Combined depth · both venues
Loading both order books…
Marine Le Pen 70.5%
Next is Jean-Luc Mélenchon at 36.3%. The venues differ most on ric Zemmour (Polymarket 4.5%, Kalshi 1%), a 3.5-point gap.
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, the oldest 1 min ago. Ages are as of when this page was built.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 17¢ and selling on Polymarket at 88¢ nets 7100 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 35¢ and selling on Polymarket at 38¢ nets 300 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 27¢ and selling on Polymarket at 36¢ nets 900 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
No arbitrage: the best bid elsewhere is 14.1¢, at or below the cheapest ask of 17¢.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 8¢ and selling on Polymarket at 11.1¢ nets 310 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 5.8¢ and selling on Kalshi at 10¢ nets 420 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 5¢ and selling on Polymarket at 5.8¢ nets 80 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
No arbitrage: the best bid elsewhere is 4.2¢, at or below the cheapest ask of 6¢.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 4¢ and selling on Polymarket at 5¢ nets 100 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 2¢ and selling on Polymarket at 5¢ nets 300 bps before fees.


Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
No arbitrage: the best bid elsewhere is 4.2¢, at or below the cheapest ask of 5¢.





Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
No arbitrage: the best bid elsewhere is 3.2¢, at or below the cheapest ask of 5¢.


Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
No arbitrage: the best bid elsewhere is 3.2¢, at or below the cheapest ask of 5¢.


Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 2¢ and selling on Polymarket at 3.5¢ nets 150 bps before fees.



Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 2¢ and selling on Polymarket at 4.2¢ nets 220 bps before fees.







Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
No arbitrage: the best bid elsewhere is 1¢, at or below the cheapest ask of 1.8¢.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
No arbitrage: the best bid elsewhere is 1.2¢, at or below the cheapest ask of 2¢.


Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
No arbitrage: the best bid elsewhere is 1¢, at or below the cheapest ask of 2¢.


Possible arbitrage before fees: buy Marine Le Pen on Kalshi at 17¢, sell on Polymarket at 88¢ (7100 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.
Loading both order books…
Waiting for the first live quote…
Waiting for the first live quote…
Enter a stake to see where it buys the most after fees, using each venue’s live order book.
Loading both order books…
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 0.04 × price × (1 − price) per share (politics rate). Fee calculator. Estimates only, not advice.
Live prediction market odds for "Next French Presidential Election: who will advance to the 2nd round?". Marine Le Pen leads at 70.5%. Next is Jean-Luc Mélenchon at 36.3%. $433K has traded across 36 outcomes on Polymarket and Kalshi. The market is expected to resolve by Apr 19, 2027.
The next French presidential election is currently expected to be held around April 2027. This market pertains to the outcome of the next French presidential election, regardless of whether it follows the scheduled end of the current term or is held earlier. The President of France is elected via a two-round system; a candidate must secure over 50% of the vote to win outright in the first round. If no candidate achieves this, the top two contenders advance to a runoff second round. This market will resolve to "Yes" if the listed candidate advances to the second round of the next French presidential election or wins the election outright in the first round. Otherwise, this market will resolve to "No". If no such election occurs or the results of the first round of this election are not known by December 31, 2027, 11:59 PM ET, this market will resolve to "No". This market will resolve based on the result of the election as indicated by a consensus of credible reporting. If there is ambiguity, this market will resolve based solely on the official results as reported by the French Government, specifically the Ministry of the Interior (https://www.interieur.gouv.fr/).
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.