Call option (price increases more if underlying increase or if underlying decrease)

Thoughts?

This is delta

Underlying Increase. Delta will underestimate the appreciation

Opposite for Puts. Underlying decrease, delta will underestimate

Thanks!!!

No, it isn’t.

It’s gamma.

Draw a picture.

I’ll get you started:

  • Strike price is $100
  • Underlying price is $80
  • Underlying price change is either:
    • −$70
    • +$70