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Cartesian Capital Monthly Report – September 2025

The FTSE/JSE Top 40 Index advanced 7.18% in September, led by robust gains in the mining and financial sectors. Naspers/Prosus also contributed to the rally, buoyed by positive momentum in Chinese technology stocks. In the bond market, foreign investors continued to increase their exposure, with offshore holdings of nominal bonds rising to 33% from 30.9%, concentrated in longer-dated maturities including the R2035, R2037, R2040, R2044, and R2048. Net foreign inflows for the month reached R76.5bn, bringing year-to-date inflows to R163.6bn. Domestically, monetary authorities hold 19% of nominal bonds, while insurers, pension funds, and collective investment schemes account for 47.9%, slightly down from the previous month.