You buy a 25, 000 pound copper futures contract at $3.1165 per pound with an initial margin requirement of $5000, and maintenance margin of $3000. What is your percent returmuf instead copper decreased to $3.06597-25%-5%-2% -0,2% 2 Speculators in futures markets provide liquidity which raises transaction costs lowers transaction costs, increases excess volaillity causes panics and crashes