News trading
Event and interpretation
Trading around releases can respond to economic data, policy decisions or statements. Compare the result with expectations, details and revisions rather than only the previous number. The first move can reverse. A calendar gives the scheduled time, while distribution and reading delays form part of the actual execution process.
Risk mechanics
Some events can increase volatility, spread, rejections and slippage. They need not always reach the same level or mean all liquidity disappears. Pending orders on both sides can trigger sequentially and produce losses. Define their handling and total exposure limits rather than assume a straddle captures a cost-free directional move.
Active and defensive policies
Possible rules trade the reaction, retain controlled exposure or temporarily avoid trading. These are different policies depending on system and product. Testing needs release information available at the time, correct timestamps and realistic quotations. Later revised data cannot be silently treated as historical signals, and a simple OHLC test may miss the execution conditions.