Issue with Incomplete Stock Split Data in yfinance (v0.2.49)

[grastofilo]

Hello everyone,

I'm a beginner both in programming and in stock trading, so I kindly ask for your patience if my questions aren't entirely accurate.

I'm developing a small personal application that provides fundamental data and a historical record of gap days for a selected stock. The tool helps analyze a stock's "behavior" and observe how it closes after opening with a gap.

The app relies on data provided by yfinance. To accurately calculate the gap days, it adjusts prices to their original values by accounting for subsequent stock splits.

Everything seemed to work fine until I noticed that while yfinance consistently provides the same number of days (I request all available historical data for each stock), the stock splits data is often incomplete. Sometimes, fewer splits are loaded than there actually are.

This behavior appears completely random, and I can't determine its cause. I was wondering:

Is this a known issue?
Is there a way to fix it?
Could simply upgrading to version 0.2.51 resolve the issue automatically?

Thank you in advance for your help!

Best regards,
Luca