Share buybacks speak louder than words.And September saw Singapore’s blue-chips speaking volumes.When companies deploy their own cash to repurchase shares, they’re betting on themselves at current prices, signaling to astute investors that management sees value others might be missing. Three heavyweight names caught our attention this month with significant buyback activity: banking giants OCBC and UOB, alongside energy-to-urban solutions player Sembcorp Industries. Here’s what their repurchase programs rev ...