London Session

The London session is the most active period in the global foreign exchange market, covering the trading hours when major financial institutions in the United Kingdom and continental Europe are open. It typically runs from 08:00 to 17:00 Greenwich Mean Time (GMT) and accounts for the largest share of daily forex volume, driven by high liquidity, tight spreads, and the participation of banks, hedge funds, and multinational corporations.

How It Works

When the London market opens, overlapping activity with the Asian session creates a surge in trade flow as liquidity from both regions combines. As the session progresses, the overlap with the New York session later in the day further boosts volume. During this time, currency pairs involving the euro, British pound, and Swiss franc experience the most price movement, while spreads on major pairs often reach their lowest levels. Traders monitor key economic releases from the UK and Eurozone—such as GDP, inflation, and central bank statements—because these events can trigger sharp, short‑term fluctuations.

Why It Matters

The London session’s high liquidity makes it attractive for both short‑term scalpers and longer‑term position traders who need reliable execution and minimal slippage. For example, a day trader focusing on the EUR/USD pair might enter a long position shortly after the London open, expecting the pair to benefit from positive Eurozone data released at 10:00 GMT. The tight spreads and deep order book during the London session allow the trader to execute the trade efficiently and capture the ensuing price move before the market quiets in the afternoon.