On September 15, the cryptocurrency market continued to decline, with the Layer1 sector down 1.50%. SOL and ADA dropped by 2.24% and 3.89%, respectively. Macro pressures, leveraged positions, and tech sector volatility were the main drivers behind this sudden pullback in the crypto market. On one hand, Bitcoin futures' open interest surged to new highs, with leverage ratios climbing steadily. Whales triggered a 'leverage flush,' forcing exchanges to liquidate positions, resulting in an estimated $2 billion in losses. On the other hand, investors are preparing for the upcoming Federal Reserve decision. Fed Chair Jerome Powell's hawkish tone, combined with inflation hovering around 3%, has spooked the market. Both the stock and crypto markets saw widespread risk-off sentiment ahead of the Fed's announcement. Additionally, Chinese regulators accused Nvidia of violating antitrust laws, causing Nvidia's stock to plummet in pre-market trading. As Nasdaq futures tumbled, the risk-off sentiment spilled over into the cryptocurrency market.