From 8b624df2483b24f9aa6a3f706d43f28a352b54f8 Mon Sep 17 00:00:00 2001
From: 1122455801 <zhangyangffff@gmail.com>
Date: Fri, 14 Jun 2019 13:15:57 +0800
Subject: [PATCH] Update bitmex_gateway.py

---
 vnpy/gateway/bitmex/bitmex_gateway.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/vnpy/gateway/bitmex/bitmex_gateway.py b/vnpy/gateway/bitmex/bitmex_gateway.py
index 72988f56..4de3a33b 100644
--- a/vnpy/gateway/bitmex/bitmex_gateway.py
+++ b/vnpy/gateway/bitmex/bitmex_gateway.py
@@ -661,6 +661,9 @@ class BitmexWebsocketApi(WebsocketClient):
 
     def on_position(self, d):
         """"""
+        if not d["currentQty"]:
+            return
+
         position = PositionData(
             symbol=d["symbol"],
             exchange=Exchange.BITMEX,