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Put Option
Options
どういう意味か
A contract that gives you the right (but not the obligation) to sell 100 shares of an underlying asset at a fixed price (the strike price) by a specific date (the expiration date). You buy a put when you expect the underlying price to drop below the strike price minus the premium you paid.
例
You buy 1 QQQ put option with a $400 strike price and $2.50 per share premium ($250 total cost). If QQQ drops to $380 at expiration, you make $20 per share × 100 shares = $2,000, minus the $250 premium, for a net profit of $1,750.
初心者がよくやるミス
Beginners assume a put option will always protect their stock position, but if the stock does not drop far enough to cover the premium paid, the put expires worthless and you lose money on both the stock (if it rises) and the put.
関連用語
- Call Option — A contract that gives you the right (but not the obligation) to buy 100 shares of an under…
- Strike Price — The fixed price at which the holder of an option can buy (for call options) or sell (for p…
- Option Premium — The price you pay per share to buy an option contract. The total cost of the option is the…
- Break-even — The underlying price at which an option trade results in zero profit at expiration. For ca…