AMD Stock Popped After Earnings, Then Gave It All Back. Is It a Buy Now?

AMD gave back its entire post-earnings pop. The stock initially jumped 8% after hours on its Q3 report, then the gains evaporated as investors weighed valuation against growth.

The print itself was strong. AMD's data center revenue rose 97% year-over-year, the figure that drove the initial surge. But buyers faded the move once the multiple came into focus: AMD trades at 106x trailing earnings, and the stock's price already reflects all of 2027's expected growth.

The comparison to NVDA sharpens the issue. NVDA trades at 12.6x forward earnings. Note the two figures use different bases, trailing for AMD and forward for NVDA, so the gap overstates the spread. Even so, the direction is clear: AMD carries a far richer valuation than its larger competitor.

Interpretation: the round trip suggests the market had already discounted a strong quarter. A 97% data center growth rate was not enough to extend the rally when the share price assumes years of continued execution. The after-hours spike and subsequent reversal point to sellers using strength as an exit.