There are two bullish seasonal patterns at work right now. First, stocks have shown a strong tendency to advance in December. Second, small-caps have shown a strong tendency to outperform large-caps in December. Over the last twenty years, the S&P 500 has risen 75% of the time and the average gain was 1.60%. The Russell 2000 has risen 90% of the time and the average gain was 3.5%. Yes, you read right. Don’t take my word for it, check out our seasonality charts below. This is a pretty staggering statistic that gives the Russell 2000 a bullish bias heading into yearend.