Graphing the greeks: Just as flexible as the risk graphs. Show how delta, gamma, theta and vega change
a) vs. movement in the underlying
a1) over time
a2) with variation of implied volatility
b) over time
b1) at various underlying prices
b2) with variation of implied volatility
Complicated? Basically you can look at all combinations of underlying price, points in time and implied volatility. Here are two examples for a calendar spread (a2 and b2).