Quote from optionbull:
so you make all your money "gamma scalping" ?
i'm not making money right now.. thats clear from my journal.. i've literally fumbled entry and everything else for a while..
but..
if you wanted to be long vol you buy strangles or otm puts.. without delta hedging though its becomes more of a play on gamma ...
http://learning.saxobank.com/forex/options/gamma_scalping.aspx
you'll hear most people talk in reference to their risk.. meaning thats where there PNL will be derived from..
if your delta hedging a straddle.. just like Atticus said.. your pnl will be from implied verse realized +/- your hedging cost..
a delta hedged long straddle = gamma scalping .. alot of your PNL is derived from your ability to extract changes in the underlying efficently..