S&P 500 Flat Post-PCE/GDP as Dow Climbs 0.8% on Mixed Earnings

S&P 500 trades essentially flat on April 30 after mixed PCE inflation, GDP data, and mega-cap earnings, with Dow rising 0.8% led by Caterpillar's double-digit jump. The index surged from three-month lows near 6,368 on April 21 to records near 7,145 by April 24, driven by Trump's April 22 ceasefire extension and semiconductor rally featuring Intel +23.75% and AMD +15%. An April 28 OpenAI growth miss triggered a 0.5% drop and equal-weight index's six-day slide amid US-Iran stalemate, yielding pre-FOMC mixed action as tech offset 5% WTI crude spike and 4-week yield highs.