Swiss Prime Site AG (SPSN.SW) stock: Winston Score, insiders and Congress trades

Swiss Prime Site is one of Switzerland's largest publicly listed real estate companies. It owns and manages a large portfolio of commercial properties — mainly office buildings, retail spaces, and mixed-use developments — located primarily in Swiss cities like Zurich, Geneva, and Basel. Its tenants are mostly businesses, retailers, and other organizations that lease space for their daily operations. The company makes money by collecting rent from tenants under long-term lease agreements, which provides relatively steady income. It also operates a real estate services division that offers property management and development services to outside clients, adding a fee-based revenue stream on top of rental income. Swiss Prime Site benefits from a strong position in a market with limited new supply and strict building regulations, which helps protect occupancy rates. The main risk is rising interest rates, which increase borrowing costs and can reduce the value of its property portfolio over time.