| Purpose | Systematically trade around scheduled economic events using pre-defined rules, historical patterns, and automated position management |
| Core Function | Integrates economic calendar data with trading strategies to automatically adjust positions, execute event-based trades, and manage risk around scheduled announcements |
Start with high-impact events only for your primary instruments. For ASX 200 index traders: RBA decisions, Federal Budget, Monthly CPI, Labour Force, and Fed decisions. For stock traders: add reporting dates for your stocks. As you get comfortable, expand to medium-impact events. Don't track everything - focus on what affects your trading.
This is a common challenge. Options: 1) Accept wider stops and higher risk for this event, 2) Reduce partially even at a loss - capital preservation matters, 3) Use index or single-stock options to hedge instead of closing. Going forward, avoid positions that are too large to manage around events.
Beginners should be cautious during reporting season (February and August). Individual stocks can move 5-15% on results - more than typical. Either: 1) Avoid stocks reporting that week, 2) Reduce positions in all stocks during peak season, 3) Focus on index trading which averages out individual results.
For after-hours events (Budget night, US data): 1) The impact shows as a gap next morning, 2) Reduce exposure before market close if you don't want overnight risk, 3) Use the SPI 200 overnight session and global markets to gauge likely opening, 4) Place pre-open orders if you want to trade the gap.
For beginners, avoidance is safer. You'll miss some profits but also avoid many losses. As you gain experience, you can start with post-event trading (waiting for settling, including the RBA's 3:30 PM press conference) before attempting pre-event positioning or immediate reactions.
Analyze historical data: look at how long initial volatility lasted for similar events. General guidelines: 30 minutes for standard events, 60 minutes for major events, and for the RBA wait through the 3:30 PM Governor press conference which often moves markets more than the 2:30 PM decision. You can also wait for a clear technical signal (break of initial range) rather than a fixed time.
No. Straddles only make sense when: 1) You expect a big move but don't know direction, 2) IV is not already extremely elevated (check the A-VIX), 3) Your breakeven (based on premium) is achievable based on historical moves. Many events don't justify straddle cost. Analyze cost vs typical move for each event type.
When events conflict (e.g. strong domestic jobs but weak China data): 1) Reduce overall exposure, 2) Wait for one narrative to dominate, 3) Trade smaller if you do trade, 4) Focus on the event with historically higher impact for your instrument.
Fade trades are risky but can work: 1) Wait for move to exceed historical norm (e.g. 2x average reaction), 2) Look for exhaustion signs (volume declining, reversal candles), 3) Enter small with tight stop, 4) Target 50% retracement, 5) Be quick to exit if trend continues. Not recommended for beginners.
In high-volatility regimes: events can cause larger moves, increase reduction percentages, widen stops more. In low-volatility regimes: events may have more impact relative to normal (breakout from range), be more cautious of complacency. Track how your strategies perform in different A-VIX environments.
Alternative approaches: 1) Use multiple consensus sources and average, 2) Build your own forecast model and use that as baseline, 3) Focus on magnitude of move rather than surprise direction, 4) Use market pricing (options IV, the ASX 30-Day Interbank Cash Rate Futures, bond yields) as implicit consensus, 5) Track forecast accuracy by source and weight accordingly.
It depends on your infrastructure and edge: Pre-event reduction and alerts can be safely automated. Post-event momentum with clear rules can be semi-automated. Complex decisions (fade vs continue) benefit from human judgment. Full automation requires robust risk controls and monitoring. Start semi-auto, move to full only with proven rules.
Monitor for shifts: 1) Rolling window analysis of recent vs historical reactions, 2) Track if hit rate is declining, 3) Look for structural changes (the RBA's 2024 move to 8 meetings and a Monetary Policy Board, the 2025 shift to monthly CPI as the primary measure, a new Governor or changed Fed framework), 4) Use adaptive models with higher weight to recent data, 5) Maintain ensemble of models to diversify. Be ready to pause strategies if regime unclear.
Optimal approach: 1) Quantify term structure inversion (near-term vs far-term IV spread), 2) Compare to historical distribution, 3) Enter calendar spreads when inversion is above median, 4) Size based on expected normalization, 5) Exit post-event as structure normalizes, 6) Have defined loss limits if underlying moves far. Track performance by spread entry level. Note XJO index options are European (no early assignment) while SPI 200 futures options and single-stock ETOs are American.
Practical ML approach: 1) Feature engineering: surprise magnitude, prior trend, A-VIX, event type, seasonality, 2) Target: classification (big move vs small) works better than regression, 3) Walk-forward validation essential, 4) Limited data means simpler models often work better (Random Forest, Gradient Boosting), 5) Use as one input, not sole decision, 6) Retrain regularly with new data. Watch for overfitting.
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