diff --git a/HTS_etf_short.py b/HTS_etf_short.py
index 06fb685..10e6d32 100644
--- a/HTS_etf_short.py
+++ b/HTS_etf_short.py
@@ -169,35 +169,35 @@ class HTS_etf (HTS):
         if short:
 
             if slow_k < 10: type_stock['day'] = 10
-            if 10 < slow_k < 20: type_stock['day'] = 7.5
-            if 20 < slow_k < 30: type_stock['day'] = 5
-            if 30 < slow_k < 40: type_stock['day'] = 2.5
+            if 10 < slow_k < 15: type_stock['day'] = 7.5
+            if 15 < slow_k < 20: type_stock['day'] = 5
+            if 20 < slow_k < 25: type_stock['day'] = 2.5
 
             if slow_k_week < 10: type_stock['week'] = 100
-            if 10 < slow_k_week < 20: type_stock['week'] = 75
-            if 20 < slow_k_week < 30: type_stock['week'] = 50
-            if 30 < slow_k_week < 40: type_stock['week'] = 25
+            if 10 < slow_k_week < 15: type_stock['week'] = 75
+            if 15 < slow_k_week < 20: type_stock['week'] = 50
+            if 20 < slow_k_week < 25: type_stock['week'] = 25
 
             if slow_k_month < 10: type_stock['month'] = 1000
-            if 10 < slow_k_month < 20: type_stock['month'] = 750
-            if 20 < slow_k_month < 30: type_stock['month'] = 500
-            if 30 < slow_k_month < 40: type_stock['month'] = 250
+            if 10 < slow_k_month < 15: type_stock['month'] = 750
+            if 15 < slow_k_month < 20: type_stock['month'] = 500
+            if 20 < slow_k_month < 25: type_stock['month'] = 250
         else:
 
             if slow_k > 90: type_stock['day'] = 10
-            if 80 < slow_k < 90: type_stock['day'] = 7.5
-            if 70 < slow_k < 80: type_stock['day'] = 5
-            if 60 < slow_k < 70: type_stock['day'] = 2.5
+            if 85 < slow_k < 90: type_stock['day'] = 7.5
+            if 80 < slow_k < 85: type_stock['day'] = 5
+            if 75 < slow_k < 80: type_stock['day'] = 2.5
 
             if slow_k_week > 90: type_stock['week'] = 100
-            if 80 < slow_k_week < 90: type_stock['week'] = 75
-            if 70 < slow_k_week < 80: type_stock['week'] = 50
-            if 60 < slow_k_week < 70: type_stock['week'] = 25
+            if 85 < slow_k_week < 90: type_stock['week'] = 75
+            if 80 < slow_k_week < 85: type_stock['week'] = 50
+            if 75 < slow_k_week < 80: type_stock['week'] = 25
 
             if slow_k_month > 90: type_stock['month'] = 1000
-            if 80 < slow_k_month < 90: type_stock['month'] = 750
-            if 70 < slow_k_month < 80: type_stock['month'] = 500
-            if 60 < slow_k_month < 70: type_stock['month'] = 250
+            if 85 < slow_k_month < 90: type_stock['month'] = 750
+            if 80 < slow_k_month < 85: type_stock['month'] = 500
+            if 75 < slow_k_month < 80: type_stock['month'] = 250
 
         return type_stock