ETFRx.com is your prescription for successful investing strategies in exchange-traded funds (ETFs) and related products with free research tools and commentaries. I am a pharmacist and index developer for ETF Innovators, LLP, who has been investing since August 1997 and freelance writing for investors since April 2007. I am also an avid runner [PDF] since 1992 and have completed 18 marathons (26.2 miles) with a personal best time of 2 hours, 54 minutes.