This blog entry is going to roughly test the viability of trading a simple strategy known as the "opening gap" in the S&P 500 over a period of 10 years. I stopped at 10 years because this is what I could find freely and simply available in my cursory search of the Internet. First some background: Ever since I moved to Washington D.C., I had an interest in finance and economics. The catalyst for my interest was the lack of affordability of housing, another story. I've since considered investing and opportunistic trading, hobbies. Well before the 2008 financial crisis I played around and realized I was not disciplined enough for day trading. After that short-lived bout with losses, I tried my hand at buy and hold, buying what I perceived to be good companies at what I perceived to be a discount. I studied fundamental analysis and technical analysis. I looked for the "Holy Grail", but I tended to be flummoxed by the gap between different ...