Nvidia stock was struggling for direction ahead of Thursday's opening bell, even though the artificial-intelligence chip maker once again topped Wall Street's earnings expectations. Shares were trading flat at $131.

Nvidia shares traded near flat in premarket action Thursday, suggesting they could be due for an unusually muted post-results session. The AI chip maker's stock is popular with individual investors and often swings wildly following earnings.

Nvidia options pricing on Wednesday afternoon suggested traders expect shares to move roughly $10, or about 8%, in either direction around Wednesday’s earnings, which would be the stock's biggest post-earnings move since May.