Who will be the Heavyweight Title on Dec 31, 2026?

Prediction markets currently give a 6% probability that Who will be the Heavyweight Title on Dec 31, 2026?. This contract trades at 6¢ on Kalshi, closing December 31, 2026. This market shows extreme illiquidity with zero 24-hour volume despite a $2,786 open interest, suggesting minimal trader interest in a highly specific outcome (Waldo Cortes Acosta holding the UFC Heavyweight title by year-end 2026).

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6¢
Bid/Ask 4/5¢·Spread 1¢·Vol $0·OI $2,801.63·Closes Dec 31, 2026·254d remaining
KXUFCHEAVYWEIGHTTITLE-26-WACO

Analysis

5d ago

This market shows extreme illiquidity with zero 24-hour volume despite a $2,786 open interest, suggesting minimal trader interest in a highly specific outcome (Waldo Cortes Acosta holding the UFC Heavyweight title by year-end 2026). The 7¢ price implies only a 7% probability, yet the implied yield of 3,385.9% on the Yes side is extraordinarily high—a reflection of the tiny position size and wide 2¢ spread rather than genuine market conviction. With 259 days to expiration and a moderate Cliff Risk Index of 24, this appears to be a niche bet with significant execution risk, as Acosta would need to capture the title within a narrow timeframe against established contenders.

Cross-venue

Also on polymarket at 22¢-16¢)

View counterpart →Match confidence 0.94IY 511.5%Close-time delta 17h

Resolution rules

If Waldo Cortes Acosta is the UFC Heavyweight Title on Dec 31, 2026 at 12:00 PM ET, then the market resolves to Yes.

Indicators

IY (Yes) 3453.0%
IY (No) 6.0%
Adj IY 1727%
CRI 24
Overround -0.2%
▶ Full indicator table (5)
IndicatorValue
IY (Yes)3453.0%
IY (No)6.0%
Adj IY1727%
CRI24
Overround-0.2%

Regime

Label
neutral
Score
0.341
Spread
1¢
Computed
4/22/2026, 12:32:01 AM
Observability lowEvent type sports
Indicators computed 4/22/2026, 12:23:18 AM

Trade

View on kalshisf trade KXUFCHEAVYWEIGHTTITLE-26-WACO yes 100

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