Crypto Arbitrage Alerts: CEX-to-CEX Price Gaps in Real Time
What is crypto arbitrage?
Cryptocurrency prices are not identical across every exchange. Bybit, KuCoin, and OKX each run their own order books, and the same asset — say, SOL/USDT — can trade at slightly different prices on each at any given moment. When that difference is wide enough to cover fees on both sides and still leave a profit, you have an arbitrage opportunity.
In practice these windows are narrow and fleeting. Market makers close them quickly. To capture one you need to know about it within seconds, have accounts pre-funded on both exchanges, and execute both legs almost simultaneously. The bottleneck is not capital — it is information speed.
What Darkmen tracks
Darkmen's Cross-Exchange Arbitrage module watches the same coin on Bybit, KuCoin, and OKX in parallel. When the spread on a major pair rises more than 0.15% above its recent baseline, the system fires an alert to your delivery channel immediately.
Each alert includes:
- The pair, the two venues, and which side to buy or sell
- Current spread percentage and how far it is above the baseline
- Estimated profit after accounting for fees on both sides
- How long the window is likely to persist at current market depth
This is the data that quantitative traders pull from exchange WebSocket feeds and process with custom code. Darkmen delivers the signal without requiring you to build the infrastructure.
How the alert works
Enable the Cross-Exchange Arbitrage module in your dashboard and select your delivery channels. Every qualifying spread triggers an alert to your chosen channel in real time.
When an alert arrives, check your fees first — the spread must exceed your combined fee budget on both legs before you profit. Treat spreads above 1% with skepticism unless you can verify both order books manually; they usually reflect a data lag rather than a live opportunity. On liquid pairs, windows above 0.3% last under 30 seconds, so speed matters.
🔀 SOL/USDT spread 0.31% · Bybit ↔ OKX · up from 0.08% baseline
Tier & channels
Cross-Exchange Arbitrage is a Pro module with real-time delivery and no delay. Alerts land in whichever channels you have enabled: Telegram, Discord, email, or the Darkmen web feed. For the full breakdown of what each tier unlocks, see pricing.
Start catching arbitrage windows — see pricing.
FAQ
What is CEX arbitrage?
CEX arbitrage is the practice of buying a cryptocurrency on one centralized exchange where it trades cheaper and simultaneously selling it on another where it trades higher. The profit comes from the price gap — the spread — between the two venues. Because markets are mostly efficient, these windows are short-lived and require fast execution.
How does Darkmen detect arbitrage opportunities?
Darkmen monitors the same trading pair across Bybit, KuCoin, and OKX simultaneously. When the spread between any two venues exceeds a threshold (currently 0.15% above the historical baseline for that pair), an alert fires immediately.
How long do arbitrage windows typically last?
On liquid pairs, spreads above 0.3% usually close within 30 seconds. Larger spreads (above 1%) are more often a sign of data lag than a real opportunity. Darkmen flags both, and the alert includes an estimated window duration to help you prioritize.
What information does a crypto arbitrage alert include?
Each alert tells you the trading pair, the two exchanges involved, which side to buy and which to sell, the current spread percentage and how far it is above the baseline, an estimated profit after fees, and how long the window is likely to persist.
Which tier do I need for arbitrage alerts?
Cross-Exchange Arbitrage is a Pro-tier module. See the pricing page for the full tier comparison.