Today, US equity markets experienced a small correction, just shy of 3%.
The DOW (DJIA) went down 724 points, totaling 2.93% in the red (source: http://money.cnn.com/data/markets/dow/)
Certainly the Fed announcing a Federal Funds Rate hike, and Facebook's scandals this week have contributed to this.
It would appear that precious metals also took a hit today: http://www.kitco.com/market/
Cryptos also generally look a bit lower, although Bitcoin has seemed to recover from it's sluggish performance in recent times: https://www.worldcoinindex.com/