Singapore's Straits Times Index (SGX: ^STI) hasn't had a bad run.
The SPDR STI ETF (SGX: ES3), which tracks the benchmark, delivered a solid 24% total return over the first eight months of 2026.
Yet three local mid-caps made that return look almost modest.
AEM Holdings (SGX: AWX) delivered 411.3% in total returns over the same period.
These are total returns, factoring in reinvested dividends rather than raw share price gains.