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Point-in-Time Fundamentals for Numerai Signals: Killing Lookahead in Your Feature Join
Christian Pichichero
Christian Pichichero
Christian Pichichero
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Aug 19
Point-in-Time Fundamentals for Numerai Signals: Killing Lookahead in Your Feature Join
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5 min read
Algorithmic Risk Management in MT5: ATR Volatility Position Sizing & MQL5 Architecture
Gueta Quant
Gueta Quant
Gueta Quant
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Aug 19
Algorithmic Risk Management in MT5: ATR Volatility Position Sizing & MQL5 Architecture
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metatrader5
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2 min read
Pine Script v6 in 2026: math.sum, math.tanh, User Defined Types & Risk Management Engine
Gueta Quant
Gueta Quant
Gueta Quant
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Aug 19
Pine Script v6 in 2026: math.sum, math.tanh, User Defined Types & Risk Management Engine
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algorithmictrading
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2 min read
Pine Script v6 in 2026: math.sum, math.tanh, User Defined Types & Risk Management Engine
Gueta Quant
Gueta Quant
Gueta Quant
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Aug 19
Pine Script v6 in 2026: math.sum, math.tanh, User Defined Types & Risk Management Engine
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tradingview
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algorithmictrading
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pinescript
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2 min read
Why the Same Fundamental Lives Under Different XBRL Tags in SEC EDGAR
Christian Pichichero
Christian Pichichero
Christian Pichichero
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Aug 12
Why the Same Fundamental Lives Under Different XBRL Tags in SEC EDGAR
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6 min read
SEC 10-K Filing Deadline Data: The Structural Reason Fundamentals Lag Weeks Behind
Christian Pichichero
Christian Pichichero
Christian Pichichero
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Aug 12
SEC 10-K Filing Deadline Data: The Structural Reason Fundamentals Lag Weeks Behind
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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.
Christian Pichichero
Christian Pichichero
Christian Pichichero
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Aug 4
We Shipped a 10x Error on General Mills. Here's the Bug, and the Check That Would Have Caught It.
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5 min read
As-Reported vs Restated Financial Data: Why the Difference Matters for Backtesting
Christian Pichichero
Christian Pichichero
Christian Pichichero
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Jul 29
As-Reported vs Restated Financial Data: Why the Difference Matters for Backtesting
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5 min read
I rebuilt a viral "3,888% return" TradingView strategy — it landed almost exactly at coin-flip odds
Mahesh
Mahesh
Mahesh
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Jul 26
I rebuilt a viral "3,888% return" TradingView strategy — it landed almost exactly at coin-flip odds
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7 min read
I tried to port an Indian FII/DII trading strategy to MNQ, MES, SPY, and QQQ — it lost money on all four
Mahesh
Mahesh
Mahesh
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Jul 26
I tried to port an Indian FII/DII trading strategy to MNQ, MES, SPY, and QQQ — it lost money on all four
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6 min read
How to Detect Lookahead Bias in a Backtest: A Practical Checklist
Christian Pichichero
Christian Pichichero
Christian Pichichero
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Jul 8
How to Detect Lookahead Bias in a Backtest: A Practical Checklist
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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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6 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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5 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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8 min read
Building a Korea-Market Middleware for Microsoft Qlib
Dennis Kim
Dennis Kim
Dennis Kim
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Jul 5
Building a Korea-Market Middleware for Microsoft Qlib
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qlib
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6 min read
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