Pre-Market and After-Hours Trading: Hours, How It Works and Risks
Pre-market trading is the buying and selling of US shares before the regular session opens at 09:30 ET. On Nasdaq it runs from 04:00 to 09:30 ET, which is 09:00 to 14:30 in UK winter time and 10:00 to 15:30 CET (Nasdaq).
After-hours trading follows the close, from 16:00 to 20:00 ET. Both windows let markets react to earnings and overnight news. Liquidity is usually thin and spreads are often wider. Prices can also jump on a handful of orders.
The information in this article is provided for educational purposes only and does not constitute financial advice. Consult a financial advisor before making investment decisions.
Table of Contents
- What is pre-market trading?
- What is after-hours trading?
- Extended trading hours by exchange
- Which assets move before the open?
- Why prices move pre-market
- How much trading happens outside regular hours?
- Benefits of extended-hours trading
- Risks of pre-market trading and after-hours trading
- How to read pre-market movers
- Pre-market moves and CFDs
- Frequently Asked Questions
What is pre-market trading?
The pre-market is the first part of the US trading day. Orders meet on electronic venues before the 09:30 ET opening cross sets the official open. Most of the activity arrives late. Pre-market volume and liquidity tend to build from 08:00 ET (Wikipedia).
Trading outside regular hours used to be limited to wealthy individuals and institutional investors such as mutual funds. Electronic communication networks (ECNs) later opened it to individual investors (Wikipedia).
| Feature | Pre-market | After-hours trading |
|---|---|---|
| US time (ET) | 04:00-09:30 | 16:00-20:00 |
| UK time (GMT, winter) | 09:00-14:30 | 21:00-01:00 (next day) |
| Central European Time (CET) | 10:00-15:30 | 22:00-02:00 (next day) |
| Busiest stretch | From 08:00 ET | Around results released after 16:00 ET |
| Typical news | Earnings before the open, US data at 08:30 ET | Earnings after the close |
| Order types at many brokers | Limit orders only | Limit orders only |
Source: Nasdaq, Wikipedia, Charles Schwab. UK and CET conversions by Admirals for November 2026.
What is after-hours trading?
After-hours trading is the session that follows the 16:00 ET close. Many US companies publish quarterly results just after the bell. The first reaction to those numbers therefore often happens here.
How does after-hours trading work?
Buyers and sellers are matched electronically, much as in the pre-market. Brokers often use narrower windows than the exchanges. Charles Schwab, for example, executes after-hours orders from 16:05 to 20:00 ET. Its pre-market orders run from 07:00 to 09:25 ET (Charles Schwab).
What time does after-hours trading end?
On Nasdaq the session ends at 20:00 ET. That is 01:00 the next morning in the UK and 02:00 CET.
| Session | ET | UK (GMT) | CET |
|---|---|---|---|
| Pre-market | 04:00-09:30 | 09:00-14:30 | 10:00-15:30 |
| Regular session | 09:30-16:00 | 14:30-21:00 | 15:30-22:00 |
| After-hours | 16:00-20:00 | 21:00-01:00 | 22:00-02:00 |
| Planned overnight session (from 6 December 2026) | 21:00-04:00 | 02:00-09:00 | 03:00-10:00 |
Source: Nasdaq 23/5 trading. Winter time, November 2026 to March 2027.
Extended trading hours by exchange
US venues offer the longest extended sessions. Germany also trades well into the evening. Other large markets mostly rely on short auctions around the main session.
| Exchange | Before the main session | Main session (local) | After the main session | Main session (ET) | Main session (CET) |
|---|---|---|---|---|---|
| Nasdaq (US) | 04:00-09:30 ET | 09:30-16:00 ET | 16:00-20:00 ET | 09:30-16:00 | 15:30-22:00 |
| Xetra (Germany) | 08:00-08:55 CET (Xetra Retail Service) | 09:00-17:30 CET | 17:30-22:00 CET (Xetra Retail Service) | 03:00-11:30 | 09:00-17:30 |
| Tradegate (Germany) | Single window | 07:30-22:00 CET | Single window | 01:30-16:00 | 07:30-22:00 |
| London Stock Exchange (UK) | Opening auction 07:50-08:00 UK | 08:00-16:30 UK | Closing auction 16:30-16:35 UK | 03:00-11:30 | 09:00-17:30 |
| Tokyo Stock Exchange (Japan) | Orders accepted from 08:00 JST | 09:00-11:30 and 12:30-15:30 JST | Session ends at 15:30 JST | 19:00-01:30 (previous day, with a break) | 01:00-07:30 (with a break) |
| Hong Kong Exchanges (HKEX) | Pre-opening 09:00-09:30 HKT | 09:30-12:00 and 13:00-16:00 HKT | Closing auction from 16:00 HKT | 20:30-03:00 (previous day, with a break) | 02:30-09:00 (with a break) |
Source: Nasdaq, Deutsche Boerse, Tradegate, The Right Trader, Japan Exchange Group, HKEX. Time conversions by Admirals, winter time.
Germany: Xetra and Tradegate
Xetra's extended retail trading runs until 22:00 CET (Deutsche Boerse). Tradegate trading hours run from 07:30 to 22:00 CET (Tradegate). Late German trading therefore overlaps with the whole US regular session.
London
The LSE trading hours cover one continuous session from 08:00 to 16:30 UK time. The exchange does not run a retail pre-market or after-hours window around it (The Right Trader). For a wider list of venues, see our guide to stock market trading hours.
Clock changes
The US moves its clocks forward on 14 March 2027. The UK and the EU follow on 28 March 2027 (timeanddate.com). For those two weeks the US pre-market starts at 08:00 UK time.
The planned Nasdaq overnight session
Nasdaq plans a new session from 21:00 to 04:00 ET, starting on Sunday 6 December 2026. Trading would then run from 21:00 ET on Sunday to 20:00 ET on Friday. A one-hour pause would follow each day at 20:00 ET (Nasdaq). The start date may still change.
Which assets move before the open?
Single shares get most of the attention. Several other markets trade around the clock on weekdays and shape the early mood.
Shares with fresh news
Companies with results or deal news usually lead the pre-market movers. Shares without news often barely trade before 09:30 ET.
Pre-market futures
E-mini S&P 500 futures trade on CME Globex from Sunday 18:00 to Friday 17:00 ET. Each day has a maintenance break from 17:00 to 18:00 ET (CME Group). Index levels are generally not calculated after hours (Charles Schwab). Futures are therefore the usual gauge of the expected open.
Forex and commodities
Currency pairs trade 24 hours a day on weekdays. Our guide to forex market hours explains the sessions. Oil and gold also trade for most of the day, so early moves in them can feed into share prices.
| Asset | Trades while US cash shares are closed? | Common pre-open gauge |
|---|---|---|
| US single shares | In the extended sessions | Pre-market price and volume |
| US index futures | Almost 24 hours on weekdays | E-mini S&P 500 and Nasdaq 100 futures |
| Index CFDs | Depends on the provider | The CFD price |
| Forex | 24 hours on weekdays | Major pairs such as EUR/USD |
| Oil and gold | Most of the day on weekdays | Futures and CFD prices |
Source: CME Group, Charles Schwab.
Why prices move pre-market
Prices move outside regular hours when new information lands while the main session is shut.
Earnings and guidance
Results are often released before the open or after the close. Investors compare earnings per share with forecasts. Guidance for the next quarter often matters as much as the headline numbers. NVIDIA plans to publish its third-quarter results on 17 November 2026 at about 13:20 PT, which is 16:20 ET. Its call follows at 17:00 ET, so the first reaction falls in the after-hours session (NVIDIA).
US data at 08:30 ET
Key US data such as the jobs report and inflation figures come out at 08:30 ET, inside the pre-market. That is 13:30 in the UK in winter. The economic calendar lists upcoming releases. Our introduction to fundamental analysis explains why these numbers matter.
| Date | Event | ET | UK |
|---|---|---|---|
| Tue 10 Nov 2026 | US CPI for October | 08:30 | 13:30 |
| Fri 13 Nov 2026 | US PPI for October | 08:30 | 13:30 |
| Tue 17 Nov 2026 | NVIDIA Q3 results (after the close) | About 16:20 | About 21:20 |
| Thu 26 Nov 2026 | Thanksgiving, US stock market closed | Closed | Closed |
| Fri 27 Nov 2026 | Early close | 13:00 | 18:00 |
| Fri 4 Dec 2026 | US jobs report for November | 08:30 | 13:30 |
| Thu 10 Dec 2026 | US CPI for November | 08:30 | 13:30 |
Source: BLS November 2026, BLS December 2026, NVIDIA, Nasdaq holiday schedule. Dates can change.
Overnight news
Asian and European sessions move while New York sleeps. Bond yields and oil prices do too. Mergers and rating changes are also often released outside regular hours.
How much trading happens outside regular hours?
Extended hours make up a growing share of US trading. Activity has shifted sharply towards the morning.
| Measure | Figure | Period |
|---|---|---|
| Extended-hours share of US equity volume | About 5% | 2019 |
| Extended-hours share of US equity volume | Over 11%, more than 1.7 billion shares a day | Early 2025 |
| Pre-market share of extended-hours volume | More than 55% | Early 2025 |
| After-hours share of extended-hours volume | About 83% in 2019, roughly 45% later | 2019 to early 2025 |
| Growth in pre-market volume since 2019 | Roughly 15-fold | To early 2025 |
| Growth in after-hours volume since 2019 | About 2.3-fold | To early 2025 |
Source: Charles Schwab, citing New York Stock Exchange data. Past performance is not a reliable indicator of future results.
A pre-market price shows where a small number of buyers and sellers met. The opening cross at 09:30 ET gathers far more orders and can set a very different price.
Benefits of extended-hours trading
Extended sessions give traders more time to act. Each benefit comes with a cost, shown in the second column.
| Benefits | Drawbacks |
|---|---|
| Reacting to earnings soon after their release | First reactions are often sharp and can reverse |
| Trading at times that suit UK and European working hours | Fewer participants and less liquidity |
| Responding to overnight news before the open | Wider spreads raise trading costs |
| Seeing early price levels ahead of the session | Pre-market prices may differ from the official open |
Source: Charles Schwab.
Risks of pre-market trading and after-hours trading
The risks below apply to both sessions.
Thin liquidity
Fewer shares change hands, so a single order can move the price more than it would during the day. Orders may not be executed at all.
Wide bid-ask spreads
With fewer buyers and sellers, the gap between the bid and the ask is usually larger. That raises the cost of entering and leaving a trade.
Limit orders only in extended hours
Many brokers accept only limit orders in extended hours. Schwab, for example, does not accept market or stop orders in these sessions (Charles Schwab). Limit orders may fill in part, or stay unfilled when the session ends.
Gaps and reversals at the open
Regular-session traders arrive at 09:30 ET and can reverse a thin pre-market move. For the SPY ETF, the correlation between the opening gap and the rest of the day's return was just 0.01 from 1993 to March 2025 (CXO Advisory). At index level, a gap said little about what came next.
Competing with institutional investors
Large funds have research teams and fast systems. Individual traders may react later to the same headline.
How to read pre-market movers
A large percentage move on a movers list is only a starting point. Traders often check a few things before giving it weight.
- Traders often compare the gap with the previous close in percentage terms.
- They check pre-market volume against the share's usual volume.
- They look for a clear catalyst behind the move.
- They watch whether the price holds the gap in the first 15 to 30 minutes after 09:30 ET.
- They keep in mind that volatility tends to be highest near the open.
| Signal | Stronger reading | Weaker reading |
|---|---|---|
| Gap size | Large move with a clear reason | Large move with unclear news |
| Volume | Several times the usual pre-market volume | Only a few thousand shares traded |
| Catalyst | Guidance change or major data surprise | Rumour or stale news |
| After 09:30 ET | Price holds the gap on regular-session volume | Price slides back towards the prior close |
Illustrative checklist only. It does not predict how any share will trade.
Our article on market volatility covers why the open is often the most active part of the day.
Pre-market moves and CFDs
At Admirals, CFDs on shares of US companies trade during the regular US session only. The NVIDIA CFD, for example, is scheduled from 16:35 to 23:00 EET, which is 09:35 to 16:00 ET. Positions cannot be opened or closed in the pre-market or after-hours windows. A position held overnight is therefore exposed to the opening gap.
CFDs on indices follow their own schedules. Trading hours for each instrument are listed in the contract specifications.
Stop-losses and gap risk
A stop-loss order may help to manage risk. It cannot stop a gap. If the market opens beyond the stop level, the order is executed at the next available price, which may be much worse.
| Scenario | Typical trigger | Possible effect on a share CFD held overnight |
|---|---|---|
| Gap holds | Strong results and heavy volume | The position opens with a large gain or loss |
| Gap fades | Mixed news and thin volume | An early move reverses after 09:30 ET |
| Gap through a stop | Price opens beyond the stop level | The stop fills at a worse price than planned |
Illustrative scenarios only. Forecasts are not a reliable indicator of future performance.
A demo account uses virtual funds, so traders can see how gaps affect orders. Results may differ from live trading.
CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money.
Frequently Asked Questions
What time does pre-market trading start?
On Nasdaq, US pre-market trading starts at 04:00 ET, which is 09:00 in UK winter time and 10:00 CET.
Can anyone trade in the pre-market?
Access depends on the broker. Many brokers offer extended hours on shares, usually for limit orders within shorter windows.
Why are pre-market prices different from the open?
The official open comes from the 09:30 ET opening cross, which gathers far more orders than the thin pre-market.
What are pre-market movers?
Pre-market movers are shares with the largest percentage changes before the open. Results and company news usually drive them.
Is after-hours trading risky?
It carries extra risk. Thin liquidity and wide spreads can cause sharp price jumps, and orders may go unfilled.
What time does after-hours trading end?
US after-hours trading on Nasdaq ends at 20:00 ET, which is 01:00 the next morning in UK winter time.
Can you trade pre-market with CFDs at Admirals?
At Admirals, CFDs on US shares trade during regular hours only. Other instruments' hours are in the contract specifications.
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Sources
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- US and Nordic Stock Market Schedule, Nasdaq, accessed 9 November 2026.
- Extended-hours trading, Wikipedia, accessed 9 November 2026.
- How Does After-Hours Trading Work?, Charles Schwab, accessed 9 November 2026.
- Trading Calendar and Trading Hours, Deutsche Boerse, accessed 9 November 2026.
- About Tradegate, Tradegate BSX, accessed 9 November 2026.
- LSE trading hours, The Right Trader, accessed 9 November 2026.
- Trading Hours, Japan Exchange Group, accessed 9 November 2026.
- Securities Market Trading Hours, HKEX, accessed 9 November 2026.
- Daylight Saving Time, First Half of 2027, timeanddate.com, accessed 9 November 2026.
- E-mini S&P 500 Futures Contract Specs, CME Group, accessed 9 November 2026.
- NVIDIA Sets Conference Call for Third-Quarter Financial Results, NVIDIA, accessed 9 November 2026.
- Schedule of Selected Releases for November 2026, BLS, accessed 9 November 2026.
- Schedule of Selected Releases for December 2026, BLS, accessed 9 November 2026.
- Gap Reversal or Continuation?, CXO Advisory, accessed 9 November 2026.
