Settle
Gain/Loss
Account Balance
$1.3010
$1.2980 $1.2948
$62.50
$1,687.50 = $1,625 + $62.50
= ($1.3010/£ – $1.3000/£) × £62,500
–$187.50
$1,500
–$200.00
$1,300
On day three we receive a margin call, having lost $325.
– If the price goes down, the long pays the short. – If the price goes up, the short pays the long.
• After the daily resettlement, each party has a new contract at the new price with one-dayshorter maturity.
– Call options give the holder the right, but not the obligation, to buy a given quantity of some asset at some time in the future at prices agreed upon today.
balance on the account, adjusted for deposits or withdrawals. – $325 = $1,300 – $1,625
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