Of course we only looked at how much we can lose when everything goes wrong. Let's look at what happens if everything is going right. The stock actually took off the in the correct direction; it actually went up after you sold the put. Well when that happens, yes you get to keep the premium from selling the put but look at how much more you COULD'VE earned if you had actually bought the stock? If a stock takes off, the premium that you earned from selling the put is only a fraction of the profit that you could've made whereas if you bought the actual stock, you would've be able to earn EVERY SINGLE cent of the profit, cent for cent. But since you only sold the put, and when it's OTM, nobody is going to exercise against you then you end up just watching the fireworks on the sideline. When everybody is popping the champagne celebrating, you are just sitting there watching since you don't own the stock so you don't own a piece of the action.
And I have another perfect example: During the same week last week, there was another stock that was also reporting earnings: MU Micro Tech. But unlike GME GameStop like what I shown in my previous post, MU actually reported very good earnings so no doubt, its stock took off like no tomorrow. Its put was trading about the same as GME at 0.1X before the earnings. So assume if you sold also 23 contracts of the put just like with GME, your premium would've been $2XX as well, same as GME. But look what happened after the earnings??!! Instead of tanking $2 right after earnings, MU took off 10% to $2 higher. Now if you had owned 2300 shares, you would've earned 2 X 2300 = $4600!! 23 TIMES your put-selling premium!! But instead you only got $2XX and are just happy that you won't get assigned and get to keep the $2XX.
So in conclusion, with selling options (puts or calls), you basically get a fraction of a cent of all the profit potential for the instant gratification of premium income when the stock price moves in the right direction but you get ALL the risk cent for cent when the stock moves in the wrong direction. The only way that you are winning is with the flat stock when the stock moves but not too much, so that way you win but with the consolation that you didn't lose too much of the winning that you COULD'VE earned if you owned the physical stock. But then because everybody knows that so they all try to sell the put on flat stocks, and Law of Supply & Demand dictates that when Supply > Demand, price falls so the premium on options of flat-moving stocks is also flat, very flat. Unless you have a six-figure trading capital, you won't make much money selling options. You are much better off just owning or shorting the actual stock if you have large trading capital.
And I have another perfect example: During the same week last week, there was another stock that was also reporting earnings: MU Micro Tech. But unlike GME GameStop like what I shown in my previous post, MU actually reported very good earnings so no doubt, its stock took off like no tomorrow. Its put was trading about the same as GME at 0.1X before the earnings. So assume if you sold also 23 contracts of the put just like with GME, your premium would've been $2XX as well, same as GME. But look what happened after the earnings??!! Instead of tanking $2 right after earnings, MU took off 10% to $2 higher. Now if you had owned 2300 shares, you would've earned 2 X 2300 = $4600!! 23 TIMES your put-selling premium!! But instead you only got $2XX and are just happy that you won't get assigned and get to keep the $2XX.
So in conclusion, with selling options (puts or calls), you basically get a fraction of a cent of all the profit potential for the instant gratification of premium income when the stock price moves in the right direction but you get ALL the risk cent for cent when the stock moves in the wrong direction. The only way that you are winning is with the flat stock when the stock moves but not too much, so that way you win but with the consolation that you didn't lose too much of the winning that you COULD'VE earned if you owned the physical stock. But then because everybody knows that so they all try to sell the put on flat stocks, and Law of Supply & Demand dictates that when Supply > Demand, price falls so the premium on options of flat-moving stocks is also flat, very flat. Unless you have a six-figure trading capital, you won't make much money selling options. You are much better off just owning or shorting the actual stock if you have large trading capital.
but once you work out the calculation, you realize what you give up is potential windfall of profit and it could be HUGE like in MU's and GME's case last week.