At market close (6:00 PM PDT on Sunday, March 26), for each YES shareholder, I will add the square root of their number of shares, as listed in Positions. (For example, if there are two shareholders with 25 shares and 2 shares respectively, that will count as 5+sqrt(2) ≈ 6.41.) Then I will do the same for each NO shareholder. 

Resolves YES if the total for Team YES is strictly greater than the total for Team NO. Resolves NO otherwise (including a tie).

Compared to other which-side-is-higher markets, the square root should make it easier to win by getting more people, as opposed to just having more mana, while still giving an advantage to those willing to invest a lot.

General policy for my markets: In the rare event of a conflict between my resolution criteria and the agreed-upon common-sense spirit of the market, I may resolve it according to the market's spirit or N/A, probably after discussion.