diff --git a/backend/services/trading-service/src/application/services/market-maker.service.ts b/backend/services/trading-service/src/application/services/market-maker.service.ts
index 2a64a905..29336331 100644
--- a/backend/services/trading-service/src/application/services/market-maker.service.ts
+++ b/backend/services/trading-service/src/application/services/market-maker.service.ts
@@ -166,7 +166,7 @@ export class MarketMakerService {
         cashBalance: params.initialCash || '0',
         maxBuyRatio: params.maxBuyRatio || 0.05,
         minIntervalMs: params.minIntervalMs || 1000,
-        maxIntervalMs: params.maxIntervalMs || 4000,
+        maxIntervalMs: params.maxIntervalMs || 1000,
       },
     });