Swiss Prime Site, CH0011029946

Swiss Prime Site stock heads into the open after a flat close

Published on 09/23/2026 at 03:36 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

At the close on September 21, 2026, Swiss Prime Site stock was nearly unchanged on SIX while the SPI gained 1.26 percent to 19,760.15 points. Swiss Prime Site had no documented company event scheduled for September 22, 2026.

Swiss Prime Site AG (CH0011029946) - Pop-Art-Comic
Swiss Prime Site AG (CH0011029946) als lebendiger Pop-Art-Comic mit Halbtonrastern, Sprechblasen und knalligen Kontrastfarben, Illustration mit AI erstellt.

Swiss Prime Site stock closed nearly unchanged in Swiss francs on the SIX Swiss Exchange on September 21, 2026. The SPI gained 1.26 percent to 19,760.15 points in the same session, leaving the shares behind the broader Swiss market.

September 21, 2026 in numbers

Swiss Prime Site AG (ISIN CH0011029946, SIX: SPSN) finished nearly unchanged on SIX on September 21, 2026. The close remained within the reported daily range and the 52-week range, although the available market report does not state the exact closing price, percentage change, high, low or volume.

The SMI closed at 13,956.58 points after gaining 1.23 percent on September 21, 2026. Swiss Prime Site therefore underperformed both the SPI, which added 1.26 percent, and the SMI, which rose 1.23 percent, in the same session.

September 23, 2026 outlook

Swiss Prime Site is an SIX-listed real estate stock, making the documented Swiss equity market comparison relevant for the session ahead. The latest company-specific market report from Ad Hoc News described no documented company event for September 22, 2026.

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