There are many strategies comprising market beating formulae and other methods that claim to beat the market (and, in most cases market means US markets). Do they work. Well, some of them, actually, yes – but with caveats. You need to watch out for data mining, but where this has not been the driver you find some approaches based on sound logic that have consistently beaten the market.
Normally the underlying root cause is that the selected investments have been out of favor. You identify these and buy them and intend to hold them for a long enough time that they come back into favor and, as a result, increase in price at a faster rate than the market.
Below are a list of some of the more popular market beating strategies, with links to more information: