It’s been a challenging year. But 2020 is ending on a high note. Singapore’s Straits Times Index (SGX: ^STI) has surpassed the 2,800 mark, rallying by over 27 per cent from its March 2020 bottom. The US-based S&P 500 (INDEXSP: .INX) closed 16 per cent above where it was at the start of 2020. At the same time, the NASDAQ (INDEXNASDAQ: .IXIC) composite index is doing one better and chalked up a 42 per cent gain for 2020. For all we know, a stock market bull run may have already begun. Volatility is the old normal Even as stock markets around the world march upwards, there are lingering concerns. If you haven’t invested in 2020, you might feel like you have missed the boat. And you may think that buying stocks today will only lead to heartache later when share prices fall soon after you buy. The fear is heightened by the memory of the Singapore Straits Times Index falling by over 30 per cent from its peak to trough back in March....