Options trading
Options chain
Definition
The table that lists every strike and expiration for one underlying, with calls on one side and puts on the other, and a bid and ask for each.
Example
Say you open the options chain for a $50 stock and pick one expiration. On the $50 strike row, the call might show a bid of $1.90 and an ask of $2.00, with the put across from it at $1.70 by $1.80. Buying that call at the ask costs $200 per contract, while selling it right back at the bid would return only $190.
Hypothetical numbers, for illustration only.
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