We have finally completed a mammoth 3 month long project of  back-testing of the Piotroski strategy on the JSE.

We examined over 2,500 seperate financial reports over a 14 year period commencing 1994 to build this backtest, to deterimine if Piotroski is a suitable investing strategy for the JSE.

The results are quite stunning, with the winning Piotroski strategy delivering in excess of 40,000% returns (56% CAGR) over the 14 year test period. You can go view the research in the Piotroski Long-term JSE Backtest section.