# Kalshi World Cup — Mispricing Audit (v2, experimental)

Date: 2026-06-17
Source: https://kalshi-audits.pages.dev/2026-06-17-kalshi-world-cup-mispricing-audit-v2

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# Kalshi World Cup — Mispricing Audit

v2 (experimental) methodology · report date **2026-06-17** · suggested book **$1,000** · horizon 45 days

 0. DISCLAIMER 

  ⚠️ Experimental v2 methodology — still being tested. This audit uses the v2 format
  (explicit probability estimates, entry-context capture, cluster-capped sizing, logged rejects).
  Its picks are shadow-tracked for research and do not count toward the public
  performance track record. Probabilities below are subjective; every contract can resolve to zero.

 1. METHOD 

## 1. How this was researched

**Mode: theme-match.** Kalshi's `trading_events.category` has no "World Cup" value
(the closest is the catch-all `Sports` bucket, 21,978 events). So I treated
`World Cup` as a **theme** and selected markets by keyword across all categories,
searching `trading_events.title`, `trading_markets.title` and
`trading_markets.rules` for: world cup fifa
plus the Kalshi series prefixes KXWC* KXFIFAW*
KXTRUMPWORLDCUP KXSOCCERPLAY*. That returned ~90 series
and several thousand markets — overwhelmingly per-match micro-props (goals, corners, spreads, "first
to score") that fail the liquidity/spread screen.

**Screen.** From that universe I kept only durable, researchable outcome markets closing inside the
horizon, then cut anything with 24h volume < 1,500, a bid/ask spread > 5¢, "what will X say"/mention
noise, or a price already pinned ≥95¢ / ≤5¢. Live top-of-book, depth and 24h volume came from the Kalshi
public API; 14-day price history from the 5-minute snapshot mirror; standings, FIFA rankings and Trump's
attendance plans from primary press (sourced in §6).

**Context that shapes everything below:** the tournament is mid-group-stage on report day — most teams
have played just **one** match — so "price lags a known result" edges barely exist yet. The format is
unusually forgiving: **32 of 48 teams advance** (12 group winners + 12 runners-up + 8 best third-place
teams). The defensible edges this week are therefore **structural / historical** and
**compounding-probability** mispricings, not settled outcomes.

**Already-published picks excluded.** `KXTRUMPATTEND` (Trump attends the Final) is already a
live pick in users' feeds and is excluded from new picks here; the related Trump match-count ladder is logged
in §5.

 2. MARKETS REVIEWED 

## 2. Markets reviewed

| Ticker | Market | YES bid/ask | 24h vol | Verdict |
|---|---|---|---|---|
| KXWCFIFATOP10-26KO-Y | Every FIFA top-10 team reaches knockouts | 69 / 73 | 796* | PICK — BUY NO |
| KXWCNOEURSA-26-Y | Non-Europe/SA team wins the World Cup | 10 / 11 | 3,235 | PICK — BUY NO |
| KXWCGROUPQUAL-26H-URU | Uruguay qualifies from Group H | 78 / 80 | 17,599 | PICK — BUY YES |
| KXWCFIFATOP10-26SF-Y | A non-top-10 team reaches the semifinals | 65 / 68 | 3,262 | PICK — BUY YES |
| KXWCFIFATOP10-26WIN-Y | Winner is a non-top-10 team | 15 / 16 | 862 | PASS — fair |
| KXTRUMPWORLDCUP-26-DJT-1 | Trump attends ≥1 match | 92 / 93 | 4,554 | PASS — thin edge |
| KXTRUMPWORLDCUP-26-DJT-2 | Trump attends ≥2 matches | 41 / 45 | 1,380 | PASS — unfillable |
| KXTRUMPWORLDCUP-26-DJT-3 | Trump attends ≥3 matches | 14 / 16 | 1,200 | PASS — fair |
| KXWCGROUPQUAL-26F-NED | Netherlands qualifies from Group F | 89 / 90 | 4,344 | PASS — efficient |
| KXWCGROUPQUAL-26E-ECU | Ecuador qualifies from Group E | 75 / 76 | 19,498 | PASS — fair |
| KXWCGSUNDEFEATED-26-ARG | Argentina win all 3 group games | 52 / 58 | 3,046 | PASS — spread >5¢ |
| KXWCSTAGE-26HOST-R16 | Furthest host run = exactly R16 | 37 / 38 | 1,586 | PASS — path-dep. |
| KXWCATTENDSWIFT-26JUL20-TAY | Taylor Swift attends a match | 50 / 51 | 654 | PASS — coin flip |
| KXWCSTAGE-26EUR-FW/FL | European confederation furthest-stage set | wide | <150 | PASS — illiquid |

*KO-Y 24h volume has tapered post-Matchday-1, but its NO side shows ~4,989 contracts of depth at/under my 33¢ limit (see pick 2) — book depth, not the trailing volume print, is the binding constraint for a $1,000 book.

 3. PICKS 

## 3. Picks — detail & thesis

Ordered highest-conviction first. Conviction reflects how defensible the edge is
(source quality + how unambiguous the resolution rule is + orderbook depth), not the raw EV.

 PICK 1 

### Pick 1 — KXWCNOEURSA-26-Y · BUY NO @ 0.90 · High conviction

"Will the winner of the 2026 Men's FIFA World Cup be from any continent other than Europe or South America?" — I take **NO** (a UEFA or CONMEBOL team wins). Cluster: champion-confederation

Current YES 10/11 → NO 89/90
My prob (NO) 95%
Market-implied (NO) ~89%
Edge +5¢ / +6% EV
Resolves 2026-07-27

**Mispricing thesis.** In 21 men's World Cups the trophy has been won only by European nations
(12 times) or South American nations (9). No CONCACAF, AFC or CAF side has ever won. The market is paying
**11¢ for the outcome that has never once happened**, so NO at ~90¢ is a historically-grounded near-certainty.

**Evidence.**

- Every champion 1930–2022 has been UEFA or CONMEBOL (Wikipedia, list of finals).
- The 2026 favorites board is wall-to-wall Europe/SA: France (~+420), Spain (~+500), England (~+700),
      Portugal (~+750), Argentina (~+900), Brazil — per FOX Sports / VegasInsider mid-June lines.
- The only credible non-Euro/SA contenders are hosts USA & Mexico and Morocco (FIFA #8) — all priced
      as long shots, not favorites.

Why 95%, not 99%: the 2026 edition genuinely raises the non-Euro/SA tail —
two hosts play every knockout on home soil and Morocco reached the 2022 semifinals. I shade the historical
~100% down to 95% to respect that. NO at 90¢ still clears it by ~5¢.
Cleanest way this loses: a host (USA or Mexico) or Morocco rides home advantage and a
forgiving 48-team bracket all the way to lifting the trophy — a single 11%-priced tail.

Liquidity ~500 contracts fillable at NO ≤90¢
24h vol 3,235
Open interest 54,982
14-day YES ranged 8–16¢, sits ~11¢ now

 PICK 2 

### Pick 2 — KXWCFIFATOP10-26KO-Y · BUY NO @ 0.33 · Medium conviction

"Will every country ranked in the FIFA top 10 (at issuance) reach the knockout stage?" — I take **NO** (at least one top-10 team fails to advance). Cluster: fifa-top10-upsets

Current YES 69/73 → NO ~31
My prob (NO) 55%
Market-implied (NO) ~30%
Edge +12¢ / +36% EV
Effectively decided ~June 27 (group stage end)

**Mispricing thesis.** The top-10 at issuance (FIFA, April 2026) are France, Spain, Argentina, England,
Portugal, Brazil, Netherlands, Morocco, Belgium, Germany. The market prices ~70% that **all ten** clear
the group stage. But "all ten" is a product of ten near-independent survival odds. Even at a generous 93%
per-team advance rate, P(all ten) ≈ 0.93¹⁰ ≈ **48%**. Casual bettors anchor on each team's high individual
odds and under-weight the compounding — the classic "at least one of many" trap. NO at ~31¢ therefore looks
~14–24¢ cheap.

**Evidence.**

- Five of the ten already dropped points on Matchday 1: Spain (drew Cape Verde), Brazil (drew Morocco),
      Netherlands (drew Japan), Belgium (group-wide draws), Morocco (drew Brazil) — per CBS group standings, June 17.
- Brazil _and_ Morocco share Group C with a Scotland side that already won its opener — a real chance
      one of the two top-10 teams gets squeezed into a non-qualifying spot.
- Recent precedent: reigning-elite Germany and Belgium both failed to advance in 2022; Germany also went
      out in the 2018 group stage. Top-ranked ≠ safe.

Calibration note: the offsetting force is the 32-of-48 format — a top-10 team must finish
bottom-2 of its group to fail, which is rare per team. I therefore don't claim NO is a lock; I price P(all ten
advance) at ~45% (so NO ≈ 55%), deliberately conservative versus the naïve 0.93¹⁰. The 14-day tape backs the
uncertainty: YES has swung between 62¢ and 76¢ and currently sits at the rich end.
Cleanest way this loses: the forgiving bracket bails everyone out and all ten top
seeds scrape into the round of 32 — exactly what a YES holder is paying ~70¢ for.

Liquidity ~4,989 contracts fillable at NO ≤33¢
24h vol 796 (down from ~7,900 at MD1)
Open interest 15,449
14-day YES 62–76¢, now ~69–70¢

 PICK 3 

### Pick 3 — KXWCGROUPQUAL-26H-URU · BUY YES @ 0.80 · Medium conviction

"Will Uruguay qualify from World Cup Group H?" — I take **YES**. Cluster: group-h-advance

Current YES 78/80
My prob (YES) 85%
Market-implied ~79%
Edge +5¢ / +6% EV
Resolves 2026-07-11

**Mispricing thesis.** Uruguay fell from ~88¢ to ~77¢ in the 48 hours after a Matchday-1 draw with Saudi
Arabia. In a format that advances 32 of 48 teams, a single dropped point should not cut a top-15 nation's
qualification probability by ten points. This reads as an overreaction to fade.

**Evidence.**

- Group H = Spain, Uruguay, Cape Verde, Saudi Arabia. Two qualify automatically; an 8-of-12 best-third
      slot is a further safety net. Uruguay is clearly the second-strongest side.
- All four teams sit on 1 point after MD1 (Spain were held by Cape Verde) — Uruguay is not behind on the
      table, only on pre-tournament expectation.
- Snapshot tape shows the 87→77 drop landed June 15–16 on heavy volume (17k–20k/day) — a sharp, news-driven
      move rather than slow repricing.

Cleanest way this loses: Cape Verde's opening draw with Spain was no fluke, they take
points off Uruguay too, and Uruguay slips into a non-qualifying third place. This is the one pick where the
price already moved on my thesis — the edge is partly a bet that the move overshot.

Liquidity ~9,681 contracts fillable at YES ≤80¢
24h vol 17,599
Open interest 80,922
14-day YES 87–89¢, repriced to ~77–80¢

 PICK 4 

### Pick 4 — KXWCFIFATOP10-26SF-Y · BUY YES @ 0.70 · Low conviction

"Will any non-top-10 team reach the semifinals?" — I take **YES**. Cluster: fifa-top10-upsets

Current YES 65/68
My prob (YES) 77%
Market-implied ~67%
Edge +7¢ / +10% EV
Resolves 2026-07-27

**Mispricing thesis.** There are four semifinal slots, a 48-team single-elimination bracket from the round
of 32, and a deep bench of dangerous non-top-10 sides (Croatia, Uruguay, Colombia, USA, Switzerland, Japan,
Ecuador). For _all four_ semifinalists to come from the top-10 list, the seeding has to hold cleanly across
five knockout rounds — rare. Recent World Cups almost always produce a non-elite semifinalist (Morocco 2022,
Croatia 2018 finalist).

Why this is only low conviction: the edge is partly eaten — the price already drifted
from ~50¢ to ~67¢ as the market caught on — and the book is thin (~171 contracts near my limit). So this is a
small add, sized to liquidity, not a core position.
Cleanest way this loses: a chalk tournament where the top seeds survive to a clean
top-10-only final four.

Liquidity ~171 contracts at YES ≤70¢ (thin)
24h vol 3,262
Open interest 88,225
14-day YES rose 50→67¢, now ~66–68¢

 4. PORTFOLIO 

## 4. Recommended $1,000 portfolio

Sized for a $1,000 book holding ~10% ($103) cash reserve for opportunistic adds. Limit prices are what I'd
actually pay; all four sit inside the available depth at those limits except pick 4, which is deliberately sized
down to its thin book.

| # | Ticker | Side | Limit | Contracts | Cost | My prob | Edge ¢ | EV % | Max payout | Cluster |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | KXWCNOEURSA-26-Y | NO | 90 | 333 | $299.70 | 95% | +5 | +6% | $333 | champion-confederation |
| 2 | KXWCFIFATOP10-26KO-Y | NO | 33 | 750 | $247.50 | 55% | +12 | +36% | $750 | fifa-top10-upsets |
| 3 | KXWCGROUPQUAL-26H-URU | YES | 80 | 325 | $260.00 | 85% | +5 | +6% | $325 | group-h-advance |
| 4 | KXWCFIFATOP10-26SF-Y | YES | 70 | 128 | $89.60 | 77% | +7 | +10% | $128 | fifa-top10-upsets |
| **Total deployed** | **$896.80** |  |  | **~+15%** | **$1,536** |  |  |  |  |  |

Deployed $896.80 (89.7%) · cash reserve $103.20 (10.3%) · blended expected value ≈ **+$132**
(≈ +14.7%) · max payout if all four win $1,536. Expected payout (Σ prob × contracts) ≈ $1,029.

### Cluster exposure (cap = 35% of $1,000 = $350)

| Cluster | Picks | Cost | % of capital | Cap | Status |
|---|---|---|---|---|---|
| fifa-top10-upsets | KO-Y NO + SF-Y YES | $337.10 | 33.7% | 35% | ✓ under cap |
| champion-confederation | NOEURSA NO | $299.70 | 30.0% | 35% | ✓ under cap |
| group-h-advance | Uruguay YES | $260.00 | 26.0% | 35% | ✓ under cap |
| cash reserve | — | $103.20 | 10.3% | — | held back |

Picks 2 and 4 share the **fifa-top10-upsets** cluster: both express the single worldview that the
FIFA top-10 ranking under-predicts chaos in a 48-team field. They are not perfectly correlated (early flop vs.
late overperformance can both happen or neither), but I cap them jointly so that one "the seeds held perfectly"
tournament can't sink both legs unchecked.

### Risk profile

- **Worst case** (all four lose): −$896.80. Requires, simultaneously, a Euro/SA team _not_ winning,
      all ten top seeds advancing, Uruguay going out, and a top-10-only final four — a contradictory bundle
      (the same chalk tournament that advances all ten seeds also makes pick 1's NO safer), so a true total
      wipeout is very unlikely.
- **Best case** (all four win): +$639 net ($1,536 payout − $896.80 cost).
- **Most-likely outcome:** picks 1 and 3 settle YES-of-my-side; pick 2 is the coin-flip carrying most of
      the dollar edge; pick 4 is a small lottery-ish add. Modal net result is a modest gain driven by pick 2.
- **Concentration:** by underlying thesis no cluster exceeds 33.7%; the largest single-event risk is the
      group-stage knockout cutoff (pick 2), naturally hedged against pick 1 (a chaotic group stage that sinks a
      top seed does not help a non-Euro/SA team lift the cup).

### Execution notes

- **Limit orders only.** Pick 2: rest NO buys at 31–33¢ (book holds ~5k there); do not chase above 35¢.
      Pick 1: NO buys at 90¢ — ~500 contracts available, refill as the maker replenishes rather than lifting to 91¢.
- **Pick 4 is liquidity-capped:** ~171 contracts near 70¢. Fill what's there; do not pay above 71¢ — the
      7¢ edge evaporates by 73¢.
- **Watchlist triggers:** if KXWCGSUNDEFEATED-26-ARG spread tightens below 5¢, revisit. If Uruguay loses
      its Matchday-2 fixture, re-underwrite pick 3 immediately (the overreaction thesis would be wrong).
- **What invalidates each thesis:** Pick 1 — a host or Morocco reaching the final as favorite. Pick 2 —
      all ten top seeds clinching by Matchday 2 (exit NO into strength). Pick 3 — Uruguay losing MD2. Pick 4 —
      both halves of the bracket trending all-top-10 into the quarterfinals.
- **Hedge:** picks 1 and 2 are partly self-hedging across the chalk/chaos axis; no extra hedge needed for a
      book this small.

 5. REJECTS 

## 5. What I rejected and why

In v2 these are machine-logged to `picks.json` and shadow-tracked to settlement, so
we can test whether the selection screen actually adds skill. If the rejects perform as well as the picks, the
screen adds nothing — a finding worth knowing either way.

| Ticker | Would-be side | Price | My prob | Why rejected |
|---|---|---|---|---|
| KXWCFIFATOP10-26WIN-Y | YES | 16 | 15% | Fairly priced; 24h volume under the 1,500 screen. |
| KXTRUMPWORLDCUP-26-DJT-2 | YES | 46 | 52% | Coin-flip thesis and **zero depth at the 45¢ target** (best NO bid 54 ⇒ can't buy YES under 46¢); edge below slippage. |
| KXTRUMPWORLDCUP-26-DJT-1 | YES | 93 | 95% | He's confirmed to plan the Final, but ~2¢ edge at 93¢ is below the spread cost. |
| KXTRUMPWORLDCUP-26-DJT-3 | YES | 16 | 15% | Fairly priced; he skipped the USA opener, so three appearances is a real long shot. |
| KXWCGROUPQUAL-26E-ECU | YES | 76 | 74% | Fair after MD1; Germany & Ivory Coast both won, leaving Ecuador third on tie-breakers. |
| KXWCGROUPQUAL-26F-NED | YES | 90 | 92% | My ~92% sits inside the 89/90 quote; ~2¢ edge below slippage. |
| KXWCGSUNDEFEATED-26-ARG | YES | 58 | 50% | 6¢ spread (52/58) fails the 5¢ screen; "win all three" is a coin flip even for Argentina. |
| KXWCSTAGE-26HOST-R16 | YES | 38 | 38% | Exact-bucket outcome (reach R16 but no host reaches QF) — too path-dependent to defend. |
| KXWCATTENDSWIFT-26JUL20-TAY | YES | 51 | 50% | True coin flip, no public-information edge, volume under the 1,500 screen. |

 6. SOURCES 

## 6. Sources

- Kalshi mirror DB (read-only query API) — live market metadata, rules text and 5-minute price/volume snapshots.
- Kalshi public API — live orderbook depth, top-of-book and open interest: [api.elections.kalshi.com/trade-api/v2](https://api.elections.kalshi.com/trade-api/v2)
- CBS Sports — 2026 World Cup group standings & results (June 17): [cbssports.com](https://www.cbssports.com/soccer/news/world-cup-group-standings-table-results/)
- Olympics.com — 2026 World Cup schedule, scores & standings: [olympics.com](https://www.olympics.com/en/news/fifa-world-cup-2026-schedule-results-scores-standings-list)
- ESPN — FIFA Men's World Ranking, April 2026 (top-10 at issuance): [espn.co.uk](https://www.espn.co.uk/football/story/_/id/46664763/fifa-mens-top-50-world-rankings)
- FOX Sports — 2026 World Cup champion odds (mid-June): [foxsports.com](https://www.foxsports.com/stories/soccer/world-cup-2026-champion-odds)
- NBC New York — "Trump plans to attend World Cup final in New Jersey": [nbcnewyork.com](https://www.nbcnewyork.com/world-cup/trump-world-cup-final-fifa-metlife-stadium/6512369/)
- Wikipedia — FIFA World Cup (list of champions, all Europe/South America): [en.wikipedia.org/wiki/FIFA_World_Cup](https://en.wikipedia.org/wiki/FIFA_World_Cup)

**Data sources:** Kalshi read-only DB mirror (metadata, rules, 5-minute snapshots) and the Kalshi public
trade API (live orderbook/depth/OI), grounded against the primary press linked above.

**Disclaimer:** This is an experimental v2 research artifact, not investment advice. All probabilities are
subjective estimates; prediction-market contracts can and do resolve to zero. v2 picks are shadow-tracked and do
not count toward the public kalshi-audits performance record. Prices and depth are point-in-time as of
2026-06-17 and will move.