Option Chain for Summit Materials Inc. Class A (SUM) 

$ 15.00   2.51 (+20.10%) Volume: 3.21m 6:30 PM EDT Mar 31, 2020
After Hours:  $ 15.24   0.24 (+1.60%) Volume: 48.93k 7:59 PM EDT Mar 31, 2020
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Apr 20  |  May 20  |  Aug 20  |  Nov 20  |  Jan 21  |  Jan 22  |  Near Term  |  All
Calls Last Chg Volume Open Int Root Strike Puts Last Chg Volume Open Int
May 15, 2020 1.25 0.20 24 2016 SUM 15.00 May 15, 2020 1.90   0 1