Trading in Nvidia's stock was very heavy, in more ways that one, as it has already nearly reached the average share volume for the entire day. The stock was falling 1.7% in recent trading, on volume of 189.

Stocks are likely to move to the upside in early trading on Thursday, extending the advance seen late in the previous session. The

Despite being down in Wednesday's after-hours action and earlier in Thursday's premarket trading, Nvidia shares have now turned higher ahead of the open. Shares are up just over 1% in premarket trading Thursday with about a half hour to go until the opening bell.