Lesson 1.2 — The Seller's Chair

Hook

In Lesson 1.1 a buyer paid $195.70 for the right to sell Apple at $290. That money did not evaporate — it went into someone's account the instant the trade filled. Someone on the other end agreed, in advance and for that $195.70 fee, to buy 100 shares of Apple — $29,000 of stock — if the buyer ever demands it. They cannot change their mind. They cannot hand the fee back and walk. Who signs up for that, and why is it a business rather than a dare? Because the person collecting the fee is not placing a bet. They are running the house.

The Concept

Every option contract has two chairs, and they are exact mirrors of each other. In Lesson 1.1 you sat in the buyer's chair. Now cross the table.

An option seller — also called the writer, because writing the contract is the act of selling it — takes the opposite side of everything the buyer holds. The buyer pays a premium and receives a right: a choice they can use or abandon. The seller collects that premium and takes on an obligation — a duty they are bound to, with no choice about it. If the buyer of our Apple put decides to exercise, the seller faces assignment — being required to fulfill the contract — and must buy the 100 shares at the agreed price. (What physically happens in an exercise and an assignment is the whole of Lesson 1.3; here you only need the shape of it.)

Hold the mirror up and the asymmetry is the entire lesson. The buyer paid up front, and that payment is the most they can ever lose — whatever happens, they can walk away, abandon the option, and be out only the premium. The seller was paid up front, and that payment is a promise. Collecting the premium is not a reward for a decision the seller gets to make later; collecting the premium is the decision. There is no walking away. The buyer bought optionality; the seller sold it and now owns the duty on the other end — a duty to buy $29,000 of stock, in exchange for a fee already banked.

So why do it? Because this is the business side of the contract — and a business is something you run with discipline, not a wager you place and hope on. Think of who you become when you sell: you are not the gambler at the table paying for a chance at a big payoff. You are the house — the operator who sets a price, collects a fee for carrying a risk, and stands behind the payout. The house does not run on avoiding risk; it runs on pricing it. It writes many contracts, collects many modest, up-front premiums, and carries the occasional large obligation when one comes due. That is not a promise that any one trade works out — a single Apple put can absolutely go against you, and later in this lesson you will see exactly how far. It is a description of your role: price-setter, fee-collector, obligation-carrier. The premium seller who already wheels puts by feel has been sitting in this chair for years, half-knowingly, collecting the fee without ever naming the seat. Naming it is the point. The seller's discipline — the whole of it — lives in one question: is the fee I am collecting enough for the obligation I am taking on? Everything Saber does, it does to answer that question.

Real Numbers

Take the same Apple put from Lesson 1.1 and read it from the seller's side. These are illustrative numbers — an illustration, not a recommendation or a track record.

You sell the AAPL $290 put with 30 days to expiration — DTE, the days left before the contract expires. The premium is $1.957 a share, and one equity option covers 100 shares, so you collect $1.957 × 100 = $195.70. It lands in your account today. In exchange, you stand ready — for all 30 days, whether you like it later or not — to buy 100 shares of Apple at $290 × 100 = $29,000 if the buyer exercises.

Now put the two sides in one frame.

The AAPL $290 put · 30 DTE	The buyer	The seller (you)
Cash at the open	Pays $195.70	Collects $195.70
What they hold	The right to sell 100 shares at $290	The obligation to buy 100 shares at $290 ($29,000)
Best case	Large, if Apple falls hard	Keeps the $195.70 — and that is the ceiling
Worst case	Loses the $195.70 premium, nothing more	Owns $29,000 of stock worth far less
Can they walk away?	Yes — abandons the option, out only $195.70	No — bound until expiration

Your maximum gain is the $195.70. Full stop. No version of this trade pays the seller more than the premium collected — that is the ceiling on the whole business. The floor is the honest part. If Apple somehow fell all the way to zero, you would be assigned 100 shares at $290, pay your $29,000, and hold stock worth nothing: $29,000 − $195.70 = $28,804.30 at risk. That is an extreme illustration, not a forecast — a stock like Apple does not go to zero in a month — but it is the true shape of the seat: a capped, certain fee collected against an obligation many times its size.

Scale it up with a second contract. Sell the MSFT $460 put at 35 DTE for a $3.70 premium: you collect $3.70 × 100 = $370 today, against an obligation to buy 100 shares at $460 × 100 = $46,000. The fee grew to $370; the commitment behind it grew to $46,000. For the allocator sizing a book against a cash balance, that ratio — a few hundred dollars collected against tens of thousands promised — is the number that matters, and it is why sizing, not premium-chasing, is the seller's real craft.

In Remora

Remora is built facing the seller's chair — nearly every screening surface is a list of contracts you could sell, not buy. Start where most sellers do: Screen ▾ → Options Screener → run a CSP screen. A CSP is a cash-secured put — a put sold with the cash reserved — the workhorse income trade Lesson 2.1 takes apart in full; for now, just know that every row the screen returns is a put contract offered to you from the seller's side.

Read one row and you are reading a seat you could take: a ticker, a strike, an expiration, a premium you would collect, and the obligation you would carry if assigned. The screen ranks those rows so the seller's question — is the fee worth the obligation? — has somewhere to start. You do not buy anything here. You shop the contracts you might write.

ScreenshotOptions Screener, puts (CSP) tab, result rows visible

The Mistake

Meet the dividend-brain seller. He sells the MSFT $460 put, watches $370 land in his account, and files it in his head next to a dividend — passive income, money for clicking a button. He never earmarks a dollar of cash for it and has no intention of ever owning Microsoft. But a dividend is a share of a company's profit handed to its owners; his $370 was a payment for something. He was paid to take on the obligation to buy $46,000 of stock, and that obligation was live the moment the trade filled — whether or not he read it, whether or not he set the cash aside. He did not buy a coupon. He sold a duty and pocketed the fee for it. The error is not that the trade is doomed; it is that he does not know what he sold. A fee you cannot explain is an obligation you have not measured.

Mantra

Sit in the seller's chair: you're the house.

Check

Q1. The buyer and the seller of one option hold mirror-image positions. What does the seller receive, and what does the seller give up, compared with the buyer?

Q2. You sell the MSFT $460 put for a $3.70 premium. In dollars, what is your maximum gain, and what is the size of the purchase you may be required to make?

Q3. A friend calls selling puts "free money — you get paid just for clicking." In one sentence, what is your reply, naming the obligation in dollars?

Q4. In what sense is the seller "the house," and what is the honest cost of that seat?