The US financial market experienced a day of high tension. The September consumer inflation figure arrived at 3.7% year-over-year, exceeding the 3.6% projected by analysts. This increase, although seemingly marginal, is enough for Wall Street to anticipate a scenario of higher interest rates.
Wall Street in Red: The Main Indices
The reaction was immediate and coordinated across New York's main stock indices:
| Index | Close | Variation |
|---|---|---|
| S&P 500 | 7,718.94 | -1.11% |
| Nasdaq | 26,692.87 | -1.88% |
| Dow Jones | 51,621.48 | -0.09% |
| Philadelphia SE (SOX) | - | -4.3% |
AI and Hardware: The Hardest Hit Sector
Companies linked to Artificial Intelligence, which had been the growth engine in 2026, suffered a severe correction. The sensitivity of these stocks to interest rates left them at the center of the adjustment:
- CoreWeave: Fell 15%.
- Dell: Plummets 11.4% following negative reports from Barclays.
- Nebius: Lost 10% of its value.
- Oracle: Retreated 8.8%.
- HP Enterprise: Dropped 8.2%.
In contrast, Apple managed to remain calm with a rise of 0.5%, marking a historic milestone by exceeding a market valuation of $5 trillion for the first time.
Key Movements and Million-Dollar Fines
It wasn't all inflation. The banking sector also suffered shocks. Bank of America fell 4.8% after receiving a regulatory fine of $1.2 billion. On the other hand, the giant Berkshire Hathaway shifted the board by investing $330 million in Vimeo and AOL (owned by Bending Spoons), sending the latter's shares skyrocketing by 41%.
As Adam Sarhan, CEO of 50 Park Investments, rightly pointed out, inflation remains "enemy number one" for both investors and the Federal Reserve.
Source: Imago