diff --git a/stock/analysis/AnalyzerSqlite.py b/stock/analysis/AnalyzerSqlite.py
index e2aafc0..9f1ce34 100644
--- a/stock/analysis/AnalyzerSqlite.py
+++ b/stock/analysis/AnalyzerSqlite.py
@@ -279,8 +279,9 @@ class AnalyzerSqlite:
         self.makeDir("daily_rsi_10이하")
         self.makeDir("daily_이전에_없던_거래량")
         self.makeDir("daily_이격도")
-
         self.makeDir("daily_weekly_monthly_rsi_10_20_30이하")
+        self.makeDir("daily_낙폭과대")
+
 
         return
 
@@ -563,7 +564,6 @@ class AnalyzerSqlite:
                             self.writeFile(type, CODE, NAME, top, stock_daily, status)
 
                     # 2년 중 최대 거래량인 경우
-                    size = len(stock_daily['volume'])
                     c_index = 520
                     if len(stock_daily['volume']) < c_index:
                         c_index = len(stock_daily['volume'])
@@ -591,6 +591,18 @@ class AnalyzerSqlite:
                                 final_status_count += 1
                                 self.writeFile(type, CODE, NAME, top, stock_daily, status)
 
+                    # daily_낙폭과대 (50% 이상 하락)
+                    c_index = 520
+                    if len(stock_daily['close']) < c_index:
+                        c_index = len(stock_daily['close'])
+                    location = stock_daily['close'][0] / max(stock_daily['close'][1:c_index])
+                    if location < 0.5:
+                        type = "daily_낙폭과대"
+                        final_status += " " + type
+                        final_status_count += 1
+                        status = "{:.2f}".format(location) + "_" + status
+                        self.writeFile(type, CODE, NAME, top, stock_daily, status)
+
             if final_status_count >= 5:
                 type = "final"
                 self.writeFile(type, CODE, NAME, top, stock_daily, final_status, final_status_count)