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December 31 11.4%
Only Polymarket lists this market, so there is no second price to compare.
Consensus blends each venue’s last price, weighted by how much has traded there. Best Yes price is the cheapest ask across venues, and the payout is what a winning $100 stake returns before fees. Open a row for each venue’s contract name, bid and ask, and how closely their rules match.
Prices come from our regular polls of each venue. Ages are as of when this page was built.
The leading outcome on both venues, with the consensus between them. Hover for exact values.
Each venue’s resting orders for the selected outcome’s Yes contract, side by side. Top of book streams live; depth refreshes every 15 seconds.
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Enter a stake to see where it buys the most after fees, using each venue’s live order book.
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Buys at the asks resting now (taker orders), cheapest after fees first, from order-book snapshots up to 15 seconds old. Fees: Kalshi 0.07 × price × (1 − price) per share, rounded up to the cent; Polymarket 0.05 × price × (1 − price) per share (other / general rate). Fee calculator. Estimates only, not advice.
Live prediction market odds for "Will Tesla release Optimus by...?". December 31 leads at 11.4%. $136K has traded across 1 outcome on Polymarket. The market is expected to resolve by Jan 1, 2027.
This market will resolve to “Yes” if Tesla releases a humanoid, bipedal robot (such as Optimus) by June 30, 2026, 11:59 PM ET. Otherwise, this market will resolve to “No”. A qualifying product is a humanoid, bipedal robot intended for consumer use and newly introduced. Non-humanoid robotics, accessories, internal factory deployments, employee-only programs, and partner/enterprise pilots do not qualify. To be considered “released,” the product must be available for purchase by the general public within the timeframe via an official Tesla consumer channel (e.g., tesla.com) with a live checkout or paid preorder/deposit. Announcements, unveilings, demos, or waitlists with “register interest” pages without payment do not suffice. Availability in any region counts if it is open to the general public. The primary resolution source will be official statements and materials from Tesla.
It is the price of a Yes contract that pays $1 if the outcome happens. A 14¢ price means traders put the chance near 14%. Where two venues list the same outcome, we blend their last prices, weighting the venue with more trading volume more heavily (neither counts for less than a quarter). When only one outcome can win, each venue’s prices add up to a little over 100% (its margin); the fair chance removes that margin so the outcomes add up to exactly 100%.
A Yes contract pays $1 if it wins, so at the best ask a $100 stake buys 100 ÷ ask contracts. At 18¢ that is about 555 contracts, paying $556 (5.56x) if Yes happens. Venue fees and price slippage on larger orders are not included.
Each venue has its own traders, fees and order book. Contracts can also settle on slightly different terms, which is why each row lists how closely the rules match.
Only when you can buy Yes on one venue below what someone pays for Yes on the other, after fees, and both contracts settle the same way. We show the executable bid and ask so you can check.
Venue prices refresh every few minutes, and the order book and live quotes stream continuously. Each venue’s card shows when we last observed it.