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Building a Stock Market Predictor: What Worked and What I'd Change

This story is from 2026-09-15. It is preserved in the archive; the latest stories are on the live feed.

When I started this project, I wanted to see how far I could get with a simple linear regression model trying to forecast stock closing prices — and turn that into a basic buy/sell signal. Here's what I learned. My Approach Data: Historical stock/index data pulled live via the yfinance API (Yahoo F…

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  1. 2026-09-15 16:50 · DEV Community — Machine Learning
    Building a Stock Market Predictor: What Worked and What I'd Change

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