Scholes was one of the founding principles of LTCM. I quote from 'When Genius Failed':
"Indeed, many of Long-Term's trades were attempts to exploit spreads that, in its view, reflected an inaccurate estimate of future volatility risk - the one risk that (to Long-Term) really counted. Such strategies had evolved directly from the Black-Scholes formula."
My comment was flippant, but not completely pointless!!
Black-Scholes assumes constant volatilty and as my old mum used to say, "assumption is the mother of all f**k-ups, son".