How to Read an Economic Calendar: Actual, Forecast, Previous

Key takeaways

• An economic calendar lists scheduled releases with their time, the actual figure, the forecast or consensus, the previous value and often an impact rating.
• Markets react mainly to the gap between actual and forecast, and to revisions of earlier figures, rather than to the level of the number.
• Forecasts and impact ratings come from calendar providers and data vendors, not from the official agencies; the agency's own release is the reference.
• Check units, periods and seasonal adjustment, and watch daylight saving changes, which shift release times by an hour for a few weeks each year.
• Use the calendar to plan exposure before the week starts: it tells you when risk is scheduled, not which way prices will move.

What an economic calendar is: the short answer

An economic calendar is a schedule of upcoming economic data releases, central bank decisions and other planned events, showing the time of each release and, once it is out, the published figure. Most calendars use the same core columns for every event: the actual figure, the forecast or consensus, the previous value, sometimes a revised previous value, and an impact rating.

Reading one well means knowing which of those numbers carries the news. Markets have already priced the forecast, so what moves prices at the release is mainly the gap between the actual figure and expectations, along with any revision to earlier data. The calendar tells you when risk is scheduled; it does not tell you which way prices will go.

The columns: actual, forecast, previous and revised

The actual figure is the only official number on the line. It comes from the agency that produces the statistic, such as the Bureau of Labor Statistics (BLS) for consumer prices and employment, or the Bureau of Economic Analysis (BEA) for gross domestic product. Calendar providers copy it within seconds of publication and small transcription errors are possible, so the agency's own release remains the reference.

The forecast column is not official. It is usually the median or average of forecasts collected from economists by a news agency or data vendor shortly before the release. Different calendars can therefore show slightly different forecasts for the same event, and late changes in economists' views are not always reflected.

The previous column shows the last value for the prior period. When the agency revises that value at the time of the new release, many calendars show the revised figure next to it or highlight the change. A revision can matter as much as the new number: a headline in line with forecasts combined with a large downward revision to the previous month tells a different story from the headline alone.

Reading a surprise: actual versus expectations

Because markets have already priced the consensus, the reaction depends on the surprise: how far the actual figure lands from expectations, judged against the usual size of surprises for that indicator. A miss of a few tenths can be large for one series and routine for another, so it helps to know the typical range of past surprises for the indicators that matter to your markets.

The direction of the reaction depends on what the data mean for policy and growth at that moment. A stronger-than-expected reading can support a currency if it raises the expected path of interest rates, while it can weigh on stock index futures if markets fear tighter policy. When several figures come out together, as with employment and wages or headline and core inflation, the components can point in different directions, and the market tends to follow the one it considers most important at the time.

Expectations are not limited to the published consensus. Interest rate futures, options and positioning also reflect what traders expect, and the market sometimes leans toward a different outcome than the economists' median. That is one reason why a release that seems to match the forecast can still move prices.

• Compare the actual figure with the forecast first, then check revisions to previous periods.
• Look at the components that matter for policy, such as core inflation or wages.
• Judge the size of the surprise against the usual range for that indicator.

Impact ratings on an economic calendar: a filter, not a rule

Most calendars rate events as low, medium or high impact, often with colours or icons. These ratings are assigned by the calendar provider from experience of past market reactions; they are not an official classification by the agencies that publish the data.

Treat the rating as a starting point. Central bank decisions, inflation reports and the US employment report are usually rated high because they directly change interest rate expectations. But the weight of an indicator shifts with the economic situation: when inflation is the main concern, price data dominate; when the labour market is in focus, employment data move markets more. A release rated medium can also produce a large move if it surprises strongly or if the market is positioned heavily one way.

Rate decisions deserve a separate note. The Federal Open Market Committee holds eight regularly scheduled meetings a year, and the Federal Reserve releases the minutes of each one three weeks after the policy decision. The statement, the press conference and, later, the minutes are distinct events on the calendar, and each can move markets. Our article on central bank interest rates explains why.

Units, periods and seasonal adjustment

Two releases with similar-looking numbers can measure very different things. Check the unit and the period before comparing the actual figure with the forecast.

• Month-over-month or year-over-year: inflation is quoted both ways; the monthly change carries the fresh information, while the annual change also depends on what happened a year earlier.
• Levels or changes: the employment report headline is the change in the number of payroll jobs, not the total number of jobs.
• Annual rates: the BEA reports quarterly GDP at annual rates unless otherwise specified, so a quarterly growth figure is expressed as if it continued for a full year.
• Seasonal adjustment: most headline figures are seasonally adjusted to remove regular yearly patterns such as holidays or weather; unadjusted figures exist but are not comparable with them.
• Survey indexes: purchasing managers' and confidence surveys are index readings, compared with their own neutral level or history rather than read as a percentage change.

Estimates also come in stages. The BEA estimates GDP three times for each quarter, starting with an advance estimate about a month after the quarter ends, and the second and third estimates incorporate source data that were not available before. The BLS routinely revises the two previous months of payroll employment when it publishes a new month. A line on the calendar therefore often refers to a figure that will be revised later.

Time zones and daylight saving time

Every calendar lets you choose a display time zone. Major US data from the BLS and the BEA are typically published at 8:30 a.m. Eastern Time, before the regular US stock market session; at that hour futures and currencies are already trading, so they react first.

Daylight saving time creates a recurring trap. In the United States, daylight saving time begins on the second Sunday of March and ends on the first Sunday of November, according to NIST. In the European Union, summer time begins on the last Sunday of March and ends on the last Sunday of October. For a few weeks each spring and autumn, the usual gap between New York and European cities is one hour shorter, and a release you are used to seeing at a given local time arrives an hour earlier.

Set the calendar to your own time zone, check that your trading platform uses the same setting, and confirm important release times on the agency's own schedule. Agencies publish their calendars in advance: the BLS lists its releases with all times in Eastern Time, and the BEA, the Federal Reserve and the European Central Bank publish their own schedules.

Building a weekly routine

A calendar is most useful when you read it before the week starts, not minutes before a release. Our guides to US inflation reports and to the US employment report describe how these two releases are built and why they move futures and forex.

• Mark the high-impact events for the markets you trade, including central bank decisions and scheduled speeches by policymakers.
• Note the consensus and the previous value, and what a surprise in either direction would imply for interest rate expectations.
• Decide in advance whether you will be flat, hold a reduced position or wait for the first reaction to settle.
• Check whether several releases cluster in the same hour; their effects can add up or cancel out.
• After the release, read the official report rather than relying on the calendar line alone.

Trading around scheduled releases

Scheduled releases concentrate risk into a few seconds. In the minutes before the figure, liquidity often thins as participants pull resting orders; at the release, prices can jump several ticks at once, spreads widen in spot forex and stop orders may be filled far from their level. The first move is sometimes partly reversed once traders read the details.

None of this predicts direction, but it changes how much risk a position carries. If you hold a futures position through a high-impact release, size it from a stop wide enough for the volatility and include realistic slippage. The position size calculator shows how many contracts still fit your risk per trade when the stop is wider, and our guide to futures risk management covers daily limits and gap risk.

Put it into practice

• Economic calendarThis week’s releases, with FOMC dates and COT publication days.
• Fed rate monitorRate decision probabilities for the next FOMC meetings.

Frequently asked questions

Sources

1. E-mini S&P 500 (ES) : value of one tick per contract — CME Group
2. Micro E-mini S&P 500 (MES) : value of one tick per contract — CME Group
3. Schedule of Selected Releases — U.S. Bureau of Labor Statistics
4. Gross Domestic Product: what to know — U.S. Bureau of Economic Analysis
5. Employment Situation Technical Note — U.S. Bureau of Labor Statistics
6. Meeting calendars and information — Federal Reserve Board
7. Daylight Saving Time Rules — NIST
8. Directive 2000/84/EC on summer-time arrangements — EUR-Lex (European Union)

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