Combined depth · both venues
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Babydoll 71.5%
Next is End of Beginning at 10.1%. The venues differ most on Beauty and a Beat (Polymarket 0.2%, Kalshi 4%), a 3.8-point gap.
Fair chance strips out each venue’s built-in margin (its prices add up to more than 100%), then blends the venues by how much has traded there, so the outcomes add up to 100%. 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, the oldest 1 min ago. Ages are as of when this page was built.
Payoffs match in ordinary outcomes; see the rule differences below the table.
No arbitrage: the best bid elsewhere is 84¢, at or below the cheapest ask of 86¢.
Payoffs match in ordinary outcomes; see the rule differences below the table.
Buying on Kalshi at 11¢ and selling on Polymarket at 12¢ nets 100 bps before fees.
Payoffs match in ordinary outcomes; see the rule differences below the table.
Buying on Polymarket at 0.3¢ and selling on Kalshi at 1¢ nets 70 bps before fees.
Payoffs match in ordinary outcomes; see the rule differences below the table.
Buying on Polymarket at 0.5¢ and selling on Kalshi at 1¢ nets 50 bps before fees.
Payoffs match in ordinary outcomes; see the rule differences below the table.
Buying on Polymarket at 0.5¢ and selling on Kalshi at 1¢ nets 50 bps before fees.
Payoffs match in ordinary outcomes; see the rule differences below the table.
Payoffs match in ordinary outcomes; see the rule differences below the table.
Payoffs match in ordinary outcomes; see the rule differences below the table.
Payoffs match in ordinary outcomes; see the rule differences below the table.
Payoffs match in ordinary outcomes; see the rule differences below the table.
Payoffs match in ordinary outcomes; see the rule differences below the table.
Possible arbitrage before fees: buy End of Beginning on Kalshi at 11¢, sell on Polymarket at 12¢ (100 bps). Check the rules below before trading. See all live spreads
Summarized from each venue’s published rules; the venue’s own rules page is the final word.
The top 3 outcomes on both venues, with the consensus between them. Hover for exact values.
What it costs to buy Yes, what you would get selling it, and the last trade on each exchange, updating as orders change. Hover a status for timing details.
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 (culture rate). Fee calculator. Estimates only, not advice.
Live prediction market odds for "#2 Spotify Song 2026". Babydoll leads at 71.5%. Next is End of Beginning at 10.1%. $168K has traded across 28 outcomes on Polymarket and Kalshi. The market is expected to resolve by Feb 1, 2027.
Spotify releases an annual report of its most streamed song (see: https://newsroom.spotify.com/2025-12-03/wrapped-top-artists-songs-albums-podcasts-audiobooks/). This market refers to the most streamed Spotify song globally for 2026. This market will resolve according to the name of the song listed by Spotify as the #2 song of 2026. The named songs will be primarily ranked by chart ranking. If two or more songs are tied on chart ranking, ties will be broken by alphabetical order of the songs' listed titles. This market will resolve to the song that occupies the second-highest finishing position after applying this ranking. If Spotify does not release who their #2 song for 2026 is by January 31, 2027, 11:59 PM ET, this market will resolve to "Other". The resolution source for this market will be official information from Spotify, typically released as part of Spotify Wrapped. Note: This market and these products have not been endorsed by Spotify. Any references to Spotify, Spotify charts, streaming data, or any associated marks are descriptive only and do not indicate an endorsement of this product or any affiliation between Spotify and Polymarket. Spotify and related marks are the property of Spotify AB and its group companies.
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.