The calendar flipped to December today with investors hoping one of the market's most reliable month delivers again.

The S&P 500 has averaged a 1.4% gain in December since 1950, with the index finishing higher 73% of the time and boasting the strongest winning rate of any month.

In an emailed note sent Monday, Adam Turnquist, chief technical strategist for LPL Financial, indicated that the index usually "hovers near the flatline during the first half, with upward momentum building around the 11th trading day of the month."

When December is positive, the average gain is a robust 2.9%. This compares to an average loss of 2.6% in negative years.

Those seasonal currents matter for several S&P 500 stocks that tend to shine as the year closes. Here's a look at seven names with decades of historical upside during the full December month.

Which Stocks Show The Strongest Seasonal Edge In December?

Looking at S&P 500’s stocks showing the strongest and most consistent gains in December, cruise operators dominate the top of the seasonality list.

Carnival Corp. (NYSE:CCL) has logged a 5.4% average December gain over the last 30 years. December stands as its best month, with a 67% winning ...