diff --git a/stock/analysis/Common.py b/stock/analysis/Common.py
index 2fa4692..ed56b16 100644
--- a/stock/analysis/Common.py
+++ b/stock/analysis/Common.py
@@ -584,9 +584,9 @@ class Common:
         # 매수전략 #2: RSI 과매도 이후 골든크로스
         if (stock['macd'][1] < stock['macds'][1] and stock['macds'][0] < stock['macd'][0]):
             canBuy = False
-            if 12 < len(stock['rsi']):
-                for c in range(1, 11):
-                    if stock['rsi'][0 - c] < 10:
+            if 13 < len(stock['rsi']):
+                for c in range(1, 12):
+                    if stock['rsi'][c] < 10:
                         canBuy = True
                         break
                 if canBuy:
@@ -598,7 +598,7 @@ class Common:
             index = 0
             if 41 < len(stock['rsi']):
                 for c in range(1, 41):
-                    if stock['macd'][0 - c - 1] < stock['macds'][0 - c - 1] and stock['macds'][0 - c] < stock['macd'][0 - c]:
+                    if stock['macd'][c+1] < stock['macds'][c+1] and stock['macds'][c] < stock['macd'][c]:
                         canBuy = True
                         index = c
                         break