The terminal for
prediction markets.
ArbEx matches equivalent contracts across venues, folds them into a single synthetic book, and streams live pricing, depth, and arbitrage edge — contract by contract, in real time.
Core Workflows
Match. Price. Monitor. Execute.
One interface for market matching, execution planning, and always-on monitoring — built like the professional terminals it borrows from.
01 /
Matched markets, synthetic tickers
ArbEx uses an algorithm to match equivalent contracts across venues into unified tickers, including ladder synthetics. Compare pricing and spreads without the manual tracking, or build your own custom cross-venue tickers.
02 /
Audit the rules before you trade
Equivalent markets do not always resolve the same way. ArbEx lets you compare the legs and math behind every ticker, then lines up venue rules, tick sizes, close times, payout dates, and resolution criteria side by side, so you can verify the rules before you put on the trade.
03 /
Arbitrage calculator
Build cross-venue trades from live books, select the buy and sell legs, and see payout, fees, net edge, ROI, and annualized return before you execute. ArbEx defaults to the best available spread, then lets you adjust the structure manually.
04 /
Watchlists & alerts
Pin any ArbEx ticker and get text or email alerts on price moves or spread changes — within a single venue or across exchanges. Alerts evaluate continuously against the live book.
| Ticker | Venue | Y.Bid | Y.Ask | OI | Alrt |
|---|---|---|---|---|---|
| PRES2028·VANCE | KAL | 0.273 | 0.279 | 184.2K | |
| PLY | 0.268 | 0.275 | 912.4K | ||
| PIT | 0.270 | 0.280 | 42.1K | ||
| PRES2028·NEWSOM | KAL | 0.120 | 0.130 | 95.6K | |
| PLY | 0.119 | 0.120 | 488.3K | ||
| DEMNOM28·AOC | KAL | 0.170 | 0.180 | 221.4K | |
| PLY | 0.153 | 0.160 | 1.1M | ||
| CPI-JUN-3.7 | KAL | 0.405 | 0.415 | 67.3K | |
| PLY | 0.409 | 0.420 | 154.8K |
05 /
Price history & spread charts
Track relative value over time with per-venue history overlays. Watch dislocations form, monitor trend persistence, and catch reversion setups as they develop.
Platform
The infrastructure prediction markets were missing.
Unified liquidity views, synthetic contracts, and professional RV trading modules — built for traders who need real pricing, real structure, and real workflows.
Consolidated cross-venue depth
ArbEx merges live bids and asks from every venue into one book. When the consolidated book crosses — a bid on one venue above an ask on another — that is the arbitrage, highlighted the moment it appears.
Start trading the spread.
Free tier includes live cross-venue pricing on select ArbEx markets. No card required.