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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
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
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
I rebuilt a viral "3,888% return" TradingView strategy — it landed almost exactly at coin-flip odds
umam75 profile

I rebuilt a viral "3,888% return" TradingView strategy — it landed almost exactly at coin-flip odds

#trading #python #pinescript #quant
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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
umam75 profile

I tried to port an Indian FII/DII trading strategy to MNQ, MES, SPY, and QQQ — it lost money on all four

#trading #python #pinescript #quant
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6 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
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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
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5 min read
Building a Korea-Market Middleware for Microsoft Qlib
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Building a Korea-Market Middleware for Microsoft Qlib

#qlib #python #machinelearning #quant
1
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6 min read
Learn quantitative finance with Python from scratch
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Learn quantitative finance with Python from scratch

#finance #python #quant
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2 min read
Walk-forward backtest: como nĂŁo enganar a si mesmo
arthurvalle1_a2586dd2b4bc profile

Walk-forward backtest: como nĂŁo enganar a si mesmo

#finance #datascience #quant
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5 min read
Volatility Relative-Value Trading: The Complete Guide
tomasz_dobrowolski_35d32c profile

Volatility Relative-Value Trading: The Complete Guide

#quant #python #trading #finance
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11 min read
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