Polymarket and Kalshi news: the prediction market stories that matter (October 2026)
A dated roundup of prediction market news: Kalshi’s court fights and margin request, Polymarket’s growth, Robinhood and the sportsbook apps, and the odds traders are watching this month.
In this article
This page collects the prediction market news that actually changes something for traders: rulings that decide where Kalshi can operate, new products, money raised, and the markets where the odds moved most. It is updated as stories develop; every item carries its date.
Last updated 16 October 2026. Odds quoted are a snapshot from that day; follow the links for live prices.
The odds everyone is watching
| Market | Polymarket | Kalshi |
|---|---|---|
| Democrats win the House (Nov 3) | 90.5% | 90% |
| Democrats win the Senate | 64.5% | 63% |
| Fed holds rates on October 28 | 86.5% | — |
| Brewers win the World Series | 65% | 65% |
| Government shutdown on December 12 | — | 34% |
| CLARITY Act signed into law in 2026 | 6% | 5% |
| US recession in 2026 | 6.5% | 4% |
The midterms are 18 days away; our 2026 election hub has every Senate, House and governor race with both platforms side by side. The government shutdown odds, CLARITY Act odds and recession odds each have their own explainer.
Latest reports
Markets this week: Brazil runoff odds · Israel election odds · Fed decision odds · World Series: Brewers vs Rays
Companies: Kalshi's bitcoin-backed loans and Webull perps · Kalshi's US500 perpetual · Polymarket investors press Shayne Coplan
Courts and elections: Illinois ruling for Kalshi and Coinbase · Underdog sues Tennessee · Midterm trading tops $750 million
Kalshi news
The state fights are heading to the Supreme Court. In September 2026 New Jersey asked the US Supreme Court to review the Third Circuit's ruling that federal commodities law stops the state from enforcing its gambling laws against Kalshi's sports contracts. A Ninth Circuit decision in August went the other way, so federal appeals courts now disagree, which makes a Supreme Court case more likely. In Washington a state judge ordered Kalshi in August to stop offering most contract categories there, and New York's attorney general sued Kalshi in July. Where Kalshi stands in each state: is Kalshi legal in your state.
Margin trading request. On 22 September 2026 Kalshi's clearinghouse, Kalshi Klear, asked the CFTC to allow margin trading for eligible members with enough capital, on economic, financial and political contracts but not on sports, culture or "mention" markets. The CFTC has not ruled. Retail accounts would stay fully funded at first.
Valuation and IPO talk. Kalshi's last confirmed round valued it at $22 billion (spring 2026). Reports in August described a new raise at about $40 billion, and the CEO, Tarek Mansour, has said a public listing is being discussed but will not happen in 2026. What that means for anyone searching for Kalshi shares: Kalshi stock and Polymarket stock.
New products. Kalshi has pushed beyond yes/no contracts toward perpetual futures, crypto-style contracts with no expiry, with filings reported in September covering stocks, ETFs, commodities and crypto. How the core product earns money: how does Kalshi make money.
Polymarket news
ICE's stake. Intercontinental Exchange, the owner of the New York Stock Exchange, completed a further $600 million investment in March 2026, taking its holding to roughly a quarter of the company according to reports at the time. Background: who owns Polymarket.
New kinds of markets. Since May 2026 Polymarket has listed markets on private companies, resolved with data from Nasdaq Private Market, and in April it opened a waitlist for leveraged perpetual contracts on Bitcoin, stocks and gold.
Where it is open. The global site keeps a public list of blocked and close-only countries; we keep a readable version in where is Polymarket legal. US residents trade on the separate, CFTC-regulated Polymarket US: how to use Polymarket in the US.
Big markets this month. The Nobel Peace Prize market drew more than $26 million before the 9 October announcement, and the 2027 NFL championship market has already traded about $67 million: see Super Bowl odds on Kalshi and Polymarket.
The rest of the industry
- Robinhood opened its own exchange, Rothera, a joint venture with Susquehanna, in June 2026, and reported $156 million of prediction market revenue for the second quarter. Details: Robinhood prediction markets.
- DraftKings launched its own exchange, DKeX, in June 2026 and folded DraftKings Predictions into its main app: DraftKings Predictions review.
- FanDuel Predicts, built with CME Group, went from five states to nationwide financial markets in February 2026: FanDuel Predicts explained.
In Washington
- CLARITY Act: the crypto market structure bill failed a Senate procedural vote 49–50 on 15 September 2026. A motion to reconsider keeps a second vote possible, but markets give it about a 1-in-20 chance of becoming law this year.
- Government funding: a stopgap passed in September keeps the government open until 11 December 2026, setting up a lame-duck deadline after the midterms.
How to follow prediction market news yourself
- Watch the prices, not just the headlines. A big story usually shows up as a fast move in the odds. Our live markets page and the resolution calendar show what is moving and what closes next.
- Read the rules when news breaks. A headline can sound decisive while the market's resolution source says otherwise.
- Compare both platforms. When news hits, one order book often reacts first; the gap shows up on our spread scanner.
Prediction market news: frequently asked questions
Where can I find Polymarket news today?
Polymarket posts product news on its own channels; this page tracks the stories that affect traders, with dates, and links to live odds.
What is the latest Kalshi news?
As of mid-October 2026: a pending CFTC decision on margin trading, a likely Supreme Court petition on state gambling laws, and talk of a new funding round. Each item above carries its date.
Do prediction markets react to news faster than polls?
Usually. Prices move within minutes of a story, while polls take days to field. Speed is not the same as accuracy, though; see how prediction markets work.
Is Kalshi or Polymarket in legal trouble?
Kalshi is fighting several states over sports contracts but remains a CFTC-regulated exchange. Polymarket's US federal cases closed in 2025 and it now runs a licensed US exchange.
Keep reading
- Kalshi vs Polymarket
- Prediction market apps compared
- How to read Kalshi odds and Polymarket prices
- Live election betting odds for the midterms
- News: the CFTC proposes treating event contracts as swaps
- News: the NFL asks the Supreme Court to step in
- News: Utah sues Kalshi and Susquehanna
- News: Ohio's deadline passes
- News: Kalshi adds accuracy scores to midterm markets
- Polymarket Greenland odds
- The Polymarket grocery store
