diff --git a/collections/_margin-trading/dYdX.md b/collections/_margin-trading/dYdX.md
index 85f401dc..b2b2dabb 100644
--- a/collections/_margin-trading/dYdX.md
+++ b/collections/_margin-trading/dYdX.md
@@ -1,7 +1,7 @@
 ---
 git-date: 2019-06-14T15:56:54-07:00
 product-title: dYdX
-product-url: https://dydx.trade/
+product-url: https://dydx.trade?ref=LastOrangeU5D
 image: /images/output_md/dydx.exchange.png
 ecosystem: ethereum
 product-description: dYdX is a trading platform for crypto assets, built with open-source protocols, enabling decentralized margin trading. [dYdX - Decentralized Platform for Advanced Financial Products, interview with  Antonio Juliano](/dydx)