The chain

Every strike, every Friday

Calls on the left, puts on the right. Bids and asks are real Seaport listings; the fair value beside them is Black–Scholes at the stock's own volatility. Pick a cell to trade it.

—today
—moves a year
CallsStrikePuts
BidAskFair$FairBidAsk
call in the moneyput in the moneynearest today's priceReading Seaport…