Greenblat strategy.  buy 20 - 30 stocks that meet his criteria every year.  This strategy will not work every year, but overall the long term, it will generate about 15 - 20% return

1. Pre-tax earnings yield => 1/ (EV / EBIT) > 20%
2.  Pre-tax ROC = EBIT / tangible capital employed > 100% => TCE = tangible fixed assets + inventories & receivables - non-interest bearing liabilities
3. Invest in companies > certain market cap