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By mistake, such information was used in the test which was not available to us at that time.
Published by The Retail Trader · JUL 31, 2026 · Indicators
Look-Ahead Bias — Accidentally using information in a test that was not available at the time.
This term comes under Indicators, in the "SETTINGS and TRAPS" section. The indicator is not wrong, its use is wrong. Here are the words that describe our mistake:
Other terms in this group — understanding them together is more useful:
• Default Settings
• Optimisation
• Curve Fitting / Over-Optimisation
• Source
• Offset
• Multi-Timeframe Indicator
• Indicator Alert
• Signal Lag
• Indicator Stacking
• Clean Chart
To read the entire group and all its examples in one place, see the journal "INDICATORS: FORMULA TOOLS" - this term has been taken from there.
This entry is for educational purposes only and is not a recommendation to buy or sell. Exchanges change charges, margins, lot sizes and expiry rules from time to time, so verify any figures with your broker or exchange.