diff --git a/deploy/profile-scripts/mo_models.py b/deploy/profile-scripts/mo_models.py
index 3dee7b1b..17224104 100644
--- a/deploy/profile-scripts/mo_models.py
+++ b/deploy/profile-scripts/mo_models.py
@@ -65,14 +65,26 @@ def normalize_code(code):
 # ── 港币汇率 ──────────────────────────────────────────────────────────
 
 def get_hk_rate():
-    """获取 HKD→CNY 汇率。优先用 hk_rate 模块（支持API+缓存），失败回退 0.87"""
+    """获取 HKD→CNY 汇率。优先用 hk_rate 模块（支持API+缓存），失败回退 fx_rate 表最新锁定值"""
     try:
         from hk_rate import hkd_to_cny
         return hkd_to_cny()
     except Exception:
         pass
-    # 最后的兜底
-    return 0.87
+    # 2026-08-25 兜底改读 fx_rate 表最新锁定值（daily_close 锁定,不再硬编码0.87——
+    # 硬编码与锁定值偏差1.2%会导致港币市值计算漂移）
+    try:
+        import sqlite3 as _sq
+        _c = _sq.connect("/home/hmo/MoFin/data/mofin.db", timeout=5)
+        _r = _c.execute(
+            "SELECT rate FROM fx_rate WHERE currency_pair='HKD_CNY' AND is_active=1 "
+            "ORDER BY id DESC LIMIT 1").fetchone()
+        _c.close()
+        if _r and _r[0]:
+            return float(_r[0])
+    except Exception:
+        pass
+    return 0.87  # fx_rate 表也没有时的最终兜底
 
 
 def to_cny(price, code):