Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Robinhood Prediction Markets) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 400B+ yuan | 100% |
| <250B yuan | 0% |
| 250–280B yuan | 0% |
| 280–310B yuan | 0% |
| 310–340B yuan | 0% |
| 340–370B yuan | 0% |
| 370–400B yuan | 0% |
| No IPO by December 31, 2026 | 0% |
Market context
CXMT’s listing would be a mainland China IPO for ChangXin Memory Technologies, and the market here turns on the company’s closing market value on the first day of trading, not the amount raised or the offer price alone. The prospectus-based pricing cited in coverage implies an initial valuation of about RMB579.2 billion at RMB8.66 a share, or roughly US$85.5 billion, before any greenshoe effects, which sets the scale for the first-day close that prediction markets are trying to handicap.[2] In crowd terms, the signal has been extremely bullish elsewhere: one Polymarket view has put 400 billion yuan or higher at about 99%, while another source cited Polymarket around 90% for above 400 billion yuan, underscoring that traders are already leaning towards a very large debut.[4][1]
For platform comparison, the same event can look different on Polymarket, Kalshi, Betfair or Smarkets because some books show **implied probability** directly, while betting exchanges usually trade through **decimal odds** and a market price that already embeds fees and spread. That matters on a one-day IPO-cap market: a 99% reading on one venue may still be less attractive after exchange commission, and KYC access can also differ materially by jurisdiction, particularly for US-based access versus broader exchange availability. Comparable China-chip listings and recent IPO coverage suggest the main catalysts are straightforward: final regulatory timing, whether the float proceeds as scheduled, and the opening print relative to the offer price, because the closing market cap is mechanically driven by both shares outstanding and that first-day close.[7][9][10]
The key watchpoint is whether CXMT actually lists before 31 December 2026; if it does not, the market resolves to no IPO by that date. If it does list, traders will need to follow the official allotment, final share count, and closing auction mechanics on the Shanghai STAR Market, because those determine the exact market capitalisation used for settlement, while any greenshoe or post-pricing change in shares outstanding can shift the final figure away from headline fundraising numbers.[2][7][10]
Methodology
This page compares CXMT IPO Closing Market Cap specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.
Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.
FAQ
- Which platform has the deepest liquidity?
- Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.
- What about Smarkets as an alternative?
- Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.
- Which platform is accessible globally?
- Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Robinhood Prediction Markets has a different geo footprint and routes to Polymarket's order book at 0% fees.
- Are all these platforms regulated?
- No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.
- Which platform supports Klarna/SOFORT?
- Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.
Trade CXMT IPO Closing Market Cap on Robinhood Prediction Markets
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