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Personal finance, investing, and financial literacy.

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How to Become a Quant in 2026: The Complete Career Guide

How to Become a Quant in 2026: The Complete Career Guide

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5 min read
Black-Scholes Explained Simply — With Python Code

Black-Scholes Explained Simply — With Python Code

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4 min read
Get free US-stock fundamentals from the SEC EDGAR API (and build a "divergence score")

Get free US-stock fundamentals from the SEC EDGAR API (and build a "divergence score")

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3 min read
The Seller Said 2.3% Churn. The CSV Said 9.4%. Don't Make My $340K Mistake.

The Seller Said 2.3% Churn. The CSV Said 9.4%. Don't Make My $340K Mistake.

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2 min read
Stop recomputing OHLCV indicators after every new bar

Stop recomputing OHLCV indicators after every new bar

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2 min read
Stop Prompting LLMs to do Legal Math. It's Broken.

Stop Prompting LLMs to do Legal Math. It's Broken.

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3 min read
Why I Built an AI-Powered IPO Analytics Platform for Indian Investors?

Why I Built an AI-Powered IPO Analytics Platform for Indian Investors?

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2 min read
We graded 13 famous trading strategies on 6 years of data. All 13 failed.

We graded 13 famous trading strategies on 6 years of data. All 13 failed.

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3 min read
Moving Averages & RSI: Trading Like a Pro in the Matrix

Moving Averages & RSI: Trading Like a Pro in the Matrix

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4 min read
Risk Rules Enforced in Code, Not Vibes: Building a Trading Engine With a Kill Switch

Risk Rules Enforced in Code, Not Vibes: Building a Trading Engine With a Kill Switch

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2 min read
Berkshire's $397 Billion Bet Against an Overheated Market!

Berkshire's $397 Billion Bet Against an Overheated Market!

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5 min read
Ranking 80 Tickers in ~1 Second With Only Free Data

Ranking 80 Tickers in ~1 Second With Only Free Data

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2 min read
We graded 13 famous trading strategies on 6 years of data. All 13 failed.

We graded 13 famous trading strategies on 6 years of data. All 13 failed.

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3 min read
BDE Score™: Open-Source Multi-Factor Stock Analysis Tool Covering US, HK & A-Share Markets

BDE Score™: Open-Source Multi-Factor Stock Analysis Tool Covering US, HK & A-Share Markets

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1 min read
From Raw Prices to Real Signals: Financial Metrics for a Data Pipeline (Daily Return, MA, RSI, MACD, Volatility)

From Raw Prices to Real Signals: Financial Metrics for a Data Pipeline (Daily Return, MA, RSI, MACD, Volatility)

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4 min read
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