The stock market rally continues to gain steam, and its angle of ascent seems to be climbing as well. It's a fitting culmination for a year in which equities could finish the year 30% higher and end the last three months with a 10-15% gain.

The last two weeks of the trading year and the first week of the new year are notoriously bullish seasonally. And this trend is more pronounced in pre-election years and in years when the S&P 500 Index is more than 20% higher. Essentially, this is not the time to try to be a contrarian hero and fight the market's primary trend.

Stock Market Strength Overwhelming

Currently, the S&P 500 Index (SPY  ) is in the midst of a lockout rally, making new highs on a daily basis. A lockout rally is one that fails to meaningfully correct, not letting bears get out of short positions and not giving bulls any dips to buy. This circumstance is frustrating and can lead to violent, blow-off tops.

However so far, the stock market's internals remains steady, and this buying climax doesn't seem imminent. Breadth measures remain strong but not so one-sided that it would hint at a looming reversion to the mean. For example, the ARMS Index compares the volume of advancing stocks to the volume of declining stocks, and it's yet to hit "red-line" readings that would indicate buying exhaustion. The NYSE cumulative Advance-Decline line is another breadth measure that is breaking out with the S&P, signaling that this bull market has plentiful liquidity and the requisite broad participation.

Lack of Divergences

Over the course of this rally, there have been moments of concern with areas of the market underperforming like high-yield credit, emerging markets, or small-caps. However, each of these lagging sectors has turned into leaders over the past few weeks and have broken out or are on the verge of breaking out. These rotations are another indication of a healthy bull market.

Rotations within bull markets are healthy. Overbought stocks or sectors consolidate gains and work off excess bullish sentiment. The exact scenario is playing out with FAANG--Facebook (FB  ), Apple (AAPL  ), Amazon (AMZN  ), Netflix (NFLX  ), Google (GOOGL  )--stocks which led the market higher for the first half of the year. In the last few months, they have been range-bound as other sectors caught a bid. Now, they are once again resuming a leadership role and look ready to enter 2020 with strong momentum.