diff --git a/modules/trading/install.py b/modules/trading/install.py
index e1953b6..3487c92 100644
--- a/modules/trading/install.py
+++ b/modules/trading/install.py
@@ -320,6 +320,12 @@ def install_trading(app, *, login_required, require_nav, get_db, get_setting, se
                         codes.get("market_code", ""),
                         codes.get("sina_code", ""),
                     )
+                if not price or float(price) <= 0:
+                    from modules.market.market import get_price as market_get_price
+                    price = market_get_price(
+                        main.get("market_code") or codes.get("market_code", ""),
+                        main.get("sina_code") or codes.get("sina_code", ""),
+                    )
                 return {
                     "ths_code": sym,
                     "price": price,