Once a stock market darling, Nvidia stock seems to have taken a heavy beating due to increasing economic uncertainties, rising tech sector volatility, and intensifying competitive pressures. An increase in insider and institutional selling activity in the past year also seems to have affected investor confidence.

Nvidia stock rose Wednesday as it continued to pare back some of its recent losses—but more big swings could be ahead.Shares in the chip maker rose 6.4% to $115.74, having closed the previous session up 1.