Despite the "worst PPI since 2022" news, the SPDR S&P 500 ETF (SPY) showed minimal reaction, trading at $644.42 with a slight daily decrease of only 0.07%. This suggests the market is largely shrugging off the negative Producer Price Index data, indicating resilience or a focus on other factors. Investors should monitor if this muted reaction persists or if future economic data triggers a more significant market response.