Crypto Backtesting Data Quality Checklist: Missing Candles, Bad Wicks, and Symbol Drift
A practical data quality checklist for crypto backtests: missing candles, bad ticks, exchange differences, symbol changes, and how these issues create fake edges.
Vantixs Team
Trading Education
Crypto Backtesting Data Quality Checklist: Missing Candles, Bad Wicks, and Symbol Drift
Bad data creates fake performance.
Check for
- missing/duplicate timestamps
- abnormal wicks (bad ticks)
- inconsistent OHLC (high < low)
- symbol drift (renames/rebrands)
- venue differences (spot vs perp)
Next reads
- Backtesting hub: /blog/crypto-backtesting-complete-guide-2026
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