Investors don’t know what to make of the US stock market today. Like being on a roller coaster, they are thrilled by the recent rise in shares but dread the drop which may come next. In their bewilderment, they may miss a great gift the stock market has created. For context, NASDAQ Composite Index (INDEX: .IXIC) has rallied by nearly 33 per cent for the first half of this year, clocking its biggest gain since 1983. This run comes as a huge relief after the bellwether technology index suffering a similar-sized decline last year. At the same time, there is apprehension over how long this rally will last. Those who are invested are fearful of losing what they have gained. Meanwhile, others who are sitting on the sidelines are perplexed over whether to wait or risk losing out on further gains. Interestingly, both parties may be missing out on a simple point....