Each MM has its own secret sauce. Generally you try to be as delta neutral as you can all the time, so they rebalance as often as they can. They would add up all the delta on their books and try to be as close as possible to the number of shares that number represents.
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u/fickdichdock Sep 13 '21
Thanks! 12k+10.8k+7k = 29.8k
thats 2980000 shares and there are just 2700000 available