Option Chain for Riot Blockchain Inc (RIOT) 

$ 1.46   -0.05 (-3.31%) Volume: 441.69k 4:00 PM EST 18-Nov-2019
After Hours:  $ 1.49   0.03 (+2.05%) Volume: 274 5:52 PM EST 18-Nov-2019
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Nov 19  |  Dec 19  |  Near Term  |  All
Calls Last Chg Volume Open Int Root Strike Puts Last Chg Volume Open Int
15-Nov-2019 0.01   0 50 RIOT 1.50 15-Nov-2019 0.02   0 160
22-Nov-2019 0.03 -0.03 227 292 RIOT 1.50 22-Nov-2019 0.07 0.02 69 190
29-Nov-2019 0.06 -0.08 51 224 RIOT 1.50 29-Nov-2019 0.10 -0.03 1 131