PUBLISHED January 16, 2026
According to “SIX Börsenkennzahlen: Dezember und Gesamtjahr 2025” from Schweiz.biz, the year 2025 marked a significant period of expansion and momentum across the Swiss and Spanish stock exchanges operated by SIX. Both markets reached historic peaks in their flagship indices and demonstrated broad-based progress across trading, listings and investor participation.Behind these numbers lies a delicate balance between improving domestic activity and persistent challenges in international markets.
Although certain sectors are slowly gaining momentum, others continue to struggle under the weight of external factors, leaving the overall outlook mixed rather than uniformly optimistic. Across the board, the Swiss Market Index (SMI®) and Spain’s IBEX35® delivered remarkable gains. The SMI® lifted past the 13,000-point threshold for the first time in February and held its elevated level through the final trading sessions of December. Meanwhile, the IBEX35® surged even more dynamically, reflecting robust investor confidence. However, the rebound in spending and investment is far from robust.
Many firms remain cautious, limiting hiring and expansion until global uncertainties and structural bottlenecks become clearer or more predictable. What stood out in 2025 was not just the rise in headline indices but also the surge in everyday market activity: more trades, larger volumes and strong participation in both traditional equities and emerging segments like ETFs and structured products.