MarketEdgeMarketEdge

Spot Arbitrage Before the Market Corrects

MarketEdge scans Kalshi and Polymarket in real-time, finding guaranteed-profit opportunities and alerting you instantly.

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24/7Monitoring
Real-TimeAlerts
$10.99/moStarting at

How Arbitrage Works

01

AI Finds a Match

Our AI continuously scans thousands of markets across Kalshi and Polymarket, identifying when the same event is priced differently on each platform.

02

Humans Verify

Every match is reviewed by our team before it reaches you. AI finds the candidates — humans confirm the opportunity is real.

03

You Place the Trade

When the price of YES on one market plus NO on the other totals less than $1, you're guaranteed a profit. Buy both sides and lock in the spread.

Kalshi YES: 52¢+Polymarket NO: 44¢=96¢ cost
→ $1.00 payout→ 4¢ guaranteed profit
04

Wait or Exit Early

Hold until the markets resolve for your guaranteed payout — or sell your positions early if the prices move in your favor for a faster exit.

Bought at: 96¢ combinedKalshi YES rose: 52¢ → 54¢Polymarket NO rose: 44¢ → 46¢
→ Sell both for 100¢→ 4¢ profit without waiting for resolution

See It in Action

#trader-arb
M
MarketEdgeBOTToday at 2:14 PM

📊 Arbitrage Opportunity Found!

Kalshi

Bitcoin above $100k by June?

Polymarket

Bitcoin to stay below $100k through June

Investment

$200.00

Strategy

Kalshi: Bet YES @ 62.00¢

Polymarket: Bet YES @ 34.10¢

Combined Cost: 96.10¢ per pair

Optimal Allocation

Kalshi: $129.17 (208 contracts)

Polymarket: $70.83 (208 contracts)

Guaranteed Profit

$8.12 (4.06%)

Today at 4:58 PM

M
MarketEdgeBOTToday at 3:31 PM

📊 Arbitrage Opportunity Found!

Kalshi

Fed rate cut in June 2026?

Polymarket

No Fed rate cut in June 2026?

Investment

$150.00

Strategy

Kalshi: Bet NO @ 28.50¢

Polymarket: Bet NO @ 67.20¢

Combined Cost: 95.70¢ per pair

Optimal Allocation

Kalshi: $42.75 (157 contracts)

Polymarket: $105.50 (157 contracts)

Guaranteed Profit

$6.73 (4.49%)

Today at 4:58 PM

M
MarketEdgeBOTToday at 4:58 PM

📊 Arbitrage Opportunity Found!

Kalshi

GDP growth in 2026?

Polymarket

Negative GDP growth in 2026?

Investment

$100.00

Strategy

Kalshi: Bet YES @ 9.57¢

Polymarket: Bet NO @ 86.35¢

Combined Cost: 95.92¢ per pair

Optimal Allocation

Kalshi: $9.96 (104 contracts)

Polymarket: $89.80 (104 contracts)

Guaranteed Profit

$4.24 (4.26%)

Today at 4:58 PM

Built by Engineers from Stripe & Big Tech

We're a small team of engineers who've built financial infrastructure at Stripe and other leading tech companies. We're bringing that expertise to prediction market trading.

Now

Discord Bot

Real-time arbitrage alerts delivered straight to Discord with exact strategy and profit calculations.

Next

Web Dashboard

A full web interface for managing your arbitrage strategy.

Future

Automated Trading

WebSocket API and automated execution. Set your parameters and let the system trade for you.

Simple, Transparent Pricing

Trader

$10.99/month
  • Access to arbitrage alerts
  • Real-time notifications
  • Priority support
Get Started

Cancel anytime. No lock-in.

Frequently Asked Questions