Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi vs Polymarket) Pick polygram.ink (preferred broker) |
9% | 91% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
9% | 91% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Market context
GameStop’s bid for eBay is a live, publicly disclosed takeover attempt, but the market’s **13% YES** implies traders think the odds of an official acquisition or merger announcement by 31 December 2026 remain low. That sits comfortably below the broader attention the story has drawn in equities and event-driven coverage, where the move is treated as unusual but not impossible; the key distinction is that this contract only needs an announcement, not a completed closing.[5][3][9]
The closest comparison is a hostile, size-mismatched approach rather than a standard strategic merger: GameStop said it would pay about $55.5 billion, split 50/50 between cash and stock, while eBay rejected the proposal as “neither credible nor appealing”.[5][3] Reuters later reported that GameStop still pledged to pursue the takeover, which keeps the headline risk alive even though analysts have questioned financing and execution from the start.[4][1] In that sense, the current implied probability is closer to a speculative follow-through than to a consensus expectation of success.[1][3]
For traders, the main catalysts are formal board responses, any revised offer terms, financing disclosures, and whether GameStop files fresh transaction documentation or SEC materials showing it is still advancing the process.[6][5] eBay’s stance matters most because a renewed bid would need either a shift in the board’s position or a direct appeal to shareholders; absent that, the market is mostly pricing in the chance of further announcements rather than a durable deal path.[3][9]
Methodology
We track Will GameStop acquire eBay? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
FAQ
- Where can I trade this market with the lowest fees?
- Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi vs Polymarket. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi vs Polymarket trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
Trade Will GameStop acquire eBay? on Kalshi vs Polymarket
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