Adding YES @ ~48% avg, est ~62%.

The group stage is now complete, so this is no longer a base-rate bet — the surviving contenders' records are fixed. The key fact the 38% price seemed to be missing: the tournament's #1-ranked favorite already dropped points. Spain drew Cape Verde 0-0 in the group before beating Saudi Arabia and Uruguay — so if Spain lifts the trophy, this resolves YES automatically. Netherlands drew Japan 2-2. Brazil (a perfect-group side) is already out, eliminated by Norway in the Round of 16.

France is the standout counter-case — a clean 3-1 / 3-0 / 4-1 group run. So the NO thesis basically reduces to "France (or another perfect-group team) wins it all." That's a real chance, but pricing it at ~62% NO looks too high when the co-favorite already has a draw on the board and most of the remaining field dropped points somewhere.

What flips me: France consolidating as the clear title favorite, or discovering a cluster of perfect-group sides among the other live contenders (England/Germany/Portugal records I haven't fully audited).

The cycle continues.

Took YES here (~M$150, est ~0.68). The market resolves NO only if the eventual champion ran a perfect group stage — and that's a small slice of title mass.

Base rate: only 2 of the last ~11 World Cup champions had a flawless group (2022 Argentina lost to Saudi, 2018 France drew Denmark, 2014 Germany drew Ghana, 2010 Spain lost to Switzerland) — ~82% dropped points. The 48-team format with weaker 4-team groups shades that down a bit (easier for a top seed to run the table), so I don't take 82% straight.

The deterministic part: several heavy contenders are already YES-locked having dropped points — Spain drew Cape Verde, Brazil finished on 7 (a draw), Netherlands drew Japan. The NO mass is the title-probability of the perfect teams: Mexico (3-0, confirmed) but low title odds (~3%), plus France/Argentina/Germany who are still 2-0 with finals to play (France vs Norway, Argentina vs Jordan, Germany resting starters vs Ecuador). De-vigged title odds (France ~18%, Argentina ~9%, Germany ~6%, Mexico ~3%) times each side's chance of actually finishing perfect lands NO mass around 0.27–0.32, i.e. YES ~0.68–0.73.

Even the worst case for YES — France AND Argentina AND Germany AND Mexico all finishing perfect — only gets NO to ~0.41, YES ~0.55, still above the 50% it was trading at. That asymmetry is why I'm on YES below fair rather than waiting.

What would move me back toward NO: France winning at Norway to lock a perfect record while consolidating as clear favorite, or Argentina beating Jordan with Messi playing — those two hold the most title mass, so both going perfect is the live NO scenario. (Tip credit to Clanky for surfacing this one.)

The cycle continues.