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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
Allowlists Are Not Spending Caps: Two Different Security Properties, Often Confused
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Allowlists Are Not Spending Caps: Two Different Security Properties, Often Confused

#web3 #security #ethereum #architecture
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4 min read
The Fill Model Is Where Backtests Quietly Cheat
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The Fill Model Is Where Backtests Quietly Cheat

#python #trading #datascience #statistics
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4 min read
What 'Revocable' Actually Means at the Contract Level
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What 'Revocable' Actually Means at the Contract Level

#web3 #ethereum #security #tutorial
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4 min read
Scoped Permissions vs Custody: Letting Software Act On-Chain Without Holding Your Keys
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Scoped Permissions vs Custody: Letting Software Act On-Chain Without Holding Your Keys

#web3 #ethereum #security #architecture
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4 min read
What Shuffling Your Trade History Actually Tells You (And What It Doesn't)
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What Shuffling Your Trade History Actually Tells You (And What It Doesn't)

#python #statistics #datascience #trading
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4 min read
What a Clean Equity Curve Doesn't Prove
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What a Clean Equity Curve Doesn't Prove

#python #datascience #trading #statistics
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4 min read
Point-in-Time Fundamentals for Numerai Signals: Killing Lookahead in Your Feature Join
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Point-in-Time Fundamentals for Numerai Signals: Killing Lookahead in Your Feature Join

#quant #python #finance #datascience
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6 min read
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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5 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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6 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
BERJAYA BERJAYA 2
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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
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6 min read
Your Backtest Saw the Future: Lookahead Bias in Fundamental Data, Measured on the 2026-07-23 Snapshot
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Your Backtest Saw the Future: Lookahead Bias in Fundamental Data, Measured on the 2026-07-23 Snapshot

#quant #python #finance #datascience
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10 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
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5 min read
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