diff --git a/config.json b/config.json
index c7f7425..6776a96 100644
--- a/config.json
+++ b/config.json
@@ -3,7 +3,7 @@
   "trade_enabled": true,
   "arb_threshold": 0.03,
   "scan_interval_ms": 200,
-  "trade_threshold": 0.1,
+  "trade_threshold": 0.25,
   "trade_amount_usd": 5,
   "trade_cooldown_ms": 30000,
   "alert_cooldown_sec": 300,
diff --git a/dashboard.go b/dashboard.go
index dcf769b..df7eb44 100644
--- a/dashboard.go
+++ b/dashboard.go
@@ -379,7 +379,7 @@ func (d *Dashboard) broadcastLoop() {
 					shortAvg := weightedAvgPrice(pos.ShortEntryPrices, pos.AmountUSD/float64(max(1, len(pos.ShortEntryPrices))))
 					longPnl := (longCurrent - longAvg) / longAvg * 100
 					shortPnl := (shortAvg - shortCurrent) / shortAvg * 100
-					totalFees := 2 * (makerFees[ExBitget] + makerFees[ExHyperLiquid])
+					totalFees := 2 * (takerFees[ExBitget] + takerFees[ExHyperLiquid])
 					netPnl := longPnl + shortPnl - totalFees
 
 					currentSpread := (hlP - bgP) / bgP * 100
diff --git a/scanner.go b/scanner.go
index b8e3453..0f69db7 100644
--- a/scanner.go
+++ b/scanner.go
@@ -10,10 +10,10 @@ const (
 	ExBitget      = "Bitget"
 )
 
-// Maker fee rates (%) — for limit orders on trading exchanges
-var makerFees = map[string]float64{
-	ExHyperLiquid: 0.015,
-	ExBitget:      0.020, // standard maker
+// Taker fee rates (%) — for IOC market orders on trading exchanges
+var takerFees = map[string]float64{
+	ExHyperLiquid: 0.045,
+	ExBitget:      0.060,
 }
 
 // TickerCoins defines all coins we monitor.
@@ -59,9 +59,9 @@ func ScanBGHL(store *PriceStore) []*ArbOpportunity {
 		}
 
 		// BG->HL: buy cheap at Bitget, sell expensive at HyperLiquid
-		profitBG := netProfit(bgP, hlP, makerFees[ExBitget], makerFees[ExHyperLiquid])
+		profitBG := netProfit(bgP, hlP, takerFees[ExBitget], takerFees[ExHyperLiquid])
 		// HL->BG: buy cheap at HyperLiquid, sell expensive at Bitget
-		profitHL := netProfit(hlP, bgP, makerFees[ExHyperLiquid], makerFees[ExBitget])
+		profitHL := netProfit(hlP, bgP, takerFees[ExHyperLiquid], takerFees[ExBitget])
 
 		grossBG := (hlP - bgP) / bgP * 100
 		grossHL := (bgP - hlP) / hlP * 100
diff --git a/trader.go b/trader.go
index fa8dc9c..6074fe7 100644
--- a/trader.go
+++ b/trader.go
@@ -524,7 +524,7 @@ func (t *Trader) checkExit(pos *ArbPosition, bgP, hlP, diffPct float64, notifier
 
 	longPnl := (longCurrent - longAvg) / longAvg * 100
 	shortPnl := (shortAvg - shortCurrent) / shortAvg * 100
-	totalFees := 2 * (makerFees[ExBitget] + makerFees[ExHyperLiquid]) // 开仓 + 平仓手续费
+	totalFees := 2 * (takerFees[ExBitget] + takerFees[ExHyperLiquid]) // 开仓 + 平仓手续费
 	netPnl := longPnl + shortPnl - totalFees
 
 	// Convergence analysis
diff --git a/types.go b/types.go
index ea3c6cd..1f90ba5 100644
--- a/types.go
+++ b/types.go
@@ -163,8 +163,8 @@ func (swt *SpreadWindowTracker) Tick(snap map[string]map[string]float64, thresho
 			sellFee   float64
 		}
 		for _, dir := range []dirCheck{
-			{"BG->HL", bgP, hlP, makerFees[ExBitget], makerFees[ExHyperLiquid]},
-			{"HL->BG", hlP, bgP, makerFees[ExHyperLiquid], makerFees[ExBitget]},
+			{"BG->HL", bgP, hlP, takerFees[ExBitget], takerFees[ExHyperLiquid]},
+			{"HL->BG", hlP, bgP, takerFees[ExHyperLiquid], takerFees[ExBitget]},
 		} {
 			key := coin.Name + ":" + dir.name
 			netSpr := netProfit(dir.buyPrice, dir.sellPrice, dir.buyFee, dir.sellFee)