The Direxion Daily FTSE China Bull 3X Shares (YINN) ETF, an exchange-traded fund that provides leveraged exposure to Chinese equities, surged by 8.09% in pre-market trading on Wednesday. This significant rally was fueled by growing investor optimism surrounding potential policy measures and stimulus efforts aimed at supporting China's slowing economy and struggling real estate sector.

The pre-market surge in YINN and other Chinese stocks and ETFs comes ahead of a highly anticipated joint briefing scheduled for Thursday. Officials from the Chinese Housing Ministry, People's Bank of China, Finance Ministry, and National Financial Regulatory Administration are expected to provide details and announcements during this briefing.

Market participants are closely watching for any measures or policy initiatives that could help stabilize China's economic growth and bolster the beleaguered real estate industry. Even the slightest hints of positive developments from the briefing could further fuel the recent upswing in Chinese assets, as investors position themselves in anticipation of potential stimulus measures.