Shares
Key Shares in ELN Accumulator refers to the number of shares Nᴰ accrued in the special nominal account on each business day t when either the leverage L equals 1 or the share price growth S(t)/S⁰ is above the strike K, as described in ELN Accumulator.
Note, the number of shares accrued on a day when the share price is below K equals LNᴰ