News Trading: Volatility, Slippage and Event Risk

News trading explained with its costs in front: why the spread widens and stops slip at exactly the moment of the move, why the first reaction often reverses, what a straddle really costs, and why most traders use the calendar defensively instead.

News trading is taking a position around a scheduled economic release to capture the move that follows. The logic is sound — the largest scheduled moves happen at known times — and the execution conditions are the worst available anywhere in the market. This guide puts the costs in front, because they are what decide whether the approach is viable for a retail account.

Key Takeaways

• The move you are trying to capture happens in the seconds when spreads are widest and fills are worst.
• The surprise moves the price, not the number. And the surprise is unforecastable by definition.
• The first reaction is frequently reversed within twenty minutes.
• Most experienced traders use the calendar to reduce exposure, not to seek it.

Why the Move Happens

Markets price the expected outcome in advance. When the actual number differs from consensus, everything positioned on the outcomes that did not happen must unwind at once. That unwinding is the move. See why markets move before economic data is released and how markets price in expectations.

The largest and most reliable events: central bank rate decisions and their statements, US Nonfarm Payrolls, US CPI. See how to use an economic calendar.

The Three Approaches

Directional, before the release. A position taken on a view about the surprise. This is a forecast of something economists collectively could not forecast, held through the worst execution window of the day.

Straddle. Pending orders placed above and below the price so that whichever way it breaks, one fills. The problems are structural: both orders are stop orders, so both fill at the next available price after trigger; in a sharp move the fill can be far beyond the level; and when the first reaction reverses, the second order can fill too, leaving two losing positions. The instrument's Stops level may also prevent orders being placed close enough to be useful.

After the release. Waiting for the first minutes to pass, letting spreads normalise and the initial reaction resolve, then trading the direction that holds. Slower, later, and the only version with tolerable execution conditions.

The Execution Problem

The move you want is in row two. See slippage and gap risk — around a release, price can move without trading at intermediate levels, and no order type fills inside that jump.

Worked Example: A Straddle Through NFP

EURUSD at 1.0850. Buy Stop at 1.0870, Sell Stop at 1.0830, 20 pips either side. 0.10 lot, stops 30 pips from each entry.

Scenario B is not unusual — it is the standard shape of a reaction that reverses. And note that in Scenario A, 8 pips of the 50-pip move went to slippage before the trade began.

(Illustrative. Excludes spread.)

Potential Advantages

• The timing is known in advance, unlike almost any other large move.
• Moves can be large relative to normal daily ranges.
• No requirement to hold overnight.

Key Risks

Slippage at entry and exit. The defining risk. It affects the entry, the stop and any target.

Spread widening. A few-pip edge disappears inside a widened spread.

The reversal. The first move is often unwound once revisions and components are read — see the worked example in what is nonfarm payrolls, where the same headline produced opposite reactions depending on the wage component.

Double stop-out on a straddle.

Size. A position sized for normal conditions is mis-sized for a release. Position sizing for an event means sizing for the fill you might get, not the level you set.

Stops level restrictions. The minimum stop distance in the contract specification can widen in volatile conditions, and pending orders too close to price are rejected.

False Signals

The first tick, in either direction. A break that runs 40 pips and returns in ten minutes. A headline that beats while the component that matters misses.

The Defensive Use

Most experienced retail traders use the calendar the other way: to know when not to hold a normal-sized position. Checking both sides of an instrument for scheduled events before entry, and reducing size or standing aside when one falls inside the intended holding period, is the same information used to avoid the execution window rather than to enter it. That is not a lesser approach; for most accounts it is the one the arithmetic supports.

Can you make money trading the news?

The approach has a logic. Whether it works for a given trader depends on execution quality, size and the ability to accept fills far from intended levels. The costs described above apply to everyone.

Is a straddle a safe way to trade news?

No. Both legs are stop orders exposed to slippage, and a two-way spike can trigger and stop both.

How long should I wait after a release?

Long enough for spreads to normalise and the first reaction to resolve — commonly fifteen to thirty minutes. Waiting removes the largest part of the move and most of the execution risk.

Which releases move markets most?

Central bank decisions and their statements, US Nonfarm Payrolls, and US CPI when inflation is the market's focus.

Should beginners trade news?

The execution conditions are the worst of any window, and the outcome depends more on fills than on analysis. Using the calendar defensively is the more common starting point.

Related Guides

Trading strategies · How to use an economic calendar · Why markets move before economic data · Slippage · Gap risk · Position sizing