The S&P 500 large caps closed 2015 essentially flat on a total return basis, while the NASDAQ 100 showed a little better performance at +8.3% and the Russell 2000 small caps fell -5.9%. Overall, stocks disappointed even in the face of modest expectations, especially the small caps as market leadership was mostly limited to a handful of large and mega-cap darlings. Notably, the full year chart for the S&P 500 looks very much like 2011. Read more about Sector Detector: New Year brings new hope after bulls lose traction to close 2015

Scott MartindaleLast week brought even more stock market weakness and volatility as the selloff became self-perpetuating, with nobody mid-day on Wednesday wanting to be the last guy left holding equities. Hedge funds and other weak holders exacerbated the situation. Read more about Sector Detector: Sharp selloff in stocks sets up long-awaiting buying opportunity