New Post Public Reply Private Reply Replies (0) Message Board ← Newer Older → Langan Oct 12, 2017 at 12:34 PM 245 SLCA 29.98 U.S. Silica Holdings Inc is number 72 out of 100 Top trading stocks today. $SLCA -0.54 -1.77% 100 day average volume 2,727,022 with 81,210 outstanding shares. Newer Older