Option Chain for Proteostasis Therapeutics Inc. (PTI) 

$ 1.105   -0.035 (-3.07%) Volume: 176.71k 10:27 AM EDT Apr 1, 2020
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Apr 20  |  May 20  |  Jul 20  |  Oct 20  |  Near Term  |  All
Calls Last Chg Volume Open Int Root Strike Puts Last Chg Volume Open Int
Apr 17, 2020 0.20 -0.10 1 425 PTI 1.00 Apr 17, 2020 0.10   0 1228