The current stock price doesn't really have much to do with the return in this case since the strike price is $15 and that is where you will buy in if your puts are called. First let's talk about selling 'naked' puts in which you are not SHORT Telsa shares. If you happen to be long Tesla shares, the puts you sell are still naked because you will be buying the shares at $15 if the put options are called, not selling them.
Your return if the puts are called at the strike price would be 0.95 / 15 = 6.3%. that annualizes to 13.6% since there are 170 days left on the contract (6.3% x 365/170= 13.6%). Sounds great so far, but.... if the stock drops below $15 it's a different story. Between $14.05 and $15 you still make money on the trade, but anything below $14.05 puts you into the red, and it gets ugly fast. If the stock price closed at $13.10, for example, you lose double your 95 cent premium, a return of -100%.
So how do you protect yourself? You could write 'covered' put options by being short an equal number of Tesla shares to the number of puts your write. If the share prices drops below $15, the shares you are short will simply be cancelled out with the shares you buy at $15.00. You keep your $0.95 per share premium for writing the puts, and you also made a handsome profit on the decline of the shares from their current value down to $15. A decline of $26 to $15 or below, for example, gives you a profit of $11 per share -- much greater than your 95 cent per share premium. If Tesla shares are flat you don't make anything from the shorted shares, but you still keep your 95 cent premium in any case.
That sounds like a pretty good deal until you think about what happens if Tesla's stock price goes up rather than down. You pocket the 95 cents per share for the puts you sold, but any price gains above 95 cents put you into the red as your losses mount on the shorted shares. If the stock currently trades at $26, you are in the black up to $26.95, and you lose money as the stock continues to rise from there. If the stock settles into the mid 30's or more, your loss would be catastrophic.
It's interesting that in selling either naked or covered puts, there is a distinct set of risks that could wipe out your whole stake or worse. Selling naked puts is a bullish because if the stock goes up, stays flat, or at the very least stays at or above $15, you pocket the entire premium. The downside as explained above is that if the stock drops below $14.05, you start to lose money very rapidly. Worst-case scenario: the stock is delisted. Before the delisting date option positions will be liquidated, and you end up buying worthless shares for $15 per share.
Selling covered puts on the other hand is taking a bearish stance on the shares since all of your upside depends on the shares dropping right down to the strike price where your maximum gain is realized. The risk factor here is if the shares rise in value from wherever you short them, the $0.95 premium will get eaten up pretty quickly. Any takers still? :smile: