Markets 101: Be the Market Maker, Not the Market Taker

Two seats at the table

Every market has two seats. The taker crosses the spread: he sees 38 bid / 41 ask and pays 41. The maker posts his own price: he rests a bid at 38 or 39 and waits for someone impatient to sell into him. Same contract, same outcome, two or three cents of difference. On a market you play fifty times a season, those cents are the entire difference between a winning year and a break-even one.

The books only sell you the taker seat. That’s the whole business model. A prediction market exchange gives you the other chair, and almost nobody sits in it.

Juice is the game, not a footnote

Look at tonight’s first-touchdown market at one major book: Gibbs +290, Cook +550, Allen +700, St. Brown +875, Moore +1150, Jameson Williams +1200, Kincaid +1300, LaPorta +1350, and a dozen more down to +8000. Convert every one of those to an implied probability and add them up. You get about 118% — before you account for “nobody scores” and before defensive or special-teams touchdowns, which are real outcomes that soak up a few more points of probability.

That means the true hold on this market is well north of 20%. You can be dead right about who scores first and still lose money over a season, because you’re paying a fifth of your stake to the house for the privilege of a guess.

Two responses. One: only play the middle and long end of that market, where the vig is spread over a bigger number and a genuine misprice can survive it. Two: stop paying the ask.

Be the maker

Touchdown markets are the easiest place in sports to make rather than take, for a structural reason: they reprice constantly and they reprice in one direction. Every drive that ends without your guy scoring, his ticket gets cheaper. Every incomplete pass, every punt, every sack — all of it walks the price down toward you.

So you don’t need to be early. You need to be patient.

The mechanics, in order:

1. Write down your own number before you look at a price. If you think LaPorta scores 28% of the time, your number is +257. Now go look.
2. Post a bid a cent or two under the best available price, not at it. On an exchange, that’s a resting limit order. It costs you nothing to sit there.
3. Let the game come to you. Kickoff, first possession, a three-and-out — the tickets you want are cheaper at 8:40 than they were at 8:15, unless your guy already scored. If he did, you saved the money you would have spent.
4. Size the fill, not the hope. If only half your order fills, that’s a half position, and that’s fine. Half a position at a good price beats a full position at a bad one.
5. Know when to quit making. Inactives, a steam move, and the closing minutes before kickoff are taker moments — if the information is already public and the price is running away from you, pay the ask or pass. Being stubborn about a penny while the market moves eight cents is not discipline, it’s ego.

Be the market maker, not the market taker. You can almost always get the touchdown stuff a cent or two cheaper than the screen — even if you have to wait a drive or a few plays to get hit.

The 60-second version

Where the board lives

• NFL player prop prices — Kalshi vs book consensus vs Novig → every strike Kalshi lists this week and where the best price for each side is
• The Ladder — every strike against the model’s distribution → our number is published only inside the 30–70% band where it is measured calibrated
• Probability converter — cents, American odds, devigged fair value → the tool for step one: write down your own number
• The graded record → every published call, settled against the exchange