Why option sellers get paid
You get paid because somebody wants a payoff you can provide and cannot get any other way, and because providing it exposes you to losses larger than the fee. The premium is compensation for risk transfer, not a return on capital. Strip out the risk and the expected profit on the contract itself is zero.
Two answers get given to this question. The popular one is that time decay is on your side and options are wasting assets. The honest one is that you are being paid to take somebody else's risk, and the market is reasonably good at pricing what that risk is worth.
Who is on the other side, and why they are there
Somebody bought the $42 call you sold for $73. They are not stupid and they are not gambling, necessarily. Three ordinary reasons that trade exists:
Leverage on a view. $73 controls 100 shares. If DKNG goes to $50 that contract is worth $800. Nothing else available to a retail account produces that shape, and the buyer knows the odds are against them.
Insurance. On the put side especially. A fund holding a large position buys downside protection and is happy to pay for it, the same way you are happy to pay for home insurance you hope never pays out. Somebody has to write that policy, and the premium is the price.
Hedging something else. A market maker who is short elsewhere, a dealer flattening a book. Most option volume is not a directional bet by an individual.
You are the insurer in every one of those. That is the job, and the fee is the job's compensation.
The uncomfortable arithmetic
Under the model that prices the contract, your expected profit on it is zero. Not small. Zero.
The $42 call pays you $73 and has a 22.9 percent chance of finishing in the money. Work through what happens on the paths where it does, and the average amount handed back on those paths is almost exactly $73 divided by 0.229. The win rate and the loss size are two sides of the same price, and they cancel.
That is not a criticism of the strategy. It is what a fairly priced contract means. Cluster H works this out on a real position and the finding there is the same: an 82 percent win rate exactly paid for by a $356 average give-back on the other 18 percent.
So if the contract is a coin flip in expectation, where does the money come from?
Where the actual edge is
One place, and it is smaller than the marketing suggests: implied volatility tends to price above what the stock goes on to do.
The buyer of insurance pays a load. That load is the variance risk premium, and it is one of the more durable effects in finance, measured across decades and across markets. It is also about two volatility points wide. Cluster C measures it on a real chain and finds implied running 1.9 points above realized, worth roughly $39 on a $540 straddle, with the choice of estimator moving the measurement by 5.7 points, which is three times the signal.
On the DKNG position here, two points of volatility on the $42 call is worth about $9 over the 45 days. Nine dollars. Against a $73 credit and $3,840 of stock tied up.
That is the edge. Everything else you collect is payment for risk you genuinely took.
What time decay actually is
The popular answer is not wrong, it is just not an edge. Yes, an option loses extrinsic value every day. Yes, that flow is toward the seller. But the decay is priced in: the reason the 17-day $42 call is 19 cents and the 73-day is $1.22 is that the market has already worked out how much time is worth.
Collecting theta is not free money any more than collecting rent on a house you might have to hand over is. You are being paid for the days because the days carry the chance of a move. Theta and gamma are the same coin, and nothing separates them.
Why bother, then
Four honest reasons, none of which is "free income".
You are paid for a risk you were already taking. If you own 100 shares of something you plan to hold anyway, the covered call charges rent on exposure that is already on the books. That is the strongest case in the whole strategy family.
The odds are lopsided in a way that suits how people behave. Most trades work. That is worth something psychologically even when the expected value is flat, and it is why the psychology page exists.
A small structural load exists and is yours if you keep costs down. Two points of volatility, minus the spread. Which the spread can eat entirely on a badly chosen strike.
You get paid to set a limit order. The cash-secured put version: you were going to bid $34 for DKNG anyway, and someone paid you $64 to make the bid firm for 45 days. That framing is the most defensible one on the site.
And the unflattering counterweight, published on the same site: the at-the-money Cboe BuyWrite index returned 7.91 percent annualized over ten years against 15.50 percent for the S&P 500 with dividends. The full comparison is here, caveats included.
OptionsKing scores every candidate strike on a deterministic 0 to 100 scale, blends that score with the return on the capital the trade ties up, and shows you the highest-ranked handful. There is no minimum score. How it works covers what the ranking does and does not tell you.
Questions people actually ask
Why does someone pay me a premium to sell an option?
Because you are taking an obligation they want to be rid of, or providing leverage they cannot get elsewhere. The largest single category is insurance: somebody holding stock wants downside protection and you are writing the policy.
Is selling options positive expected value?
Not from the contract itself, which prices to roughly zero expected profit. The edge is the variance risk premium, implied volatility running a couple of points above realized, worth about $9 on the worked position over 45 days.
Is time decay an edge for option sellers?
No, it is a price. The market already knows how many days are left and charges for them, which is why a 73-day contract costs six times a 17-day one at the same strike. You are paid for the days because the days carry risk.
If the expected value is zero, why sell options at all?
Because a covered call charges rent on exposure you already hold, because a cash-secured put pays you for a limit order you were going to place, and because a small structural volatility premium exists if your execution costs stay below it.
Sources
Rules and thresholds above were checked against these documents on August 4, 2026. Exchange and broker rules change. Confirm anything you are about to act on with your own broker.
Keep reading
Do the math on your own trade
Every price in this article is an illustrative worked example, not a quote. Read Options basics for the rest of the series, and the disclaimer before you act on any of it. Selling options carries real risk of loss, and the loss can be far larger than the premium you collected.