JPMorgan warns of a downturn ahead and AI stocks may be to blame

• The current rotation differs from Q4 2025: capital is moving from AI/tech into defensive sectors due to risk reduction, not economic confidence, as investors question AI infrastructure spending payoffs
• JPMorgan draws parallels to the 2000 tech bubble, noting similar patterns of excessive valuations in leading stocks and doubts about payback timelines on late-stage buildouts (then telecom equipment, now AI infrastructure)
• Market internals show weakness despite headline strength: hardware and hyperscale computing stocks struggle to reclaim resistance levels, while the S&P 500 has already pulled back 1.5% from recent highs

Summary

Key Warning: JPMorgan Chase warns that the U.S. stock market rally may be losing momentum, with AI stocks posing the primary risk. Technical strategist Jason Hunter identifies deteriorating market internals beneath seemingly stable index levels, resembling a "topping process" rather than a healthy consolidation.

Main Concerns:

• The S&P 500 has pulled back approximately 1.5% in recent sessions
• AI stock conviction is "slowly unraveling," threatening the trade that powered much of this year's gains
• Market weakness coincides with historically unfavorable seasonal patterns (late summer/early fall)
• Hardware and hyperscale computing stocks are struggling to reclaim resistance levels set earlier in 2026

Market Dynamics:

The current rotation differs from Q4 2025, when capital flowed from tech into pro-growth cyclical sectors. Today's movement appears defensive, with investors trimming crowded AI positions and moving into safer market areas—signaling risk reduction rather than economic confidence.

Historical Parallel:

JPMorgan draws comparisons to the 2000 dot-com bubble, when excessive valuations in technology stocks preceded a prolonged downturn. Similar doubts about AI infrastructure spending payback timelines mirror concerns about late-stage communications equipment buildout from that era.

Trading Recommendations:

• Consider shorting QQQ or buying puts on the Nasdaq-tracking ETF
• Underweight semiconductor stocks, particularly NVIDIA and AMD
• Exercise caution as post-Labor Day trading typically brings increased volatility

Key Risk: A surprise acceleration in AI earnings and capital expenditure cycle could invalidate the bearish thesis and trigger a market squeeze higher.

JPMorgan emphasizes caution over outright capitulation, noting that fading conviction in the market's dominant trade rarely ends well during seasonally weak periods.