> ## Documentation Index
> Fetch the complete documentation index at: https://blog.opinion.trade/llms.txt
> Use this file to discover all available pages before exploring further.

# 2026 Midterm Prediction Market Results: How to Read Them

> Read Opinion's 2026 U.S. midterm market results correctly: market probability versus determined outcome, settlement status, official election sources and accuracy checks.

*Published: 2026-11-09 · Updated: 2026-11-09*

## Quick Answer

> [!NOTE]
>
> **As reviewed on November 9, Opinion marked the Democratic Party as `Won` in both its 2026 House-control and Senate-control markets, and marked `Democrats Sweep` as `Won` in the balance-of-power market.** These are Opinion market determinations under the contracts' rules—not official election certifications. On the [2026 Midterms hub](https://app.opinion.trade/midterms), a percentage is a current market-implied probability or lead, while **Won** indicates a determined market outcome.
>
> Use the market page to study probabilities and settlement. Use the relevant state election authority and official federal election resources to verify the public election result.

## Data Status

> [!NOTE]
>
> **Reviewed November 9, 2026.** The Opinion Midterms hub showed its House, Senate and balance-of-power control cards as determined, while several individual state and district markets still displayed percentages or settlement status. The hub publishes its own data-update timestamp. Statuses can change after this article is published, so the live hub and each market's written rules take priority.
>
> The FEC states that 2026 results are not immediately available from the commission and that state election offices certify results. At this review date, use state authorities—not an Opinion market label—as the source for official public results.

The hub covers three levels of election intent:

1. **Chamber control:** which party controls the House or Senate.
2. **Balance of power:** combinations of House and Senate control.
3. **Individual races:** selected Senate, House and governor contests.

This structure matters because a national control market can be determined even when a small number of individual races remain uncalled or unsettled.

## Probability, Result and Certification Are Different

| Label or source | What it means | What it does not mean |
| - | - | - |
| **62% market price** | Participants currently price the outcome at roughly 62%, subject to spread and liquidity | A guaranteed forecast or an official vote count |
| **Won on Opinion** | The market has determined an outcome under its published question, source and resolution procedure | State certification or a universal declaration for differently worded markets |
| **Settlement in progress** | Evidence or the resolution process is still being completed | That the displayed leader is final |
| **Official election result** | A result reported or certified by the responsible election authority | A statement about what the market price was before Election Day |

Always read the market title and rules. "Which party will control the Senate?" is not the same contract as "Who will win the Alaska Senate race?" and neither is interchangeable with a candidate's vote share.

## How to Read the Opinion Midterms Hub

### 1. Check the timestamp

Election pages can mix determined markets with races still awaiting a final source. Start with the page's **Data updated** timestamp before quoting a probability or result.

### 2. Separate a percentage from “Won”

A percentage is a market signal that may continue to move. **Won** is a result state. Do not write that a candidate "won" merely because a contract trades at 95% or 97%.

### 3. Open the individual market rules

The hub is an overview. The individual market page controls the exact question, source, deadline, treatment of recounts or corrections, and dispute process.

### 4. Check volume and the order book

Volume shows trading activity, not forecast quality. A probability from a thin order book can be less informative than the same headline percentage in a deeper market. Review spread and available depth before treating the displayed price as executable.

### 5. Verify the public result independently

For public election reporting, follow the relevant state election office. The Federal Election Commission maintains links to election and voting resources, but election administration and certification are handled through the applicable authorities.

## How to Evaluate Whether a Market Was Accurate

An outcome alone does not prove that a market was well calibrated. To evaluate a 2026 midterm market, record:

| Field | Why it matters |
| - | - |
| Market question and URL | Prevents comparing differently worded contracts |
| Timestamp | A 60% price one month before Election Day is not comparable with 99% after polls close |
| Price and executable spread | Distinguishes the displayed signal from the price available at size |
| Trading volume and depth | Adds context about participation and liquidity |
| Published resolution source | Defines which evidence controls settlement |
| Final market result | Shows how the contract resolved |
| Official public result | Separately verifies the real-world election outcome |

For a binary market, one simple calibration measure is the **Brier score**:

```text theme={null}
Brier score = (forecast probability − actual outcome)²
```

If a contract was priced at 70% and the outcome occurred, the score is `(0.70 − 1)² = 0.09`. Lower scores are better, but one market is not enough to judge a forecasting system. A useful review needs many timestamped forecasts under consistent rules.

## Why Results Can Remain in Progress

Election markets can stay unresolved after Election Day because:

* the designated source has not published a sufficiently final result;
* a race remains too close to call;
* provisional, mail or overseas ballots are still being processed;
* a recount or correction is relevant under the market rules;
* the market's dispute window is still open.

Opinion documents a resolution and dispute process, but the exact procedure for a trade is the one stated on that market's page. A news projection, market price and certified result can arrive at different times.

## Where to Continue

* [Open the live 2026 Midterms hub](https://app.opinion.trade/midterms) for the latest market status.
* Read [How Opinion AI Resolves Prediction Markets](https://blog.opinion.trade/learn/how-opinion-ai-oracle-works.md) for the oracle model.
* Review [Opinion Market Resolution and Disputes](https://blog.opinion.trade/learn/opinion-market-resolution-and-disputes.md) before interpreting **Won** or a pending result.
* Use [Order Books, Spread and Liquidity](https://blog.opinion.trade/learn/order-book-spread-liquidity.md) to evaluate whether a displayed percentage was tradable at your intended size.
* See [Opinion Market Signals](https://blog.opinion.trade/learn/opinion-market-signals.md) for a reusable probability-recording framework.

## FAQ

> [accordion] What did Opinion's 2026 House and Senate control markets resolve to?
>
> As of this page's November 9 review, Opinion marked the Democratic Party as Won in both its 2026 House-control and Senate-control markets. Those are Opinion market determinations, not official election certifications; state election authorities remain the source for certified public results.

> [accordion] Are 2026 midterm odds the same as election results?
>
> No. Odds or contract prices are market estimates. A determined market result applies the contract's resolution rules. An official result comes from the responsible election authority.

> [accordion] Why does a race still show 97% instead of Won?
>
> A high probability can still be a live market price. The designated source, market close, resolution review or dispute process may not yet be complete.

> [accordion] Can I compare prediction-market probabilities with polls?
>
> Yes, but align the timestamp, exact question and outcome definition. Polls estimate voter preferences from samples; prediction-market prices reflect trades, liquidity and participant incentives. They are different signals.

> [accordion] Does high volume prove an election market is accurate?
>
> No. Volume measures trading activity. Accuracy also depends on timing, calibration, market rules, liquidity and the quality of information incorporated into prices.

## Sources

1. [OPINION — US Midterms 2026](https://app.opinion.trade/midterms) — current market statuses, update timestamp and market links
2. [Federal Election Commission — Election and Voting Information](https://www.fec.gov/introduction-campaign-finance/election-results-and-voting-information/) — official election-resource directory
3. [OPINION Docs — Resolution](https://docs.opinion.trade/trade-on-opinion.trade/resolution) — current resolution overview
4. [OPINION Docs — Dispute](https://docs.opinion.trade/trade-on-opinion.trade/dispute) — current dispute process

*This page explains how to interpret market data. It is not an official election result, legal advice, investment advice or gambling advice. Market status, access and eligibility can change.*


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