Stocks making the biggest moves in the premarket: Twitter, Skyworks Solutions, Western Digital & more

Stocks making the biggest moves in the premarket: Twitter, Skyworks Solutions, Western Digital & more

Take a look at some of the biggest movers in the premarket:

Twitter (TWTR) - Twitter shares plunged 12.4% in premarket trading after it warned of rising expenses and a possible slowdown in user growth. Twitter beat estimates for its latest quarter by 2 cents a share, with earnings of 16 cents per share. Revenue was also slightly above estimates.

Skyworks Solutions (SWKS) - Skyworks beat estimates by 2 cents a share, with quarterly earnings of $2.37 per share. The maker of semiconductor components also saw its revenue beat forecasts. The company's shares tumbled 7.9% in premarket trading, however, after it gave an outlook that disappointed some investors.

Western Digital (WDC) - Western Digital reported quarterly profit of $1.02 per share, compared to a consensus estimate of 68 cents a share. The disk drive and flash memory company's revenue also exceeded Street forecasts, with stronger memory chip prices among the positive factors for the quarter. Shares jumped 4.7% in premarket action.

Chevron (CVX) - Chevron matched forecasts with quarterly profit of 90 cents per share, with revenue above Street forecasts. Chevron's profit fell 29% from a year ago, with weaker refining margins among the factors offsetting higher oil and gas prices. Its shares lost