SimpleFunctions
PolymarketAug 31, 2026114 days left

Will the number of Democratic House members who retire in 2026 be between 28 and 31 inclusive?

This contract is priced at 18¢ on Polymarket. Current book: 15¢ bid, 21¢ ask, 6¢ spread.

Implied probability

18¢
$1K volume
$3K liquidity
4% of event volume

Event outcomes

7

Family volume

$32K

Best sibling

<20 2¢

Ticker

0x8b02a7cf…f988

Market snapshot

28–31 in market context.

This page tracks the Polymarket contract for Will the number of Democratic House members who retire in 2026 be between 28 and 31 inclusive?. The displayed quote is 18¢ from the latest venue quote. The cached market record reports reported volume of $1K. In the How many Democratic House members not running in 2026? family, this outcome ranks #3 of 7 by current quote across 7 sibling outcomes. The indicator bundle was refreshed May 9, 2026, 4:23 AM UTC.

Outcome

28–31

Family rank

#3 of 7

Venue

Polymarket

Current quote

18¢

Quote source

Latest venue quote

Timing

Listed until Aug 31, 2026

Reported volume

$1K

Family context

7 outcomes · How many Democratic House members not running in 2026?

Quote range

2¢-27¢

Family leader

24–27 27¢

Last updated

May 9, 2026, 4:23 AM UTC · 1m ago

Venue identifier: 0x8b02a7cf1b24a5aa69c9eb526a22cd4518cd6906d2cb06d0c6127d80aabff988. Family volume: $32K.

Price history

18¢ current

3¢
25¢50¢75¢100¢
Apr 10, 2026May 7, 2026

Orderbook snapshot

15 / 21¢

Polymarket
6¢ spread
BidSize
15¢32
14¢777
9¢61
8¢309
5¢200
4¢257
3¢650
AskSize
21¢10
24¢38
31¢16
32¢13
42¢205
43¢5
44¢25
49¢11

Contract terms

Resolution, venue, and identifiers.

Resolution rules

The 2026 U.S. general elections for Congress are scheduled to be held on November 3, 2026. This market will resolve according to the total number of Democratic members of the U.S. House of Representatives who are considered to be retiring or not seeking reelection in 2026. For the purposes of this market, a member may be considered not to seek reelection if: • They publicly announce they are retiring from Congress and will not run for reelection to their current seat • They choose to run for a different elected office in 2026 instead of running for reelection to their current seat • They do not seek their party’s nomination for reelection to their current seat, meaning they neither file for reelection nor participate in their party’s nominating process (such as a primary, convention, or caucus) Only members whose current term is scheduled to end with the 2026 regular election for the House may qualify for this market. This market will not resolve until after the relevant final 2026 candidate filing deadline has passed in all states, which is expected to occur in late August 2026. The resolution source for this market will be a consensus of credible reporting.

Venue

Polymarket

Closes

Aug 31, 2026

Identifier

0x8b02a7cf…f988

Indicators

Yield, cliff risk, volatility, and regime.

IY (Yes)

1460.9%

IY (No)

70.4%

Adj IY

730%

CRI

5

Overround

0.0%

Regime

neutral

Score

0.409

Observability

medium

Event type

political

Full indicator table

1460.9%
70.4%
Adj IY
730%
5
Overround
0.0%

Odds pages

Related prediction questions

Browse odds

Related readings

Matched from SimpleFunctions blog, opinions, technical guides, concepts, and learn pages.

Browse library
Conceptmethodology

Maker / Taker Regime in Prediction Markets: How to Read the Orderbook State

Three regime states (maker-dominated, taker-dominated, neutral) and how to read which one a Kalshi or Polymarket contract is in. Strategy follows regime, not thesis.

Blogpolitics

US Midterm Elections 2026 Prediction Markets: Trading the Battle for Congress

A deep‑dive guide for prediction market traders on the 2026 US midterm elections: House and Senate control odds, key races, Trump’s impact, economic and approval scenarios, polling accuracy, and data‑driven trading strategies.

Blogmarkets

Kalshi vs Polymarket: Which Prediction Market Should You Trade?

In-depth comparison of Kalshi and Polymarket for prediction market traders. Regulatory structure, liquidity, fees, API tooling, and cross-venue trading with SimpleFunctions.

Opinionanalysis

Liquidity Availability Is the Real Edge in Prediction Markets

Implied yield, cliff risk, and overround all describe what to trade. Liquidity Availability Score describes whether the orderbook can absorb the trade. Why LAS is the indicator that decides who actually books P&L.

Conceptmethodology

Resolution Risk Premium: Pricing the Rule, Not the Outcome

When the resolution rule is fuzzy, the price is the market's estimate of how the rule will be interpreted, not the outcome's probability. Three case studies and the discount math.

Opinioncomparison

Kalshi vs Polymarket: Mechanics, Fees, Regulation, Liquidity (2026)

Side-by-side comparison of Kalshi and Polymarket in 2026. Fee math, calibration data, withdrawal speed, and a decision tree for picking the right venue.

SimpleFunctions context

Index, screen, query, and monitor.

Open index