相對於2D的股票，options是3D。網上找到一個例子

如果花$5買的call， 如果這個股票第二天從$50漲到$60，那麽你的call就(差不多)值$5+$10=$15。  轉手賣掉，就淨賺$10, 200% profit.  

當然錢不是那麽好賺的，弄不好，會血本無歸。 

https://www.nerdwallet.com/article/investing/call-options

An example of buying a call option

XYZ stock is trading for $50 a share. Calls with a strike price of $50 are available for a $5 premium and expire in six months. In total, one call contract costs $500 ($5 premium x 100 shares).

The graph below shows the buyer’s profit or payoff on the call with the stock at various prices.

Because one contract represents 100 shares, for every $1 increase in the stock price above the strike price, the total value of the option increases by $100.

The breakeven point — above which the option starts to earn money, have intrinsic value or be in the money — is $55 per share. That’s the strike price of $50 plus the $5 cost of the call. When the stock trades between $50 and $55, the buyer would recoup some of the initial investment, but the option does not show a net profit.

所有跟帖： 

• option 見外婆的概率更高 -mobius- ♂ (399 bytes) () 07/12/2024 postreply 22:13:19

• 所以不是這麽直楞楞買的 -nancyjin5391- ♂ (41 bytes) () 07/12/2024 postreply 22:16:49

• 股神Pelosi 的Leap 也很賺啊。不過見過外婆不敢碰option了。還是TQQQ好。 -mobius- ♂ (0 bytes) () 07/12/2024 postreply 22:19:24

• 這個leveraging就足夠了 -nancyjin5391- ♂ (0 bytes) () 07/12/2024 postreply 22:28:00

• 這事沒有膽量不敢做。 -QinHwang- ♂ (0 bytes) () 07/12/2024 postreply 22:21:25

• 你可以按照很安全的方式去做 -nancyjin5391- ♂ (137 bytes) () 07/12/2024 postreply 22:26:13