What Will the Q3 Earnings Season Show?

S&P 500 Q3 earnings estimates have undergone significant negative revisions, now projecting +3.9% growth (down from +6.9% at the start of July), largely supported by the Technology sector's +11.2% and the 'Magnificent 7' companies' +17% earnings growth. Excluding Tech, the index's earnings growth is a modest +1.1%. Simultaneously, major banks including JPMorgan, Bank of America, and Wells Fargo anticipate Q3 earnings declines, with the broader Major Banks industry forecasting a -16.5% drop amid pressures on net interest margins and loan demand. This widespread negative revisions trend, impacting 14 of 16 sectors, underscores a challenging macroeconomic environment and tempered expectations.

Analysis

The outlook for S&P 500 Q3 earnings has deteriorated significantly, with growth estimates revised down from +6.9% to +3.9% since the start of July, reversing a previously favorable trend. This headline figure is heavily skewed by the performance of the Technology sector, which is projected to deliver +11.2% earnings growth; excluding its contribution, the rest of the index would grow by a meager +1.1%. The 'Magnificent 7' alone are forecast to post +17% earnings growth, further masking broad-based weakness that has seen negative estimate revisions across 14 of 16 Zacks sectors. The banking sector faces a particularly challenging quarter, with the Major Banks industry expecting a -16.5% year-over-year earnings contraction. Major institutions like JPMorgan (JPM), Bank of America (BAC), and Wells Fargo (WFC) are anticipating earnings declines of -6.2%, -10%, and -8.6% respectively, driven by compressed net interest margins and anemic loan demand. JPMorgan's recent downbeat management commentary on its 2025 outlook has already pressured its stock and suggests consensus estimates are poised to come down further, despite the stock's longer-term outperformance.

Key Decisions for Investors

• Given that S&P 500 earnings growth is almost entirely dependent on the Technology sector, investors should scrutinize portfolio concentration in non-Tech holdings, as the headline +3.9% growth figure masks significant underlying weakness.
• Consider a cautious or underweight stance on the major banks sector ahead of Q3 results, as the consensus forecast for a -16.5% industry-wide earnings decline, coupled with cautious management guidance from leaders like JPMorgan, points to persistent fundamental headwinds.
• Monitor forward-looking commentary from cyclical sectors like Transportation, as the current negative revisions trend suggests weakening end-market demand is a more significant concern than moderating input costs.
• Despite JPMorgan's strong historical performance, its recent pullback following cautious 2025 guidance warrants attention, as further downward estimate revisions could create near-term volatility around its October 11th earnings report.