A significant part of Taiwan’s rise, however, can be traced to the outsized influence of a single company, Taiwan Semiconductor Manufacturing Company (TSMC). The chipmaker now accounts for nearly 42 per cent of the benchmark index, highlighting a high level of concentration in the market. TSMC’s stock has surged around 50 per cent so far in 2026, riding the global wave of demand for AI-related technologies, where it holds a dominant position in advanced semiconductor manufacturing, Bloomberg reported.
