Weekly seasonality turns positive for equities

Weekly seasonality for the S&P 500 (SPX) going back to 1950 flips bullish this week and remains positive into the first week of January. If today's rally continues in accordance with this stronger pattern for seasonality, it would bode well for the developing bullish cup and handle on the SPX from late October that we have highlighted in this blog, research notes, and on the Charted Line Webinar.

Chart 1: S&P 500: Average weekly returns: 1950-2025

The Dow Jones Industrial Average has a similar bullish pattern for weekly seasonality going back to 1900.

Chart 2: Dow Jones Industrial Average: Average weekly returns: 1900-2025

The broad-based NASDAQ Composite shows positive weekly seasonality from this week into mid February using data going back to 1972.

Chart 3: NASDAQ Composite: Average weekly returns: 1972-2025

The broad-based NYSE Composite shows positive weekly seasonality from this week into early January using data going back to 1966.

Chart 4: NYSE Composite: Average weekly returns: 1966-2025