diff --git a/stock/analysis/AnalyzerSqlite.py b/stock/analysis/AnalyzerSqlite.py
index b3fe707..2dfbd3b 100644
--- a/stock/analysis/AnalyzerSqlite.py
+++ b/stock/analysis/AnalyzerSqlite.py
@@ -379,7 +379,7 @@ class AnalyzerSqlite:
         sql += ' mfi, '
         sql += ' last_min, last_max, last_middle, '
         sql += ' trend, trend_k, trend_s '
-        sql += ' FROM ' + TableName + ' where CODE=? order by ymd limit 512 '
+        sql += ' FROM ' + TableName + ' where CODE=? order by ymd limit 1024 '
         cursor.execute(sql, (CODE,))
         prices = cursor.fetchall()