diff --git a/src/domain/market/scope.ts b/src/domain/market/scope.ts
index 7cd2413c..8932992a 100644
--- a/src/domain/market/scope.ts
+++ b/src/domain/market/scope.ts
@@ -2,8 +2,10 @@ export type ExchangeScope = "all" | "perp" | "spot" | "builders-perp";
 
 export const EXCHANGE_SCOPES: ExchangeScope[] = ["all", "perp", "spot", "builders-perp"];
 
+const isTestnet = typeof import.meta !== "undefined" && import.meta.env?.VITE_HYPERLIQUID_TESTNET === "true";
+
 export const DEFAULT_SELECTED_MARKETS: Record<ExchangeScope, string> = {
-	all: "VOLX-USDH",
+	all: isTestnet ? "VOLX-USDH" : "CL-USDC",
 	perp: "BTC",
 	spot: "@107", // ETH/USDC
 	"builders-perp": "xyz:SILVER",
diff --git a/src/routes/index.tsx b/src/routes/index.tsx
index 5fd4334a..c4c304a5 100644
--- a/src/routes/index.tsx
+++ b/src/routes/index.tsx
@@ -1,6 +1,7 @@
 import { createFileRoute } from "@tanstack/react-router";
 import { useEffect } from "react";
 import { TradeTerminalPage } from "@/components/trade/trade-terminal-page";
+import { DEFAULT_SELECTED_MARKETS } from "@/domain/market";
 import { buildPageHead } from "@/lib/seo";
 import { useMarketActions } from "@/stores/use-market-store";
 
@@ -21,7 +22,7 @@ function IndexPage() {
 	const { setSelectedMarket } = useMarketActions();
 
 	useEffect(() => {
-		setSelectedMarket("all", "VOLX-USDH");
+		setSelectedMarket("all", DEFAULT_SELECTED_MARKETS.all);
 	}, [setSelectedMarket]);
 
 	return <TradeTerminalPage />;