SimpleFunctions

Marco Rubio · Republican Presidential Nominee 2028

Marco Rubio is priced at 24¢ on Polymarket. Current book: 24¢ bid, 24¢ ask, 0¢ spread. This outcome ranks #1 of 16 inside Republican Presidential Nominee 2028.

Price history

24¢ current

+4¢
25¢50¢
Apr 26, 2026May 26, 2026

Contract brief

This market will resolve to “Yes” if the named individual wins and accepts the 2028 nomination of the Republican Party for U.S. president. Otherwise, this market will resolve to “No”. The resolution source for this market will be a consensus of official Republican Party sources. Any replacement of the Republican nominee before election day will not change the resolution of the market.

Outcome

Marco Rubio

Rank

#1 of 16

Leader

Marco Rubio 24¢

Range

1¢-24¢

Family volume

$430.5M

Identifier

0x21ad31a4...317d

May 26, 2026, 6:08 AM UTC · 27m ago

Implied probability

24¢
Latest venue quote
May 26, 2026, 6:08 AM UTC · 27m ago

Bid

24¢

Ask

24¢

Spread

24h volume

$52K

Family rank

#1 of 16

16 outcomes · Republican Presidential Nominee 2028

Closes

Nov 7, 2028

Family volume

$430.5M

Orderbook snapshot

24 / 24¢

Polymarket
0¢ spread
BidSize
24¢25
24¢2.1K
23¢1.2K
23¢100
23¢53
23¢6
23¢132
23¢4.3K
AskSize
24¢259
24¢59
24¢59
24¢59
24¢19
24¢19
24¢19
24¢288

Contract terms

What resolves this market.

YES condition

This market will resolve to “Yes” if the named individual wins and accepts the 2028 nomination of the Republican Party for U.S. president. Otherwise, this market will resolve to “No”. The resolution source for this market will be a consensus of official Republican Party sources. Any replacement of the Republican nominee before election day will not change the resolution of the market.

Venue

Polymarket

Closes

Nov 7, 2028

Identifier

0x21ad31a4…317d

SF Signal
SF Index
64.52
Regime
neutral

Cross-venue match

Similar contract on kalshi at 65¢, -41¢ versus this page.

View counterpart

Event family

Republican Presidential Nominee 2028.

The same race as a probability stack: rank, volume, and where this contract sits against the other outcomes.

Total volume

$430.5M

Outcomes

16

Highest price

Marco Rubio 24¢

Current share

2%

OutcomePriceVolume24hDepth

Marco Rubio

polymarket · 0x21ad31a46bfaa51650766eff6dc69c866959e32d965ffb116020e37694b6317d

24¢
$8.9M$52K0.0

Byron Donalds

polymarket · 0xd1747284d6048b2a3dcfbee489db405f36de18f9590197dd0e5c9f0c246bf050

1¢
$42.8M$35K

Mike Pence

polymarket · 0x41c6341dd79903aca4bb0c29f5a7976946c3774d2fd72f38cbb7de7092144520

1¢
$40.8M$52K

John Thune

polymarket · 0x7190eccbd0677d5d0ae8cdf598b37e945a346915c666dda11468dc9970657a56

1¢
$33.7M$48K

Kristi Noem

polymarket · 0x5f1b1caf70eb994bfff2986727a05a3ac9f7ec8b0da4017f7732596d023e5a07

1¢
$33.7M$48K

Tom Brady

polymarket · 0xf8dbde8b6e038775a673947e59da2de15a2127272b50b9877400fdbf7cfc3026

1¢
$31.3M$32K

Sarah Huckabee Sanders

polymarket · 0x00ad3bb5284b0b2314b1a2d42812fe292f606619c6278bd95c9d905816c240f6

1¢
$31.1M$48K

Elon Musk

polymarket · 0xfbb80ea5f8fc02ee7df8bd4f58790e1d04b874078a49a7b7028a74a2075100c9

1¢
$28.2M$19K

Katie Britt

polymarket · 0x61a1278884fa70d68d4bcaaf72fad55bbdb063cac28c6947472ca91635fab10f

1¢
$28.2M$111K

Kim Kardashian

polymarket · 0x414378275cb214b747245942be889ee1e077c56d1c00eb4d726629c95f22b5a5

1¢
$27.7M$26K

Elise Stefanik

polymarket · 0x655b4bfdfa55a95c24d6e9bf7e7cd62f1b57da9a1f4c7f40f090b8ba847dffa2

1¢
$26.6M$44K

Steve Bannon

polymarket · 0xd5659eea81cada0bac656f5a9099861786cbae6755e2e1ac2c9e9441908b551f

1¢
$21.6M$34K

Greg Abbott

polymarket · 0x214093035e429b91df322bd20c55d9f611f741f67472a63f7623a9afc0cffa57

1¢
$19.3M$42K

Josh Hawley

polymarket · 0x4d4bceee5f59f75230c6438f69fc913a6da7afa4098ce0734655045c02a730fc

1¢
$19.2M$31K

Matt Gaetz

polymarket · 0xf2cea45ec282af4f302d2ab85ede73678cd692ebf8c3ab6d52bfa5e19f44c553

1¢
$18.8M$44K

Rand Paul

polymarket · 0xd10bc768ede58b53ed400594240b0a0603134a32dab89ec823a18759cbc180ca

1¢
$18.6M$131K

Indicators

Yield, cliff risk, volatility, and regime.

IY (Yes)

129.0%

IY (No)

12.9%

Adj IY

65%

CRI

3

Overround

-0.2%

LAS

0.00

Regime

neutral

Score

0.341

Observability

low

Event type

political

Full indicator table

129.0%
12.9%
Adj IY
65%
3
Overround
-0.2%
LAS
0.00

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Index, screen, query, and monitor.

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How we compute these odds

SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.

For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.

Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.