
An excited trader buys 100 shares with a market order at the $44.20 ask = $4,420. At 09:30 the stock opens at $42.50. The loss at the open alone: (44.20 − 42.50) × 100 = $170.
A limit order and waiting for the open would have prevented this mistake.
Mistakes and tips
Use only limit orders pre-market: a market order can fill at a very poor price across a wide spread.
Do not treat a thin pre-market move as a guarantee for the open — wait for the first minutes of the session.
Your stop-loss may not work pre-market: learn your broker's rule, or you may take an unexpected loss when the stock opens below your stop.
Frequently asked questions
- Does the pre-market price hold at the open?
- There is no guarantee. Because volume is thin, the pre-market price can extend at the open or reverse completely.
- Does a stop-loss work in pre-market?
- At many brokers, no — stop orders activate in the regular session. This varies by broker, so read their rules.
Learn it in the Academy
This term is covered with hands-on examples and a quiz in these lessons of the interactive course.
- How the US market worksExchanges and brokers, sessions in Tashkent time, spread and liquidity, five order types with examples, T+1, costs and fractional shares.Open lesson · 12 min
- Earnings seasonCompanies report every quarter: the calendar, consensus, beats and misses, guidance, the conference call, the expected move, gaps and drift, and managing a position into a report.Open lesson · 13 min
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- Why you should trade on a demo account firstA demo account is a free practice ground: test your plan, find mistakes cheaply and build statistics. How to use it and where it differs from the real market.
- Position size and risk/reward: the 2 questions before every tradeHow many shares to buy and whether the trade is worth it — work out both before you enter. Formulas, a worked example and the most common mistakes.