diff --git a/bbgo/context.go b/bbgo/context.go
index bebd7403b..d266c7b4f 100644
--- a/bbgo/context.go
+++ b/bbgo/context.go
@@ -19,7 +19,6 @@ type Context struct {
 	CurrentPrice    float64
 
 	Balances                map[string]types.Balance
-	Quota                   map[string]types.Balance
 	ProfitAndLossCalculator *accounting.ProfitAndLossCalculator
 	StockManager            *StockManager
 }
diff --git a/bbgo/kline_regression.go b/bbgo/kline_regression.go
index ecfacfa87..99f6017cf 100644
--- a/bbgo/kline_regression.go
+++ b/bbgo/kline_regression.go
@@ -41,14 +41,6 @@ func (trader *BackTestTrader) SubmitOrder(cxt context.Context, order *types.Subm
 func (trader *BackTestTrader) RunStrategy(ctx context.Context, strategy Strategy) (chan struct{}, error) {
 	logrus.Infof("[regression] number of kline data: %d", len(trader.SourceKLines))
 
-	maxExposure := 0.4
-	trader.Context.Quota = make(map[string]types.Balance)
-	for currency, balance := range trader.Context.Balances {
-		quota := balance
-		quota.Available *= maxExposure
-		trader.Context.Quota[currency] = quota
-	}
-
 	done := make(chan struct{})
 	defer close(done)