Quote from yip1997:
Are there any papers that model the change of the vol surface with a daily change of the spot?
Suppose spx increases by 10 points, how will atm(t) and the vol slope(t) change? Don't need to have exact values. Just want to get a rough idea.
Most option software analytics can model vol skew with change in price and change in ATM vols while maintaining the shape of the curve.
