Trading during news: Why do market conditions change?
Trading during news differs from trading in quiet times; releases like employment or inflation figures can quickly shift traders' expectations. But the reaction is not determined by the headline alone: prior expectations, how the result differs from them, and liquidity at the moment of release matter too. Therefore price may move sharply, drift, or not react as some traders expect.
The economic calendar on the site helps you prepare for this timing. It shows the currency, event time UTC, impact level, and when available, the forecast and prior figures. This information is not the actual announcement result nor a guarantee of market direction; its job is to highlight events worth watching and compare the upcoming outcome with what the market expected.
How wide can the spread become during news?
Spread is the difference between the bid and ask prices. Around high-impact news, price moves can accelerate and liquidity may be thinner at some prices. Price providers may widen spreads in these conditions, making entering or exiting more costly than before the release. Execution conditions can vary across instruments and platforms, so do not assume spreads stay fixed at news time.
Widening spreads alone do not mean the price will rise or fall. It indicates that order execution may be less favorable and that stop-loss or entry orders may be affected differently in a calm market. Review instrument specifications and execution conditions, and verify the available price before placing the order rather than relying on a price seen before the data release.
Slippage: why execution price may differ?
Slippage occurs when an order is filled at a price different from the requested or visible price at submission. In fast markets, there may not be enough liquidity at the specified price, so execution moves to the next available price. The difference can work for or against the trader; you cannot know its direction or size in advance from the calendar alone.
Before the news, think about the type of order and execution risks, not just the direction expectation. Orders requiring fast execution may be affected by price changes, while a limit order may not fill if the market does not reach its price. There is no way to eliminate slippage risk entirely, and protection settings and execution conditions depend on the instrument and the platform. If you are not prepared for the possibility of a different execution price, waiting for the movement to calm down may be a option worth considering.
The first counter-move is not a final judgment.
The price may move first against what a surface reading implies, then reverse or continue in the same direction. Possible reasons include that the market had already priced in expectations, or details were mixed, or orders and liquidity caused a fast move before a clearer direction emerged. These are general possibilities, not a definite description of a specific earnings event.
Rather than chasing the first candle, watch whether the price holds its move after the announcement and how execution conditions change. If the scenario is based on a better-than-expected outcome, a weak price after the release may invalidate that scenario. If it’s built on a negative reaction, a return of price to its levels and stability may weaken it. The calendar does not specify price levels; any technical levels require the instrument’s chart data.
Reading upcoming economic calendar events
According to the calendar shown dated October 15, 2026, high-impact events occur at various times in UTC. At 00:30, Australian employment data: expected +19.6K vs +39.5K prior, unemployment rate expected 4.6% vs 4.6% prior. At 06:00, UK monthly GDP is released, expected -0.1% vs +0.4% prior. These are forecast numbers and prior readings; the actual results are not included.
The calendar focuses on several high-impact US releases at 12:30 UTC: core PPI monthly 0.3% vs 0.2% prior; core Retail Sales 0.6% vs 1.4%; PPI monthly 0.6% vs 0.4%; Retail Sales 0.3% vs 1.2%. The clustering of these data means a trader may need to monitor more than one reading, not reduce market response to a single number. The calendar does not list an NFP or a rate decision, so their timing or result cannot be determined here.
A practical plan before and after the announcement
- Open the calendar, check the event time in UTC and its impact level, then review the forecast and prior if available.
- Before trading, set your acceptable risk and ensure you understand order types and spread on your instrument.
- When the news is released, don’t assume the first move is the final direction; wait for price response and execution conditions to clarify.
- Reassess the scenario if price deviates from your expectation, and predefine what would invalidate your idea instead of widening risk to chase the market.
The calendar is a readiness tool, not a buy or sell signal. Trading during news may involve wider spreads, slippage, and rapid volatility; actual results may differ from expectations. This content is analysis, not investment advice.
Key points
- The spread can widen and slippage can occur around news; you cannot infer their direction or size from the calendar alone.
- The first counter-move may reverse market expectations and liquidity and is not necessarily a final trend.
- Use event time and expectations in the calendar to prepare, and pre-define what would invalidate your scenario.
