One Market. Zero Trade-Offs. Introducing the Unified USD Order Book.

Ever wondered why your USD trade didn’t tap into USDC/USDG liquidity—or why your stablecoin of choice limited your reach?We’ve fixed that.The OKX Unified USD Order Book now brings together USD, USDC, and USDG into one seamless market — unlocking deeper liquidity, tighter spreads, and more efficient execution. Whether you trade with USD, USDC, or USDG — you’re now accessing the same powerful book.

1. What is an Order Book?

Think of it as a real-time marketplace.An order book lists all buy and sell orders for a trading pair — like BTC/USD — and matches them based on price and time.Before, each stablecoin (USD, USDC, USDG) had its own order book.That meant split liquidity and inconsistent pricing.

2. Why We Built the Unified USD Order Book

Because smarter trading should be simpler.Previously, trading with USD, USDC, or USDG meant interacting with isolated liquidity pools — limiting depth, speed, and often leading to worse prices.Now, one order book connects it all.More liquidity. Less friction. Zero switching.

3. How It Works

All orders across USD, USDC, and USDG are now routed into a single, unified market.

• Placing an order in USD? It’ll match with the best price available — whether that’s in USD, USDC, or USDG.

• Trading with USDC or USDG? Same smart routing.

No manual conversions. No asset switching. Just efficient execution.

3. What You Get One Market. All Traders.

• Retail traders get better prices and a smoother experience.

• Pro traders gain speed, depth, and fewer missed opportunities.

• Institutions get unified scale, reduced slippage, and a compliance-ready system.

The New Standard for Stablecoin Trading

Not every exchange can unify liquidity at this level. Now, with USD, USDC, and USDG in one place, you’re free to trade how you want — with what you hold.This is what modern markets should feel like.

Unified. Liquid. Powerful. Welcome to the New Alternative.