我不玩期權，也幾乎忘光了。我的建議是不要玩期權。實在要玩也要知道自己在用什麽杠杆率。
For a DITM call option such as leaps, its leverage rate is: stock price/(stock price-strike price). This is because, if stock price changes by one dollar, option price changes roughly the same. But for long term DITM, option price is (stock price-strike price+premium), where premium is small. That's all. Hope I didn't say anything wrong.
If strike price is zero, leverage rate becomes 1, and you are just owning the stock itself.
Now, however, any leverage has a cost. If you raise debt, which is a type of leverage, you need to pay interest. Same for leaps. The premium you pay for holding it is roughly the same as the interest rate at the time, that is to say, a few percent a year, which is negligible for the ambitious investors.
But then again, if owning a stock is stressful enough. I personally don't want to use leverage to own it.
