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IMPORTANT

Read and follow these instructions carefully. Help us help you.

Are you up-to-date?

Upgrade to the latest version and confirm the issue/bug is still there.

$ pip install yfinance --upgrade --no-cache-dir

Confirm by running:

import yfinance as yf ; print(yf.__version__)

and comparing against PIP.

Does Yahoo actually have the data?

Are you spelling symbol exactly same as Yahoo?

Then visit finance.yahoo.com and confirm they have the data you want. Maybe your symbol was delisted, or your expectations of yfinance are wrong.

Are you spamming Yahoo?

Yahoo Finance free service has rate-limiting depending on request type - roughly 60/minute for prices, 10/minute for info. Once limit hit, Yahoo can delay, block, or return bad data -> not a yfinance bug.

Still think it’s a bug?

Delete these instructions and replace with your bug report, providing the following as best you can:

Simple code that reproduces your problem, that we can copy-paste-run.
Run code with debug logging enabled and post the full output.
If you think yfinance returning bad data, give us proof.
yfinance version and Python version.
Operating system type.

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