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Christian Pichichero
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Jul 6, 2026
More info about @tradevodata
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Survivorship Bias vs Lookahead Bias: The Two Silent Backtest Killers
Christian Pichichero
Christian Pichichero
Christian Pichichero
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Jul 6
Survivorship Bias vs Lookahead Bias: The Two Silent Backtest Killers
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quant
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python
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finance
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datascience
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5 min read
Point-in-Time Fundamentals Data: What It Is, Why It Matters, and How to Choose
Christian Pichichero
Christian Pichichero
Christian Pichichero
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Jul 6
Point-in-Time Fundamentals Data: What It Is, Why It Matters, and How to Choose
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quant
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python
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finance
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datascience
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6 min read
Your Backtest Saw the Future: Lookahead Bias in Fundamental Data, Measured Across 313,562 Rows
Christian Pichichero
Christian Pichichero
Christian Pichichero
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Jul 6
Your Backtest Saw the Future: Lookahead Bias in Fundamental Data, Measured Across 313,562 Rows
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quant
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python
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finance
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datascience
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8 min read
How to Build a Point-in-Time Fundamentals Database from SEC EDGAR (and When Not To)
Christian Pichichero
Christian Pichichero
Christian Pichichero
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Jul 6
How to Build a Point-in-Time Fundamentals Database from SEC EDGAR (and When Not To)
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quant
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python
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finance
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datascience
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5 min read
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