CoinMeta data: Since October 2022, the S&P 500 index has risen by 117%, with its market value increasing by nearly $40 trillion, mainly driven by stocks related to artificial intelligence. However, the performance of the equal-weight S&P 500 lags behind, setting a record low of 52 percentage points, highlighting the narrow leadership of this rebound. NVIDIA's stock price has risen by more than 1900%, while the yield on government bonds recently reached 5.34%. Investors are increasingly concerned about whether earnings growth will be able to support this bull market.