How to Read an Economic Calendar

An economic calendar lists upcoming data releases and events that move currency prices. Most trading platforms include one, and standalone calendars from Investing.com, ForexFactory and FxStreet are widely used. But many retail traders look at these calendars without fully understanding what the columns mean — particularly the difference between consensus, actual and prior, which is where the real market signal lives.

The Four Key Columns

Time (SAST): When the data releases. All times in the FX Event Calendar are displayed in SAST (UTC+2). Check the timezone setting on any external calendar you use — some default to GMT or EST.

Event: The name of the release. Hovering over the event name on most calendars reveals a brief description of what the data measures.

Impact: Colour-coded indicator of expected market volatility — typically Red (high), Orange (medium), or Yellow (low). High-impact events are the ones that can move USD/ZAR and other ZAR-linked pairs meaningfully in the 30 minutes following release. Low-impact events rarely cause significant moves unless the result is dramatically unexpected.

Consensus (Forecast): The median estimate of economists and analysts surveyed before the release. This is the number the market has already priced in. If everyone expects US employment to rise by 200,000 and the actual number is 200,000, the price reaction is usually muted — the market already positioned for it.

Previous: The prior period's reported figure. Note that this figure is sometimes revised when the new data is published — upward or downward revisions to the previous reading can themselves move markets.

Actual: The number released by the official body. Only appears after the release.

The Surprise — the Only Number That Matters

The market-moving variable is not the actual figure in isolation. It is the surprise: the difference between actual and consensus.

No surprise → muted reaction

Actual = Consensus → price has already moved in anticipation. The release confirms expectations. Volatility is low.

Positive surprise (actual better than expected) → currency strengthens

For US data: actual jobs > consensus jobs → USD stronger → USD/ZAR may rise (rand weakens)

For SA data: actual SARB decision more hawkish than expected → ZAR stronger → USD/ZAR may fall

Negative surprise (actual worse than expected) → currency weakens

For US data: actual jobs < consensus jobs → USD weaker → USD/ZAR may fall (rand strengthens)

This is why experienced traders watch the consensus figure as carefully as they watch the actual — the consensus sets the expectations that determine whether the actual is a surprise.

The Revision Problem

Many SA traders focus on the current month's release and ignore the revision to the prior month's figure. This is a mistake.

Example: US NFP releases 250,000 new jobs (consensus: 200,000 — a significant positive surprise). But the prior month's figure was revised DOWN from 180,000 to 80,000. The net impact is 250,000 − 100,000 (revision) = only 150,000 net new jobs relative to previous estimates — a much weaker picture than the headline suggests.

Revisions can flip the apparent direction of a release. Always check the prior revision column alongside the headline number.

Impact Levels: What to Actually Trade Around

High-impact (red): Position before the release or after — never during. The 5-minute window around a high-impact release sees the widest spreads, the fastest price movement, and the highest probability of a stop-hunt (price spiking through stop-loss levels before reversing). Experienced traders either:

• Close or reduce positions before the release
• Wait for the initial spike to complete and the direction to confirm before entering

Medium-impact (orange): Less likely to cause extreme volatility but worth monitoring if you have open ZAR positions. A medium-impact surprise during the London session can add 50–100 pips of directional movement.

Low-impact (yellow): Generally safe to ignore for intraday traders unless there is a dramatic outlier result. However, during thin Asian sessions, even a low-impact release can move ZAR pairs 30–50 pips on thin liquidity.

Currency Column: Which Pairs to Watch

Each event has an associated currency — the currency most directly affected by that data:

When multiple currencies are affected simultaneously — for example, a US data release during the London session — ZAR pairs can receive directional input from both the USD and the broader risk-on/risk-off response.

The SA Economic Calendar: Key Releases to Calendar

Beyond the major international events, track these SA-specific dates:

These events do not all appear prominently on international economic calendars — you may need to check Stats SA (statssa.gov.za) and the SARB directly for exact release dates.

This is general information only, not financial advice. Economic data releases and market reactions are not predictable. Trading forex carries a high level of risk and losses can exceed your initial deposit.