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Trading Foundations
Data Quality and Backtesting Limits
Learn why backtesting can mislead learners when data is poor, costs are missing, rules are unclear, or results are overfitted to the past.
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Key terms
trading-foundationsdata-quality-and-backtesting-limitsexpertdata-qualitybacktestingbacktesting-limitsoverfittinglookahead-biassurvivorship-biassample-sizespreadslippagetrading-costsrisk-managementperformance-trackingstrategy-developmenttrading-systemreview-labdemo-practiceeducational-only