Big Lots traded more than 6-times its 10-day average volume on Tuesday, after the retailer sharply lowered its first-quarter U.S. same-store sales expectations.
Earlier in the session, Big Lots shares were down as much as 21.8 percent, their worst intraday loss since Nov. 2008.
The stock is now trading 7 percent below its 200-day moving average.
Here's a look at other stocks in the S&P 1,500 index displaying unusual volume.