Will United Russia (ER) gain the most seats in the next Russian parliamentary election?99%18.3Russia Elections: United Russia Wins Every Region?94%24.1Will Nicolás Maduro be the leader of Venezuela end of 2026?60%18.0US x Iran ceasefire continues through October 31?55%10.5Will Delcy Rodríguez be the leader of Venezuela end of 2026?39%12.5Will Bitcoin reach $82,500 in September?82%7.0Will WTI Crude Oil (WTI) hit (HIGH) $105 in September?23%13.0Will Bitcoin reach $85,000 in September?49%4.0US x Iran ceasefire continues through September 25?91%8.5US x Iran ceasefire continues through September 30?81%6.5Saudi Arabia military action against Yemen on September 28?16%32.5Trump x Greenland deal signed by September 23?85%11.5Will Bitcoin reach $87,500 in September?26%3.0Will ANOTHER millennium prize problem be solved in 2026?54%4.0At least 5 Millennium Prize problems solved by the end of 2026?8%37.7Will Bitcoin dip to $80,000 September 14-20?1%16.4
PolymarketPoliticsUpdated 8m ago

Will the Democrats win the South Carolina Senate race in 2026?

Market probability
13.5%
1 percentage point
over 24 hours14.5%13.5%
29 days until the event deadline
Deadline: October 20, 2026 at 10:33 PM ET

Confirmed repricing; the market has settled at the new level.

The pricing is supported by healthy trading volume and market depth, a tight spread.

How credible was the move?

Three separate questions — a move can be genuine while the latest price is still settling. Methodology →

Move validity

Is the move backed by real trading and depth?

Strong

The pricing is supported by healthy trading volume and market depth, a tight spread.

Consensus stability

Has the market settled at the new probability?

Stable

The probability has held near its current level over the past several hours.

Contract clarity

Will the rules resolve without ambiguity?

High

The resolution rules are relatively specific, with a named source and a defined deadline.

Recent trade activity$20K traded

From the latest trade tape (most recent 200 prints) — a live activity sample, not a lifetime total.

What this market actually measures

This market will resolve according to the winner of the 2026 midterm South Carolina U.S. Senate election, inclusive of any run-offs.

This summary shows the opening of the venue's official rules. ProbCast has not yet generated an independent plain-English interpretation for this contract — review the full rules before relying on it.

View full official resolution rules

This market will resolve according to the winner of the 2026 midterm South Carolina U.S. Senate election, inclusive of any run-offs. A candidate shall be considered to represent a party in the event that he or she is the nominee of the party in question. Candidates other than the Democratic or Republican nominee (e.g., Greens, Libertarian, independent) may be added at a later date. Candidates who run as independents will not be encompassed by the “Democrat” or “Republican” options regardless of any affiliation they may have with the party. The resolution source for this market is the Associated Press, Fox News, and NBC. This market will resolve once all three sources call the race for the same candidate. If all three sources haven’t called the race in this state for the same candidate, this market will resolve based on the official certification.

What could move this market next?

  • The market's deadline arrivesOctober 20, 2026 at 10:33 PM ET

    The contract must resolve based on what has happened by this date.

Derived from the contract's own mechanics as of Sep 20, 10:35 PM ET. ProbCast does not list scheduled meetings, announcements, or data releases it cannot verify.

Advanced analysis (experimental)

Research signals — these models are still accumulating the history needed for full validation, and they can disagree with the headline read. Model confidence: high · expected error ±11 pts.

Quote-drivenLegacy movement classifier: watch

What's happening

medium classifier confidence
Quote-driven

A tight, deep, quote-driven book with little executed flow. The price is stable but reflects resting quotes more than active trading.

  • Tight spread on a liquid, calm market

The latest price is a usable but caveated read — weigh it with the market state.

More details — reliability score, dynamics, durability
Reliability score
52Medium
Where the price path tends to go next207 observed
  • Stable consensus94%
  • Choppy / mean-reverting4%

Short-term motion of the price line (~1h), distinct from the environment above — not a prediction of the final outcome.

DurabilityHigh· half-life ~11h
PredictabilityStable

Secondary read: leaning toward Trading normally.

A read-only classification of the market environment — how much weight the current price deserves as a read of consensus. It describes conditions, never a trade.

Market data

24h volume

$55.9K

Liquidity

$100.6K

Total volume

$212.1K

Category
Politics
Venue
Polymarket
Open interest
Spread
1.0 pts
Best bid
13.0%
Best ask
14.0%
7-day range
13.5% – 14.5%
Resolves
Oct 20, 2026
Change (pts)1H0.06H-1.024H-1.07D-1.0

Related markets