ArbTrader
Kalshi & Polymarket arbitrage, found 0.3s after prices move
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ArbTrader checks 40,000+ prediction-market events on Kalshi, Polymarket and Polymarket US and shows only the trades that still profit after every fee: buy every side for under $1, get $1 back whoever wins. Plus a whale tracker with copy trading, an AI analyst that researches any market from a screenshot, and free side-by-side Kalshi vs Polymarket odds. Free to watch; Quant is $1 for 3 days.
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More like this: all 39 launches in prediction market platforms →
PH · launched Oct 29, 2026 · 1 upvote (top 67%)
- Fintech
- Analytics & BI
- Prosumer
- Not AI
- Commercial product
- Productivity
- Fintech
- Investing
Similar launches
See all 500 similar launches →Could you build this?
Partial A dashboard that pulls Kalshi and Polymarket APIs and computes fee-adjusted arbitrage is buildable with AI help. Sub-second detection across 40,000 markets, reliable fee modeling, and whale tracking need serious low-latency infrastructure and data work.
What it would actually take: The stack would be streaming market-data ingestion over websockets, a fast in-memory order book, and a fee and settlement engine that is correct per venue. Whale tracking requires indexing on-chain Polymarket activity. The hard parts are latency at scale and accurate execution logic, which need experienced quant or trading-systems engineers.
Competitors
Other products that read as similar to this one : 500 launches clear the similarity bar, closest 8 shown.
Attention rank: #219 of 501 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 365 days after the earliest competitor.
- prediction-market-arbitrage-trading-bot · github · 2026-09-27 · 25 upvotes · similarity 0.67
- Blink Markets · ph · 2026-09-10 · 1 upvotes · similarity 0.62
- MarketMaster · ph · 2026-09-22 · 1 upvotes · similarity 0.58
- Prediction Market Odds Calculator · ph · 2026-10-23 · 1 upvotes · similarity 0.58
- DeskBot · ph · 2026-10-13 · 1 upvotes · similarity 0.58
- Layer · hn · 2026-10-08 · 5 upvotes · similarity 0.56
- Arbital - Trade memes, stocks, and perps from one place · yc · 2026-08-15 · 69 upvotes · similarity 0.55
- kalshi-trading-bot · github · 2026-09-15 · 40 upvotes · similarity 0.52
Other launches for this product
- No other launches for this product.