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Christian Pichichero

Building Tradevo Data: point-in-time fundamentals that can't lie to your backtest. I write about lookahead bias and clean financial data.

Location United States Joined Joined on  Email address christian@tradevo.co Personal website https://tradevodata.com github website
Why the Same Fundamental Lives Under Different XBRL Tags in SEC EDGAR
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Why the Same Fundamental Lives Under Different XBRL Tags in SEC EDGAR

#quant #python #finance #datascience
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6 min read
SEC 10-K Filing Deadline Data: The Structural Reason Fundamentals Lag Weeks Behind
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SEC 10-K Filing Deadline Data: The Structural Reason Fundamentals Lag Weeks Behind

#quant #python #finance #datascience
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4 min read
We Shipped a 10x Error on General Mills. Here's the Bug, and the Check That Would Have Caught It.
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We Shipped a 10x Error on General Mills. Here's the Bug, and the Check That Would Have Caught It.

#quant #python #finance #datascience
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5 min read
As-Reported vs Restated Financial Data: Why the Difference Matters for Backtesting
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As-Reported vs Restated Financial Data: Why the Difference Matters for Backtesting

#quant #python #finance #datascience
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5 min read
How to Detect Lookahead Bias in a Backtest: A Practical Checklist
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How to Detect Lookahead Bias in a Backtest: A Practical Checklist

#quant #python #finance #datascience
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5 min read
Survivorship Bias vs Lookahead Bias: The Two Silent Backtest Killers
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Survivorship Bias vs Lookahead Bias: The Two Silent Backtest Killers

#quant #python #finance #datascience
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5 min read
Point-in-Time Fundamentals Data: What It Is, Why It Matters, and How to Choose
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Point-in-Time Fundamentals Data: What It Is, Why It Matters, and How to Choose

#quant #python #finance #datascience
Comments
6 min read
Your Backtest Saw the Future: Lookahead Bias in Fundamental Data, Measured Across 313,562 Rows
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Your Backtest Saw the Future: Lookahead Bias in Fundamental Data, Measured Across 313,562 Rows

#quant #python #finance #datascience
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8 min read
How to Build a Point-in-Time Fundamentals Database from SEC EDGAR (and When Not To)
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How to Build a Point-in-Time Fundamentals Database from SEC EDGAR (and When Not To)

#quant #python #finance #datascience
Comments
5 min read
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