stock and option1 - kaorusaku @ ウィキ

①(B-S)/O=T

②(S-S)/O=T

T is diviation to report evaluation in the stock.

Option is used for step to control scale of stock market.

Plase remark ② as equation.

(Stock-Stock) can get profits to keep option to control scale in order to cover cost under your judgement on scale to depend on your preference.

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