I started running a real-time experiment on Singapore’s stock market in January 2015 and documented the beginning in an article published in the same month titled The Best Shares in Singapore’s Stock Market. The experiment was to find out if the Magic Formula investing strategy works. The strategy was developed by investor Joel Greenblatt, who generated an astounding annual return of 50% from 1985 to 1994 according to The New York Times. In his 2005 book The Little Book That Beats The Market, Greenblatt shared the Magic Formula and his studies on it. You can find a detailed description of the investing strategy in The Best Shares in Singapore’s Stock Market, so I won’t repeat myself here. But one thing worth noting is that Greenblatt’s investing method requires a yearly refresh t