Last week, Singapore’s Straits Times Index (SGX: ^STI) touched a new 52-week high.Yet, as some blue chips surged, others stumbled.September 2025 painted a mixed picture for Singapore’s largest companies. While the market rallied, three blue chip losers caught investors’ attention – not just for their monthly declines, but for the stories behind those falls.Simply said, the question isn’t about “which blue-chip stocks fell?” but rather “are these temporary setbacks or warning signs?” So, let’s take a look at ...