This indicator works in Brazil market, it should be used on options symbols. the indicator create 8 buffers, Delta, Gamma, Vega, Rho, Theta, Time(working days), Implied Volatility, R (interest rate), and can be used to view greeks over time. It shouldn't be used to trade, since it's cpu intensive, it's just a historic viewer, you can see what happened with greeks and teach friends :)