New Post Public Reply Private Reply Replies (0) Message Board ← Newer Older → Langan Apr 16, 2018 at 1:50 PM 118 PTI 5.16 Proteostasis Ther is number 13 out of 100 Top trading stocks today. $PTI +0.11 +2.18% 100 day average volume 2,099,205 with 34,480 outstanding shares. Newer Older