The major currency pairs — EURUSD, GBPUSD, USDJPY and the rest — are among the most liquid markets on earth. For most of the day they are orderly and tight-spread. Then the calendar prints a number, and the picture changes in seconds. This is a neutral overview.
Sessions set the tempo
Forex trades around the clock on weekdays, but liquidity concentrates in sessions — Asian, London, US — with the London/US overlap usually most active. Spreads and movement differ by session.
The calendar is the main risk schedule
Scheduled releases — rate decisions, inflation prints, employment reports — are when majors move fastest and spreads widen most. The key point: these events are known in advance, which makes them filterable.
Why this matters for automated execution
- Slippage clusters around news. A news window lockout avoids opening new trades in that period.
- Spreads spike then normalize. A maximum spread filter prevents trading during the worst seconds.
- Volatility changes the right size.
A neutral, repeatable framework
Rather than guessing the next number, build automation that knows the calendar and pauses around high-impact events, checks the spread before every order, adapts size to current volatility, and respects sessions. This treats the calendar as a risk schedule, not a crystal ball. AeronPilot's news filter and spread controls hold back new orders around scheduled events and when spreads blow out.
This article is educational and neutral; it is not a market forecast or financial advice. Trading involves substantial risk.