The tech-heavy Nasdaq Composite Index dove into to official "correction" territory on Wednesday, falling 4 percent on the day. The index is now down about 13 percent from the all-time high it set at the end of August.
That swoon has sent a number of Silicon Valley stocks that are among the most valuable components of the index tumbling as well. Despite the big drop, the Nasdaq is still up by about 3 percent on the year and most of the local tech stocks are still in the black for 2018, too.
