If mkt<50% resolves to PROB=1-2mkt, otherwise resolves to PROB=2-2mkt, rounded to the nearest integer percent.

By mkt I mean the market's predicted probability or "chance" as shown by the interface at close (a 2-or-3-decimal number between zero and one). For example, if the "chance" predicted when the market closes is:

60%, resolves to PROB=2-2*(0.6)=2-1.2=0.8 =80%

1.2%, resolves to PROB=1-2*(0.012)=1-0.024=0.976 ≅98%

Hope this makes it more interesting as my 

 kinda failed to incentivize much trading.

Market closes at some random time during Monday 1/23/23 EST unless there's trading within the latest 60 min, in which case it closes at a random time between 30 and 60 minutes later regardless of any further activity. I will not actively buy any shares past Sunday EST, but I reserve the right to set protective limit orders or liquidate all or part of a potentially losing position up to when I first check the market on Monday.

Close date updated to 2023-01-23 11:59 pm EST

Close date updated to 2023-01-23 4:15 pm EST