I understand why the screen looks appealing, and for a lot of people it is not only appealing, it is the only door in. Covered calls need a hundred shares. On a four hundred dollar stock that is forty thousand dollars tied up for one contract. On a four dollar stock it is four hundred. If you are working a smaller account, low priced names are not a preference. They are the whole available universe.

The percentages look better too. Say a four dollar stock with a thirty cent call. That is 7.5 percent for the holding period. The same thirty cents on the four hundred dollar stock is 0.075 percent. Side by side, the cheap one looks like it pays a hundred times better for the same work.

Some of that gap is real. Some of it is not. The part that is not shows up in two places that never appear on the screen, and this is about telling them apart.

What the percentage is carrying

Premium as a share of the stock price is the only sensible way to compare a four dollar name against a hundred dollar one. It is also the number that makes low priced stocks look like a different asset class.

The first thing it is carrying is risk, and that part is honest. A stock trades at four dollars because the market thinks it might trade at two. The premium is the price of carrying that possibility, set by people who do this all day. You are being paid more because you are taking on more, and plenty of writers make that trade deliberately and do fine with it.

That is the same argument I made about fat premiums generally. The second thing the percentage is carrying is the part almost nobody writes about.

The tick grid

Options do not quote in continuous prices. They quote in fixed increments. Below three dollars the increment is a nickel. Above it, a dime. A penny in a handful of the most heavily traded names.

So on a contract worth ten cents, the tightest quote the market is permitted to show is five cents wide. That is not a wide market. That is the finest grid available. But it means the gap between what a buyer will pay and what a seller wants is half the contract's value before anything has gone wrong.

Cross that spread and the arithmetic changes shape in a way it never does higher up. Five cents off a ten cent premium is half of it. Five cents off a two dollar premium is a rounding error. Same five cents, completely different trade.

A distinction worth keeping straight

A cheap stock and a cheap contract are not the same thing.

A four dollar stock produces cheap contracts almost by necessity. A four hundred dollar stock produces cheap contracts too, out at the far strikes where very little trades. The tick grid problem belongs to the contract, not to the company.

Which means the share price is never the thing to look at. What matters is the premium you are actually quoted, and what the spread costs against it.

What we tested, and where I was wrong

My working theory was that on cheap contracts a wide percentage spread is mostly the grid talking. If the minimum tick is already half the price, then a large percentage spread on a dime contract tells you about increments rather than about whether anyone is trading. If that were true, the rule everyone repeats, avoid anything with a spread over some percentage, would mostly be flagging contracts that are cheap rather than contracts that are thin.

We tested it. Calls, at or out of the money, seven to sixty days to expiration, from 2023 to May 2026. About 5.5 million contract days. Contracts sorted inside each premium band by percentage spread, then a look at how much open interest sat in the tightest quarter against the widest.

It did not hold.

Inside the five to ten cent band, contracts in the tightest spread quarter carried a median open interest of 838. The widest quarter carried 76. Same price band, same kind of contract, eleven times the participation on one side of it.

The pattern held at every price level we looked at, and the gap grew as contracts got more expensive.

So the conventional caution is right and my theory was wrong. A wide spread on a cheap contract is still telling you something real about whether anyone is there.

What I look at instead

Two numbers, and neither one is a percentage.

The first is the spread in cents against the premium in cents. Not the ratio dressed up as a percentage. The actual money. If the quote is five cents wide and you are collecting ten, a poor fill takes half of it.

The second is open interest and volume, which tell you whether anyone is on the other side. That is the question the spread only hints at. A tight quote with no open interest behind it is a quote nobody has tested.

Neither of those is a threshold I can hand you. Where you draw the line depends on how large you trade and how often you expect to need out before expiration.

Where the friction does not bite

Here is the part that cuts the other way, and it matters more than any of the above.

The spread is a per trade cost, not a holding cost. Write a call and let it expire and you crossed once. Roll it every week and you crossed fifty times in a year, on a premium that was thin to start with.

So the same contract can be a perfectly reasonable write or a poor one depending entirely on how often you expect to touch it. One crossing measured against a month of premium is different arithmetic from one crossing measured against a week of it. If you are writing thirty to forty five days out on a name you intend to keep, the friction gets amortised over something. If you are in and out constantly on ten cent contracts, it does not.

Which means the real question is not whether the stock is cheap. It is how much turnover your approach needs. That is the part the percentage never shows you, in either direction.

The honest summary

Cheap stocks do carry higher premiums as a share of price, and that is real. What the percentage does not tell you is how much of it survives the trip.

You are being paid more because the risk is higher, which is a fair trade and yours to make. You keep less of it because the friction is worse, which is not on the screen anywhere. Both are true at the same time, and only one of them shows up in the number you sorted by.

I write calls on low priced names. Plenty of people run whole accounts that way and do perfectly well. The difference between doing it well and doing it badly is not which stock you pick. It is whether you counted the spread before you decided the yield was worth having.