Indices can also be 3G and an excellent example is the US NASDAQ 100 index, which I rate as the world's most exciting index. You can buy shares in ETFs (exchange traded funds) to track this index (QQQ) and even shares that offer three times leverage (QQQ3). Both these trackers have been recommended numerous times in QV's sister publication, Quentinvest for ETFs and they are doing very well.