Palantir Technologies Inc (NASDAQ:PLTR) shares are trading lower Wednesday as the stock continues to pull back following a strong run in recent weeks. Here's what you need to know.

Then, short seller Andrew Left of Citron Research said PLTR stock was "detached from fundamentals and analysis". He's certainly not the first one to suggest that the Palantir rally has gone too far. However,

Citron Research says Palantir stock at $40 per share would still be an expensive AI stock to own. Wall Street recommends caution on PLTR shares as well.