📝 Executive Summary
The S&P 500 is grappling with a funding squeeze as the AI rally drives a surge in leveraged equity positions, while the upcoming SpaceX IPO absorbs bank balance sheet capacity. The combination is straining market liquidity, with prime brokers reducing margin lending. This dynamic raises the risk of forced deleveraging and could exacerbate market volatility. Analysts flag the potential for a broader equity pullback if the squeeze persists.