SIX Exchanges Figures: September 2025

The ETF segment on SIX Swiss Exchange was the strongest performing asset class across September, with trading turnover surging 66.6% from August and constituting a 48.7% increase over September 2024. Overall turnover grew by 18.3% compared to August to CHF 89.1 bn.

Fixed income trading turnover witnessed the greatest rise on the Spanish market, with BME Exchange reporting a month-on-month (MoM) increase of 60.5%. Equities turnover also saw a significant 24.6% rise compared to August. Overall trading turnover on the Spanish exchange grew 35.1% (MoM) in September to EUR 43.3 bn.

The combined turnover for both SIX exchanges rose by 22.9% compared to August, surpassing CHF 129.6 bn with 6,488,442 transactions (+13.7% MoM).

The month also saw Europe’s biggest listing so far this year year (based on the transaction volume of CHF 903 mn) with the successful IPO of SMG Swiss Marketplace Group on SIX Swiss Exchange – at an opening price of CHF 48.25 per share, the resulting market capitalization of SMG Swiss Marketplace Group was around CHF 4.7 bn.

The IBEX 35 continued its strong performance with a 3.6% increase over August to reach 15,475 points, with a YTD gain of 33.5%. The Swiss blue chip SMI® closed the month at 12,109 points, contributing to a 4.4% return since the start of this year.  

Gregor Braun, Head Cash Market Sales, Exchanges, SIX, commented: “Per end of September 2025, ETF trading on SIX Swiss Exchange is on track to establish a new record by the end of the year, with good momentum continuing as we enter the final quarter. Fixed income has also seen strong activity, especially on the Spanish market.” 

Detailed statistics on turnover and transaction volumes per segment compared with the previous month and previous year, on newly listed products and on the development of the most important indices can be found in the tables below. The website of SIX Swiss Exchange provides you with full access to our complete information offering. We provide you with the latest market data and comprehensive statistics for our entire securities universe. This includes order book information, prices, volumes and turnover figures as well as historical data and statistics. We also provide official notices of listed companies, management transactions and other relevant information to ensure safe and transparent trading. Discover more.