Live cross-venue aggregator

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Cross-venue prediction-market intelligence. Polymarket and Kalshi side-by-side, categorized, refreshed every minute. LLM-matched pairs surface the same market across both venues so spreads are one glance away.

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Prediction Markets RWA Stocks Portfolio
Building the latest cross-venue snapshot… this page will refresh automatically in a few seconds.
Live · 5-second polling

Live Crypto Markets — 15-min up/down

7 assets, both venues, side-by-side. Probabilities update every 5 seconds from each venue's order book. Spread column highlights the gap between Polymarket and Kalshi.

Current round closes in
—
Updated 19:38:29Z · polling…
Asset Polymarket Kalshi Spread Open
BTC · 15m
✓ on both venues
13.5%
Down 86.5%
14.5%
Down 85.5%
1.0 pp
P↗ K↗
ETH · 15m
✓ on both venues
2.5%
Down 97.5%
3.2%
Down 96.8%
0.7 pp
P↗ K↗
SOL · 15m
✓ on both venues
13.0%
Down 87.0%
14.5%
Down 85.5%
1.5 pp
P↗ K↗
XRP · 15m
✓ on both venues
14.5%
Down 85.5%
13.5%
Down 86.5%
1.0 pp
P↗ K↗
DOGE · 15m
✓ on both venues
6.5%
Down 93.5%
7.5%
Down 92.5%
1.0 pp
P↗ K↗
BNB · 15m
✓ on both venues
26.5%
Down 73.5%
25.5%
Down 74.5%
1.0 pp
P↗ K↗
HYPE · 15m
✓ on both venues
22.5%
Down 77.5%
17.5%
Down 82.5%
5.0 pp
P↗ K↗
Polymarket: {asset}-updown-15m events · Kalshi: KX{ASSET}15M series. Mid-price from each venue's order book (bid/ask spread). Updates every 5 seconds.
Aggregator

Prediction Market Aggregator

Side-by-side coverage of Polymarket and Kalshi. Filter by category; click any row to open the underlying market.

Arbs scan live · pools every 5 min
pools refresh in –:––
All 1371 Politics 112 Elections 518 Crypto 42 Sports 220 Finance 79 Economy 91 Technology 53 Culture 118 Weather 39 Geopolitics 44 Esports 34 Commodities 11 Mentions 8 Other 2
Cross-venue matched markets & arbitrage
⚡ 6 arb · 6 matched Polymarket ↔ Kalshi
Every open market on both venues is matched and scanned every minute — the moment prices cross into an arb it posts here (buy the highlighted side on each venue; one leg always pays $1), arbs first, then matched markets with no current edge. Mid-price implied odds, before fees.
⚡ up to 4.5¢ / share Sports resolves 2027-05-30
Polymarket LALIGA: 2027 Champion ↗ Kalshi La Liga Champion ↗
OutcomePoly YESKalshi YESArbitrage
Real Madrid 37.5¢ 42.0¢ Buy YES@Poly 37.5¢ + Buy NO@Kalshi 58.0¢ → lock 4.5¢
Barcelona 59.5¢ 58.5¢ — no edge
⚡ up to 3.7¢ / share 3 arb outcomes Elections resolves 2028-11-07
Polymarket Republican Presidential Nominee 2028 ↗ Kalshi 2028 Republican presidential nominee ↗
OutcomePoly YESKalshi YESArbitrage
J.D. Vance 47.2¢ 43.5¢ Buy NO@Poly 52.8¢ + Buy YES@Kalshi 43.5¢ → lock 3.7¢
Marco Rubio 19.4¢ 22.5¢ Buy YES@Poly 19.4¢ + Buy NO@Kalshi 77.5¢ → lock 3.1¢
Ron DeSantis 2.1¢ 4.9¢ Buy YES@Poly 2.1¢ + Buy NO@Kalshi 95.1¢ → lock 2.8¢
Tucker Carlson 2.6¢ 3.6¢ — no edge
Ted Cruz 0.9¢ 1.2¢ — no edge
Thomas Massie 0.7¢ 1.2¢ — no edge
Ivanka Trump 0.8¢ 1.1¢ — no edge
Glenn Youngkin 0.9¢ 1.0¢ — no edge
⚡ up to 3.4¢ / share 2 arb outcomes Elections resolves 2028-11-07
Polymarket Democratic Presidential Nominee 2028 ↗ Kalshi 2028 Democratic presidential nominee ↗
OutcomePoly YESKalshi YESArbitrage
Alexandria Ocasio-Cortez 20.9¢ 17.5¢ Buy NO@Poly 79.1¢ + Buy YES@Kalshi 17.5¢ → lock 3.4¢
Jon Ossoff 14.8¢ 17.5¢ Buy YES@Poly 14.8¢ + Buy NO@Kalshi 82.5¢ → lock 2.7¢
Gavin Newsom 14.3¢ 12.5¢ — no edge
Kamala Harris 7.4¢ 8.9¢ — no edge
Pete Buttigieg 5.2¢ 5.2¢ — no edge
Rahm Emanuel 2.4¢ 3.6¢ — no edge
Wes Moore 1.6¢ 2.6¢ — no edge
James Talarico 2.4¢ 1.7¢ — no edge
Ro Khanna 2.2¢ 1.8¢ — no edge
Gretchen Whitmer 0.8¢ 0.9¢ — no edge
⚡ up to 2.9¢ / share 4 arb outcomes Elections resolves 2026-12-31
Polymarket Prime Minister of Israel after the next election? ↗ Kalshi Prime Minister of Israel after the 2026 election? ↗
OutcomePoly YESKalshi YESArbitrage
Gadi Eizenkot 54.6¢ 57.5¢ Buy YES@Poly 54.6¢ + Buy NO@Kalshi 42.5¢ → lock 2.9¢
Avigdor Lieberman 5.1¢ 7.5¢ Buy YES@Poly 5.1¢ + Buy NO@Kalshi 92.5¢ → lock 2.4¢
Benjamin Netanyahu 26.5¢ 24.5¢ Buy NO@Poly 73.5¢ + Buy YES@Kalshi 24.5¢ → lock 2.0¢
Naftali Bennett 7.5¢ 5.5¢ Buy NO@Poly 92.5¢ + Buy YES@Kalshi 5.5¢ → lock 2.0¢
Itamar Ben Gvir 0.9¢ 1.0¢ — no edge
Yair Golan 0.7¢ 1.0¢ — no edge
⚡ up to 2.8¢ / share 2 arb outcomes Elections resolves 2027-04-30
Polymarket Next French Presidential Election ↗ Kalshi Next French presidential election winner? ↗
OutcomePoly YESKalshi YESArbitrage
Marine Le Pen 33.7¢ 36.5¢ Buy YES@Poly 33.7¢ + Buy NO@Kalshi 63.5¢ → lock 2.8¢
Jordan Bardella 2.7¢ 5.1¢ Buy YES@Poly 2.7¢ + Buy NO@Kalshi 94.9¢ → lock 2.4¢
Édouard Philippe 25.0¢ 23.5¢ — no edge
Jean-Luc Mélenchon 14.5¢ 13.0¢ — no edge
François Hollande 3.4¢ 5.0¢ — no edge
Gabriel Attal 3.9¢ 2.2¢ — no edge
Sarah Knafo 1.2¢ 2.4¢ — no edge
Bruno Retailleau 2.1¢ 1.9¢ — no edge
Éric Zemmour 0.8¢ 1.0¢ — no edge
⚡ up to 2.5¢ / share Sports resolves 2027-05-30
Polymarket UEFA Champions League: 2027 Champion ↗ Kalshi Champions League Winner ↗
OutcomePoly YESKalshi YESArbitrage
Barcelona 16.5¢ 19.0¢ Buy YES@Poly 16.5¢ + Buy NO@Kalshi 81.0¢ → lock 2.5¢
Arsenal 15.5¢ 15.0¢ — no edge
Bayern Munich 13.5¢ 13.5¢ — no edge
Real Madrid 12.5¢ 12.5¢ — no edge
Manchester City 8.5¢ 9.0¢ — no edge
Liverpool 6.5¢ 5.5¢ — no edge
Manchester United 2.9¢ 4.5¢ — no edge
Napoli 0.8¢ 2.0¢ — no edge
Aston Villa 1.1¢ 1.5¢ — no edge
Sporting CP 0.7¢ 1.0¢ — no edge
No cross-venue matches in Commodities right now — either both venues are currently covering different markets in this category, or the matcher hasn't run since the last set resolved. The matcher re-runs every 5 minutes; browse the per-venue columns below to see what each venue lists.
Sort by 24h volume Total volume Liquidity Resolves soonest
P
Polymarket
11 of 11 events
Strait of Hormuz traffic returns to normal by September 30?
Commodities $831,868 24h
↗
YES
9.5%
NO
90.5%
Iran-Oman Hormuz Management Agreement by...?
Commodities $135,692 24h · 5 options
↗
September 30
55.5%
August 31
14.5%
August 15
0.0%
August 12
0.0%
August 22
0.0%
Strait of Hormuz traffic returns to normal by...?
Commodities $130,254 24h · 2 options
↗
August 31
0.4%
August 15
0.0%
Kharg Island no longer under Iranian control by...?
Commodities $127,756 24h · 10 options
↗
December 31
7.0%
September 30
1.8%
August 31
0.3%
July 31
0.0%
June 24
0.0%
March 31
0.0%
April 30
0.0%
June 30
0.0%
+ 2 more on Polymarket ↗
Strait of Hormuz traffic returns to normal by September 15?
Commodities $125,513 24h
↗
YES
2.7%
NO
97.3%
Strait of Hormuz traffic returns to normal by October 31?
Commodities $73,336 24h
↗
YES
17.5%
NO
82.5%
US-Iran Hormuz Agreement by...?
Commodities $66,374 24h · 4 options
↗
September 30
16.5%
September 15
7.5%
August 31
4.0%
August 15
0.0%
Strait of Hormuz traffic returns to normal by November 30?
Commodities $64,082 24h
↗
YES
26.0%
NO
74.0%
Hengam Island no longer under Iranian control by...?
Commodities $30,547 24h · 3 options
↗
September 30
50.0%
August 31
0.4%
July 31
0.0%
Iran charges Hormuz fees by...?
Commodities $25,942 24h · 6 options
↗
December 31
40.5%
October 31
28.0%
September 30
15.0%
August 31
4.7%
July 15
0.0%
July 31
0.0%
Which month will Strait of Hormuz traffic return to normal?
Commodities $16,963 24h · 7 options
↗
No Return to Normal Traffic in 2026
66.0%
December
11.0%
September
8.5%
November
8.0%
October
7.0%
August
0.4%
July
0.0%
K
Kalshi
0 of 0 events
No Kalshi markets in this category right now.
Sources: Polymarket Gamma API (free) · Kalshi REST API (RSA-PSS signed). Market pools, cross-venue matched pairs and the arbitrage scan all refresh every 5 minutes; the live 15-min crypto panel updates every 5 seconds; resolved markets drop on the next page load. Page loads serve only from cache — no API calls per visitor. LLM-verified cross-venue matching (gpt-4o-mini) included.
How it works

Built for speed, scaled for everyone

Polled venues are cached in Redis. LLM market-matching runs async on its own worker. The same data drives a paid REST + WebSocket API.

⚡

Polled + cached

Polymarket and Kalshi polled once per minute, cached in Redis. Visitors hit cache; venues never see our traffic spikes. WebSocket push for sub-second updates is on the roadmap.
🧠

LLM-matched markets

"BTC above $70k on Jun 30" on Polymarket = "BTC ≥ 70000 on 2026-06-30" on Kalshi. Matching runs async on a worker and is cached — never blocks a quote.
🛰️

REST + Data API

The same data that drives the dashboard is exposed via paid REST + WebSocket API for traders building their own signals. Tiers scale by request rate.