diff --git a/stock/analysis/Common.py b/stock/analysis/Common.py
index 0a03b18..598c1ae 100644
--- a/stock/analysis/Common.py
+++ b/stock/analysis/Common.py
@@ -569,6 +569,13 @@ class Common:
         check = False
         if len(stock['trend']) < 10:
             return check
+        for i in range(10):
+            if stock['rsi'][i] is None:
+                return check
+        for i in range(10):
+            if stock['slow_k'][i] is None:
+                return check
+
 
         if (stock['close'][1] is None or stock['close'][0] is None or stock['rsi'][1] is None or stock['rsi'][0] is None):
             return check