Why Trading Bots Should Pause Around High-Impact News

What news does to execution

In the seconds around a high-impact release - non-farm payrolls, CPI, a central bank decision - three things happen at once: spreads widen from one pip to ten or more, liquidity evaporates so orders fill far from their intended price, and price can gap straight through stop losses. A strategy with a genuine edge in normal conditions has no edge in that environment; it has exposure.

Manual traders instinctively sit out the release. A bot does not know the calendar exists - unless a filter tells it.

How the news filter works

The filter consults an economic calendar and pauses signal execution in a window around scheduled events: a configurable number of minutes before the release and after it. Signals arriving inside the window are skipped and logged with the reason, so your feed shows exactly what the filter declined and why. An optional high-impact-only mode ignores minor releases and pauses only for the market movers.

Configuring the window

Fifteen minutes before and after high-impact events is a sensible default: wide enough to dodge the pre-positioning chop and the post-release whipsaw, narrow enough that the strategy still trades most of the day. Scalpers on major pairs may want more; swing systems holding for days can often run a narrower window since a single entry skipped matters less than a scalper missing its whole session.

One subtlety: the filter blocks new executions, it does not close open positions. If holding through news is unacceptable for your strategy, close before the window by design - a scheduled close-all alert before major releases pairs naturally with the filter.

The cost-benefit reality

Yes, the filter occasionally skips a trade that would have won big on the news spike. The arithmetic still favors filtering for most systems: news winners are lottery tickets with terrible fills, while news losers arrive with widened spreads, slippage beyond the stop, and occasionally a gap that turns a 1% risk into 3%. Strategies specifically built to trade releases are the exception - everything else does better asleep during them.