Swisscom stock heads into the open after a 0.81% slip
Published on 09/21/2026 at 09:08 | Editorial responsibility: Rafael MĂĽller, Editor-in-Chief AD HOC NEWS
Swisscom stock closed at CHF 41.55 on the SIX Swiss Exchange on September 18, 2026, marking a 0.81% decline from the previous session. The move left the shares below the Swiss Market Index level, which also ended lower on the same day, underscoring a weaker Swiss blue-chip backdrop.
September 18, 2026 in numbers
Swisscom AG (ISIN CH0008742519, SIX: SCMN) finished the September 18, 2026 session at CHF 41.55 on the SIX Swiss Exchange, down 0.81% on the day according to exchange data cited by MarketScreener. The same overview showed the Swiss Market Index closing at 13,786.72 points on September 18, 2026, providing a reference level for Swiss blue chips ahead of today’s session as reported by finanzen.ch. Based on figures cited by Ad-hoc News, the Swisscom American depositary receipt on the OTC market closed at USD 79.19 on September 18, 2026, down 2.85% with an intraday range between USD 78.10 and USD 79.46 and a 52-week corridor from USD 68.01 to USD 94.63, offering an additional venue perspective for international investors.
Index reshuffle and events today
A key factor for Swisscom ahead of today’s session is an index reshuffle: SIX announced that Galderma and Sandoz will join the Swiss Market Index while Swisscom and Kuehne+Nagel will leave the SMI as of September 21, 2026, according to a statement by the exchange operator reported by Investing.com. The overview of upcoming index changes dated September 21, 2026 confirms these SMI adjustments and treats September 18, 2026 as the last session under the old composition, as summarized by finanzen.ch. With investors also monitoring Swisscom’s next results date mentioned in recent coverage, the combination of an SMI exit effective today and the broader Swiss equity backdrop is likely to shape trading interest in the shares once the Zurich market opens.
