SPY options basics
SPDR S&P 500 ETF Trust trades as SPY on NYSE Arca, and its listed options are American style with a standard multiplier of 100 shares per contract. Type SPY's current price and the calculator prices every contract with the American model you select. When a SPY option chain is available it loads on its own, and implied volatility is solved from each contract's bid and ask midpoint.
Because SPDR S&P 500 ETF Trust has historically paid a cash distribution, enter the next dividend and ex dividend date under “Rates, dividends and costs” to check whether short SPY calls in your position are likely to be assigned early.
Popular SPY option strategies
Long Call
Covered Call
Cash Secured Put
Bull Call Spread
Iron Condor
Long Straddle
Protective Put
Poor Man's Covered Call
SPY options FAQ
Are SPY options American or European style?
SPY options are American style, like all listed options on US stocks and ETFs. The holder can exercise any business day before expiration, so the calculator prices them with American models and flags early assignment risk on short legs.
Can SPY options be assigned early?
Yes. SPDR S&P 500 ETF Trust has historically paid a cash distribution, so in the money SPY calls are most at risk of early assignment the day before an ex dividend date, when the dividend exceeds the call's remaining time value. Deep in the money puts can also be assigned early.
How do I calculate profit on a SPY option?
Load SPY in the calculator above, pick a strategy such as a long call or covered call, and adjust the strike and expiration. The calculator shows profit and loss at expiration and at any earlier date, plus breakevens, max profit, max loss and the chance of profit using SPY's implied volatility.
Educational tool, not financial advice. Calculations are theoretical and depend on your inputs; real fills, fees, early assignment and dividends can change results. Options involve risk and are not suitable for every investor.