Swisscom stock heads into the open after a 0.92 percent drop

At the close on September 23, 2026, Swisscom stock stood at CHF 645.00 on SIX after falling 0.92 percent, while the SMI lost 0.23 percent to 13,921.72 points.

Swisscom stock closed at CHF 645.00 on SIX on September 23, 2026, down 0.92 percent. The SMI fell 0.23 percent to 13,921.72 points, so Swisscom underperformed the reference index by 0.69 percentage points.

September 23, 2026 in numbers

Swisscom AG (ISIN CH0008742519, SIX: SCMN) ended the session at CHF 645.00 on September 23, 2026, according to dated SIX market data reported by AD HOC NEWS. The stock fell 0.92 percent, compared with the SMI decline of 0.23 percent to 13,921.72 points.

Swisscom therefore lost 0.69 percentage points relative to the SMI during the same SIX session. Swiss markets are open for the next scheduled session on September 25, 2026.

September 25, 2026 session

Swisscom enters the pre-market period with the last completed SIX close at CHF 645.00. The market backdrop includes scheduled US economic releases and Federal Reserve speakers listed for September 25, 2026, including a speech by FOMC member John Williams, according to Investing.com.