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What Is a Price Scenario? Reading the Map of the Next Ten Minutes

Every live chart tells you where the price has been. A price scenario tells you where it goes next, conditionally: if the runner scores, this number; if the inning dies, that one. It is the difference between watching the market and being early to it.

Picture the moment that defines live trading. Bases loaded, two outs, one-run game, and the home team's contract sits at 42¢. You know something big is about to happen to that number. What you probably do not know is how big, in which direction, for each way the at-bat can end. Guessing that under pressure, in the ten seconds before the pitch, is how live traders donate money.

A price scenario is the answer computed in advance, a conditional map of the market: "if X happens next, the price goes to A; if Y happens instead, it goes to B." This article is about that idea, how to read one, and what it changes.

The mental model: prices move in branches

A prediction market price is a probability, and probabilities update on events, not on vibes (why these prices jump the way they do). At any moment of a live game, the immediate future is a small set of branches. In our bases-loaded moment, roughly: strikeout or out ends the threat; a single scores one or two; a grand slam detonates the game.

Each branch, if it happens, produces a knowable new game state, and each new game state implies a new fair probability. Which means each branch has a price attached to it before it happens. The market will land near that price within seconds of the event; the scenario map just does the arithmetic early. A scenario for our moment might read:

Out, inning over: home team drops to ~33¢
Single, one run scores: climbs to ~55¢
Extra-base hit, two score: ~68¢
Grand slam: ~85¢

Nothing in that list predicts the pitch. That is the entire point. A scenario map stays agnostic about what happens while being precise about what each outcome would mean.

How to read a scenario card

On capper.app, live games show scenario cards alongside the chart, and the design leads with the number that matters most: the swing, how far the price moves if that branch lands, shown big, green or red, before the destination price. A card reading "▲ +17 pts" is telling you: this branch, if it happens, is a seventeen-point repricing event.

Hovering a scenario draws its projection right onto the price chart, a dashed line from now to the landing spot, so you can see the branch against the price history that led here. And the biggest-swing branch is flagged, because that single number answers the live trader's most important question: how much chaos is possible on the next play?

Two reading habits worth building:

Compare the swings, not just the destinations. Two branches landing at 55¢ and 60¢ are similar outcomes. A card showing +3 next to a card showing +22 is telling you the game has a live grenade in it, and which pin is out.

Watch the map change between events. The same "next goal" branch is worth 12 points early and 30 points late; scenarios recompute as the clock and score evolve (time is always trading). When all the branches flatten toward zero, the market is telling you the game is functionally decided. When one branch stays enormous while the price sits near an extreme, it is telling you the opposite: the 2% team with a 50-point walk-off branch is not dead, it is coiled.

What price scenarios are for

Pre-deciding your exits. The core discipline of live trading is choosing your prices before the chaos, not during it (the market-order-into-a-spike mistake). A scenario map turns "I'll sell if things look good" into "the single lands this at 55, and 55 is my exit, so my limit order is already there." You stop negotiating with yourself mid-play.

Being early to high-leverage moments. Scenario maps make leverage visible before it resolves. Bases loaded with two outs, a one-goal match entering stoppage time, a late fourth-quarter drive: these moments announce themselves with a giant swing number. Traders who see "+22 possible" while everyone else sees a tied game are positioned before the repricing, not chasing it. This is the "trade the reaction" method from the volatility article, given an instrument panel.

Sizing risk honestly. The downside branch is on the map too. If the out drops your contract 9 points and you cannot stomach 9 points, you are oversized. That arithmetic is available before the pitch; most people just never do it.

Sanity-checking a panic. In the seconds after a shock, spreads gape and first prints overshoot. If the scenario map said "goal lands this at 82" and panic prints are flying at 91, you know which side of that trade you would rather be on.

What price scenarios are not

Honesty section. A scenario map is a conditional tool, and its limits are part of using it well.

It does not predict which branch happens. It never claims the single is coming; it claims what the single would cost or pay.

It is an estimate, not an oracle. Scenario prices come from game-state math anchored to the live market. The market's own landing spot after an event can differ by a few points, especially in the first chaotic seconds. The map is a flashlight, not a contract.

And it is not a signal service. Nothing on capper tells you "trade now." The scenarios put the same conditional arithmetic in front of you that professionals compute for themselves, and what you do with it stays your call.

The bottom line

The final score is one prediction, and it is the hardest one on the board. The next repricing is a smaller, nearer, more answerable question, and it is where live traders actually live. A price scenario is that question answered in advance: every branch of the next few minutes, priced before it happens. Watch one live game with the scenario map open on capper.app, free, and the chart stops being a squiggle and becomes a game tree you can read.

Educational information, not financial advice. Prediction markets involve risk of loss, and their legal status varies by location and changes over time.