Why Traders Sell Premium
Most options expire worthless, and sellers position themselves on that side of the ledger. The premium collected is immediate income, and time decay works for the seller every day the market sits still. Covered call writers in grains and metals, and producers selling calls against stored crops, are common examples of premium selling with a definable purpose.
Selling also fits hedging structures: the call in a fence exists to harvest premium that pays for the protective put underneath it.
The math tempts people. Options carry time decay, and decay accelerates as expiration approaches, so sellers feel the market paying them to wait. In quiet stretches that is exactly what happens. The error is mistaking a favorable tendency for a certainty, and sizing the position as if the quiet stretch will last forever.
What Can Go Wrong
Commodity markets gap. A drought scare, a war, or a surprise government report can move prices violently, and the seller of an option absorbs that move. A sold call on corn during a weather market, or a sold put on silver during a crash, can lose multiples of the premium in days. Short options also carry assignment risk and margin requirements that grow precisely when the position is losing.
Small, steady gains and occasional large losses is the honest description of the return profile. Anyone who tells you otherwise is selling something else.
Margin, Discipline, and Survival
Selling premium demands more structure than buying it. Size positions so the worst case is survivable, keep cash reserves for margin calls, define exit rules before entering, and consider buying cheap further-out options to cap the tail. Many accounts are blown up not by one bad idea but by adding to a losing short option position.
Keep written rules: the maximum number of contracts, the loss level where you exit, and the events, like major crop reports or central bank meetings, when you will not hold short premium. Decide these in a calm moment. The market will not offer you a calm moment later.
Futures and options trading involves substantial risk of loss and is not suitable for all investors. If you sell options, do it with a plan and a broker who will tell you when the plan is broken.