re: redabyss is standing on a contradiction
U, red have just made four spot random predictions. I stand by my 0.0625. You said sometime between today and then the price of each would be some price.
If you want to put down for BHP 29 Jul $x.xx 30 Jul $x.xx .... xth day of yth month $7.50 ...
then yes, prob is extremely low, but that ain't what U did.
PS Black Scholes theorem relies on acceptance of the random walk of stock price theory. If you are basing your pred's onit then you are making the underlying assumption that stock prices follow a random walk.