AI Is Holding Up the Market While the Real Economy Cracks

1. AI megacaps are masking weakness in the broader market

• Just 42 stocks are driving most of the S&P 500’s gains this year, compared with a historical norm of ~100.

• The S&P 500 is up 12% since March, almost entirely due to AI-driven giants: Nvidia, Alphabet, Microsoft, Apple, Meta, Broadcom.

• The equal‑weighted S&P is up only half as much, highlighting how narrow the rally is.

2. A widening split: “Two separate economies — AI and non‑AI”

• The market is no longer just “K‑shaped”; it’s bifurcating into:

  • AI beneficiaries with explosive returns.

  • Everyone else, where demand is weakening and consumers are stressed.

3. Three earnings reports reveal real economic strain

These companies are tiny relative to Nvidia, but they expose cracks in the real economy:

• Shake Shack

  • Same‑store sales turned negative in April.

  • Tourism slowdown in major cities.

  • Stock dropped ~30%.

• Planet Fitness

  • Missed growth targets.

  • Lower‑income consumers under “mounting pressures.”

  • Shares fell ~30%.

• Whirlpool

  • 10% drop in appliance demand in March — compared to GFC‑era sentiment.

  • Suspended its dividend.

  • Shares down ~40% YTD.

4. Macro pressures are hitting non‑AI sectors hard

• High interest rates

• Persistent inflation

• Gasoline prices 45% higher YoY, driven by the Iran war

• Consumers at the lower end are tightening spending

5. AI IPOs could make the imbalance even more extreme

• Potential 2026 IPOs: SpaceX, Anthropic, OpenAI.

• Their inclusion in indices would further skew market-cap‑weighted benchmarks toward AI.

6. The S&P’s structure is both a blessing and a risk

• Market‑cap weighting currently shields investors from weakness in smaller companies.

• But if AI expectations cool, investors could face the worst of both worlds:

  • AI stocks fall

  • Non‑AI sectors remain weak --FT