
Since reaching market lows on March 30, the S&P 500 has delivered a 16% gain, according to reports from Investing.com India. However, this recovery has been remarkably concentrated, with only 10 companies accounting for nearly 70% of the index's total performance. The most significant contributors to this rally have been Alphabet and Nvidia, which alone contributed approximately 25% of the overall gains, highlighting the extreme concentration of market gains during this period. Recent analysis suggests that AI and semiconductor earnings remain the most critical support for US stocks, with no clear reversal in the memory cycle observed yet.
The S&P 500 has experienced recent volatility, with the index falling due to hot April CPI data, geopolitical tensions related to Iran, and declining chip stocks, as reported by Investing.com India. Despite these headwinds, the index maintains its 16% gain from the March lows, demonstrating resilience amid challenging market conditions. CPI release looms as a critical catalyst for determining short-term market direction, with Goldman Sachs postponing expectations for the Federal Reserve's next rate cut to December. If core CPI shows only energy-driven inflation with controlled core inflation, growth stocks may not face sustained pressure, particularly benefiting AI and semiconductor sectors.
This earnings season has delivered exceptional results, with 320 companies from the S&P 500 already reporting results, according to Bloomberg data cited by Negligible Capital. On average, earnings have come in 20% above expectations, marking one of the strongest profit surprise periods in recent years for US companies. This robust earnings performance has provided underlying support for the market despite recent volatility and concentration concerns, with semiconductor earnings continuing to drive the rally forward.
The PHLX Semiconductor Index has risen approximately 66% year-to-date, clearly outperforming the S&P 500 and Nasdaq Composite. Despite appearing overheated based on price performance, the sector differs from typical bubbles as it's driven by upward revisions in earnings rather than purely valuation multiples. The SOX index currently trades at about 28 times forward earnings, which is not cheap but still below historical peaks. More importantly, forward earnings per share have risen approximately 69% since the beginning of the year, while the sector's forward price-to-earnings ratio has slightly declined by about 2%. The memory sector shows even more dramatic performance with average stock price increases of approximately 264% this year, though forward earnings expectations have risen 386% with corresponding valuation multiples declining by about 21%.
The S&P 500 currently trades at approximately 21 times forward earnings, compared with about 14 times for the Stoxx Europe 600, as reported by Factset data. This 7-point valuation gap represents the largest seen since the 2008 financial crisis, with Europe's dependence on external energy sources and geopolitical tensions weighing on investor confidence while the US benefits from stronger energy independence and continued technology sector growth. The current rally in US stocks can no longer be based solely on imminent rate cut expectations, requiring more focus on corporate earnings realization.