SINGAPORE – Singapore’s benchmark stock index turns 60 in 2026, making it almost as old as the nation itself. But history is not the only thing the Straits Times Index (STI) shares with Singapore; it is woven into the very fabric of our daily lives.From the bank where we deposited our first pay cheques and the telco behind our first mobile phones to the national airline of our family holidays and the builders of our cityscape, these are the companies that shaped our home. The STI’s diamond jubilee is more than just a corporate milestone. It is a vivid reminder…