AEX closes 0.4 percent lower as chip stocks retreat
Published on 10/15/2026 at 18:36 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWSTechnology losses and next dates
- AEX finished at 1,132.58 points, down 4.51 points or 0.4 percent on October 15, 2026.
- US inflation reached 3.7 percent year over year versus 3.6 percent expected, pressuring AI-linked shares.
- ASMI fell 7.2 percent, the sharpest AEX decline, while Wolters Kluwer gained 4.3 percent.
- Eurozone inflation and trade data are due October 16 at 11:00 a.m. CEST.
The AEX closed on October 15, 2026 at 1,132.58 points, losing 4.51 points or 0.4 percent. US inflation accelerated to 3.7 percent year over year, above the 3.6 percent expected, according to IEX.
ASMI was the biggest drag, falling 7.2 percent as investors sold semiconductor shares. The AEX had closed at a record 1,137.09 points on October 14, based on ANP via RD.
Why did the AEX fall on October 15?
Higher US inflation revived concern that borrowing costs will stay elevated. That pressured AI-related shares after a global technology sell-off, while doubts about the returns on AI infrastructure added to the selling.
At 9:50 a.m. ET, the Dow Jones Industrial Average was up 0.3 percent at 51,785.06 points. The S&P 500 was down 0.4 percent at 7,686.74 points, while the Nasdaq Composite lost 1.1 percent, Reuters via Yahoo Finance reported.
Winners and losers in the AEX
Closing stock moves for October 15 came from the same Amsterdam session, as listed by Investing.com:
- Wolters Kluwer up 4.3 percent
- RELX up 4.0 percent
- KPN up 3.0 percent
- ASMI down 7.2 percent
- Besi down 6.4 percent
- ASML down 4.2 percent
AEX course reverses after record close
Chip stocks reversed the optimism that followed ASML's results on October 14. ASMI, Besi and ASML led the decline as investors reassessed AI valuations, financing costs and demand expectations.
The AEX ended 4.51 points below Wednesday's 1,137.09-point close. The index therefore gave back part of the previous session's record-setting advance.
What comes next for the AEX
- October 16, 2026, 7:00 a.m. CEST: CM.com is scheduled to publish third-quarter results, IEX lists.
- October 16, 2026, 11:00 a.m. CEST: Eurozone September inflation and August trade data are scheduled, with inflation expected at 3.8 percent year over year, Tostrams shows.
- October 16, 2026, 8:30 a.m. ET: US September import prices are due, followed by industrial production at 9:15 a.m. ET, Live Trading News reports.
