Market maker's delta-hedge illustrated (FRM T4-20)

[my xls is here https://trtl.bz/2O1OwKT] This market maker writes one call option (to the client) and hedges delta by purchasing Δ shares of the stock; this neutralizes delta but leave the market maker with a negative position gamma due to the short option position. The net profit, which is quantified in this video, on the position (i.e., short one call plus long one Δ share) is positive for short moves in the stock price but negative for large moves. There are four components to the market makers net gain/loss: interest received on cash from the short call, interest paid on the cash used to fund the purchase of the Δ share, positive theta (because time decay is a gain for the short option position!), and negative position gamma which overwhelms the other components as the magnitude of the stock movement (in either direction) increases. Discuss this video here in our FRM forum: https://trtl.bz/2JxHgqV

Видео Market maker's delta-hedge illustrated (FRM T4-20) канала Bionic Turtle