From daaadd8dcae8c2e27f033f6e77e54cfc3abb5485 Mon Sep 17 00:00:00 2001
From: "vn.py" <xiaoyou.chen@foxmail.com>
Date: Thu, 7 Nov 2019 14:33:08 +0800
Subject: [PATCH] [Fix] close #2180

---
 vnpy/app/spread_trading/base.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vnpy/app/spread_trading/base.py b/vnpy/app/spread_trading/base.py
index d5d72e34..efbe185f 100644
--- a/vnpy/app/spread_trading/base.py
+++ b/vnpy/app/spread_trading/base.py
@@ -116,7 +116,7 @@ class LegData:
                 else:
                     self.long_pos -= trade.volume
 
-            self.net_pos = self.long_pos - self.net_pos
+            self.net_pos = self.long_pos - self.short_pos
 
 
 class SpreadData: