B1G Numbers May 2025: Key Figures from Exchanges

On SIX Swiss Exchange, trading turnover across all segments amounted to CHF 92,196 million in May 2025. Since the start of the year, total turnover is up 24.1%, having reached CHF 525 billion. With just over 4 million, the number of transactions is lower than April, but compared to last year, SIX Swiss Exchange recorded over 18% more trades at the end of May than in 2024. The Swiss blue chip index SMI stood at 12,227 points at month-end; year-to-date, it progressed 5.4%.

On BME Exchange, turnover reached EUR 40.8 bn in May and over EUR 200 bn ytd, 7.7% more than last year. The number of transactions has reached over 14.8 mn, 4.6% more than at the end of May 2024. The Spanish blue chip index IBEX 35 progressed by 6.5% and reached 14,152 points; the annual performance has therefore risen to 22.1% 

In the video below, Pascal Hollenstein, Senior Relationship Manager, Exchanges, SIX, presents further highlights of May 2025, covering both SIX Swiss Exchange and BME Exchange. 

The B1G Numbers videos provide transparency for the the market and wider public. This includes the development of trading volumes, the number of trades and the performance our blue chip index SMI, among other highlights. Discover previous editions