Trading Session
A period when a major financial center is actively trading.
Full Definition
Forex operates across three major trading sessions: Asian (centered in Tokyo, also including Sydney), European (centered in London, also including Frankfurt), and American (centered in New York). Each session has distinct characteristics that affect liquidity, spreads, and volatility. London is the most liquid, handling roughly 40 percent of global forex volume. New York sees high volatility particularly at the 8:30 AM Eastern data release window. Asian sessions are typically quieter but produce ranges in JPY and AUD pairs.
The most important trading windows are the session overlaps. The London/New York overlap from 8 AM to 12 PM Eastern handles the highest volume and volatility of the week because participants from both the European and US sessions are active simultaneously. The Tokyo/London overlap around 3 AM to 4 AM Eastern is smaller but provides meaningful activity in JPY and EUR pairs. The Sydney/Tokyo overlap is the quietest phase of the day.
For example, EUR/USD might trade with a 0.3 pip spread during the London/NY overlap when liquidity is deepest, but widen to 1.5 pips during the Asian session's thinnest hours around midnight Eastern. A trader who enters a scalping trade during the tight spread window and gets filled at 1.0850 faces a much lower execution cost than the same trade placed at 2 AM when spreads are wider. On 100 trades, spread differences of 1.2 pips compound to $1,200 on standard lot sizes.
In copy trading, session awareness affects execution quality. SteadyFlowFX's 9 algorithms trade across 8 currency pairs with some setups specifically concentrated around session overlaps for better execution. The verified Myfxbook 1.73 profit factor and 12 percent average monthly net return over 3 years reflect session-aware trading. Understanding trading sessions helps subscribers set expectations for when their account is most likely to see active trade execution and why certain hours produce more consistent results.