diff --git a/scripts/data_platform/sina_index_eod.py b/scripts/data_platform/sina_index_eod.py
index c0c2d76..8790e1c 100644
--- a/scripts/data_platform/sina_index_eod.py
+++ b/scripts/data_platform/sina_index_eod.py
@@ -55,9 +55,12 @@ from dbbardata_utils import normalize_daily_dt  # noqa: E402
 DB = r"C:\sanguo_vnpy_v2\data\quant_trading.db"
 T0 = time.time()
 
-# 15 个中证指数 (与 SZSE 股票码碰撞, 仅灌 SSE 点位行)
-# 000938 = 中证 1000 等权 (策略需求: RPS/动量基准对比, 加 2026-07-28)
+# 16 个指数点位 -> dbbardata('d', SSE)。
+# 000928~000938/000852/000905/000016/000985 与 SZSE 股票码碰撞 (仅灌 SSE 点位行隔开股票行);
+# 000300 沪深300 无碰撞, 但缺每日更新机制曾停 7-16 (2026-08-01 加)。
+# 000938 = 中证1000等权 (策略需求: RPS/动量基准对比, 加 2026-07-28)
 CODES = [
+    "000300",
     "000928", "000929", "000930", "000931", "000932", "000933",
     "000934", "000935", "000936", "000937", "000938",
     "000852", "000905", "000016", "000985",