NVIDIA
NVDA
Tesla
TSLA
Vale SA
VALE
4
Coinbase
COIN
5
MARA Holdings
MARA
How do we value your options positions?
The value and profit or loss (P/L) of your options positions are all calculated based on the mark price. The mark price is a reference price used to determine the fair value of an option.
There are two ways to find the mark price of an option:
- Go to the option's quotes page.
- Check the options chain.
Mark price calculation by options type:
Options Type | Mark Price Calculation |
US stock options and index options | Mark Price = (Best Bid + Best Ask) / 2 |
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