Palantir's valuation is retreating today after Walmart issued sales guidance for this year that spooked Wall Street. On the heels of a 5.6% increase for its annual revenue last year, the retail giant only expects sales growth to be between 3% and 4% this year.

If you have been following the artificial intelligence (AI) revolution over the past two years, chances are you're familiar with a software company called Palantir Technologies (NASDAQ: PLTR). Since last January,

Palantir (NASDAQ: PLTR) stock saw big sell-offs in Wednesday's trading. The software specialist's share price ended the daily session down 10.1% and had been off as much as 12.9% earlier in trading. Palantir stock saw a pullback early in today's trading following a disclosure yesterday that CEO Alex Karp plans to sell $1.