elta and gamma hedge writing 400 call options on stock ABC with X=540! As your answer, provide the number of shares to be held rounded to the nearest integer. Here is the data:

Stock's current price: $540

Call 1 Call 2

X1=540 X2=$600

C1=71.85 C2=$48.80

Delta1=0.67 Delta2=0.45

Gamma1=0.0021 Gamma2=0.0023