diff --git a/stock/analysis/Common.py b/stock/analysis/Common.py
index 737fa31..3824567 100644
--- a/stock/analysis/Common.py
+++ b/stock/analysis/Common.py
@@ -730,6 +730,7 @@ class Common:
 
         check_buy = False
 
+        # 체크 1
         min_open_close_1 = min(stock_daily['open'].iloc[-2], stock_daily['close'].iloc[-2])
         min_open_close = min(stock_daily['open'].iloc[-1], stock_daily['close'].iloc[-1])
 
@@ -737,4 +738,18 @@ class Common:
                 stock_daily['leadingSpan1'].iloc[-1] < stock_daily['leadingSpan2'].iloc[-1] < min_open_close):
             check_buy = True
 
+        # 체크 2
+        for c in range(1, 3):
+            min_open_close_1 = stock_daily['close'].iloc[-(c+1)]
+            min_open_close = stock_daily['close'].iloc[-c]
+
+            if (
+                    # 선행1 (상승) < 종가 혹은 시가 < 선행2 (하락) 였는데, 오늘은 선행1 (상승) < 선행2 (하락) < 종가 혹은 시가
+                    (min_open_close_1 <= max(stock_daily['leadingSpan1'].iloc[-(c+1)], stock_daily['leadingSpan2'].iloc[-(c+1)])) and
+                    (max(stock_daily['leadingSpan1'].iloc[-c], stock_daily['leadingSpan2'].iloc[-c]) < min_open_close)
+            ):
+                check_buy = True
+                break
+
+
         return check_buy