Camps opened and closed. Rosters turned over. Injuries piled up through August the way they always do. Anyone who followed the news all summer would expect the Super Bowl board to look different from the one that stood in May.
It does not. Between our 18 May and 15 August boards, 17 of 32 teams moved less than 0.2 percentage points in implied Super Bowl probability. Twenty-four moved less than half a point.
The board that absorbed three months of transactions and headlines is, for practical purposes, the board it was in the spring.
What actually moved
Only three teams cleared a full percentage point in either direction: the LA Rams at +3.9pp, Seattle at -1.4pp and Cincinnati at +1.0pp. Everything else churned in fractions.
| Movement, 18 May to 15 August | Teams |
|---|---|
| Less than 0.2pp | 17 |
| 0.2pp or less | 21 |
| Less than 0.5pp | 24 |
| A full point or more | 3 |
The Rams move is the outlier among outliers, close to three times the next largest. Why each of the three moved is separate work; the point here is the shape of the distribution, and the shape says almost nothing happened.
Win totals tell a different story
The stillness looks stranger beside the win total market over the same window, where eight teams moved by a full game. Eight win totals moved a full game has the detail.
The two are not contradicting each other. A win total prices one team's expected output on its own, and adding or losing a starter can reasonably move that number a full game. A championship price is a bet on outrunning 31 other teams across a season and a bracket. One team improving does little to that price unless the improvement is large enough to reorder the field. Most offseason moves are not.
The board was quiet because the summer was quiet, not because anything was holding it still.
We checked whether a league-wide event might explain the flatness and found none. The officials' labour agreement was ratified on 8 May 2026, before this window opened, and it settled a dispute rather than starting one. The 2026 playing-rule changes approved that spring are procedural, covering replay-challenge mechanics and officiating corrections rather than competitive balance. Nothing else surfaced. The absence of a cause is part of the finding.
Prices held, and the best number still moved around
A near-frozen market is not one where checking stops paying. Between our 20 July and 15 August boards, the set of books sitting at the best Super Bowl price changed for 19 of 32 teams, inside a window where the number itself barely moved.
- Much of that churn costs a reader nothing. Often it is a second book matching a price that did not move, which leaves anyone already there exactly where they were.
- But it cannot be predicted in advance. The set moved on nearly two-thirds of the board in four weeks, and knowing which side of that a given team falls on requires looking.
- Stability across the market hides movement underneath it. A consensus figure averages five boards, which smooths out precisely the variation that checking is meant to catch. One book gets you the best price half the time has the cost of not looking.
The practical read on a quiet summer is about what actually moves a futures price. Not news volume, and not the accumulation of camp reports. Something large enough to reorder the field, and by that standard three months gave the board very little to react to.
The Forecaster holds the current board if the comparison is worth making again.
Figures compare our 18 May 2026 and 15 August 2026 boards across the five books quoting the Super Bowl market. Movement is the change in implied probability after converting American odds. Books do not all hang the same numbers, so another board may have moved differently.