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Weekly Factor Returns
Volatility was positive in each index. The most volatile stocks outperformed the least volatile, on average, across the capitalization spectrum. Volatility was strongest in the Russell 2000 where the spread was +2.01%.
Brian
22 hours ago
Weekly Factor Returns
Medium-term momentum (MTM), within the small cap universe, experienced the largest move in terms of absolute return. The small cap MTM spread was +1.26%. MTM was positive in the Russell 1000 and negative among mid cap stocks.
Brian
Dec 29, 2025
Weekly Factor Returns
Medium-term momentum (MTM) reversed sharply last week. Stocks that had outperformed the most over the previous six months underperformed last week. MTM fell the most in the small cap universe (-2.78%). The small cap MTM spread was one standard deviation below its average.
Brian
Dec 15, 2025
Weekly Factor Returns
Value was negative as investors were less sensitive to prices relative to financial metrics. Stocks with the most attractive valuations underperformed those with the least attractive valuations by 5.52% in the Russell 2000, on average. The negative return to Value among small caps was the largest in terms of its exceeding normal expectations. The small cap Value return was 2.75 standard deviations below its weekly average.
Brian
Dec 8, 2025
Weekly Factor Returns
Higher Volatility was the main driver last week. Stocks exhibiting the most Volatility outperformed those with the least Volatility across the capitalization spectrum. The small cap Volatility spread was +7.28% which was greater than two standard deviations above average. The large and mid cap spread were both greater than +6.5% and were also two standard deviations above their averages.
Brian
Dec 1, 2025
Weekly Factor Returns
Value was a positive influence, particularly among small caps. The most attractively valued securities outperformed the least attractively valued by 4.13% in the Russell 2000. The small cap Value spread was greater than one standard deviation above average. Value was positive in the large capitalized indices, but to a lesser degree.
Brian
Nov 17, 2025
Weekly Factor Returns
Value was a clear performance driver across all stocks. The most attractively valued securities outperformed the least attractive by 3.65% and 4.07% in the large and mid cap universes, respectively. The large cap spread was greater than one standard deviation above average, while the mid cap spread was two standard deviations above average. In the small cap universe, the Value spread was +7.36%. This equated to a three standard deviation move.
Brian
Nov 10, 2025
Weekly Factor Returns
Medium-term momentum (MTM) was a strong driver of returns, particularly in the large and mid cap universes. Stocks that outperformed the most over the previous six months continued to outperform last week. The large cap MTM spread was +4.46% and the mid cap MTM spread was +4.02%. Both were greater than one standard deviation above their respective average.
Brian
Nov 3, 2025
Weekly Factor Returns
Medium-term momentum (MTM) was strong in the large and mid cap indices. The MTM spread in the Russell MidCap was over 4.0%, while the large cap MTM spread was 3.23%. Both returns were greater than one standard deviation above their average. MTM in the small cap space experienced a small negative return.
Brian
Oct 27, 2025
Weekly Factor Returns
Medium-term momentum (MTM) was the lone factor with similar returns across all three indices in both direction and magnitude. Stocks that had outperformed the most over the past six months continued to outperform last week. MTM spreads were linear across the capitalization spectrum.
Brian
Oct 20, 2025
Weekly Factor Returns
Value was negative. The most attractively valued stocks underperformed the least attractively valued by 3.88% in the small cap universe, by 2.97% in the mid cap universe, and by 2.81% among large caps. Each spread was greater than one standard deviation below its weekly average.
Brian
Oct 13, 2025
Weekly Factor Returns
Both measures of Momentum were negative. Medium-term momentum (MTM) and Short-term momentum (STM) declined the most in the large and mid cap universes. Stocks that had outperformed the most over the past six months and four weeks tended to underperform last week.
Brian
Sep 29, 2025
Weekly Factor Returns
Medium-term momentum (MTM) was positive. Stocks that had outperformed the most over the preceding six months continued to outperform last week. Each MTM spread was greater than one standard deviation above average. Short-term momentum (STM) was slightly negative in each index.
Brian
Sep 22, 2025
Weekly Factor Returns
Medium-term momentum (MTM) was influential. The stocks that outperformed the most over the past six months continued to outperform last week. MTM spreads ranged from +2.95% (mid caps) to +4.54% (small caps). All three returns were greater than one standard deviation above their averages.
Brian
Sep 15, 2025
Weekly Factor Blog
Short-term momentum was the strongest factor in each index with each spread about +2.3%. Stocks that outperformed the most over the previous four weeks continued to outperform last week. The large and small STM spreads were just at one standard deviation above average.
Brian
Sep 8, 2025
Weekly Factor Returns
Factor returns were mostly linear across the capitalization spectrum, with the largest spreads in the small cap universe, followed by mid cap spreads, and the smallest among large caps. Medium-term momentum (MTM) was the lone factor that did not follow that exact pattern. All factor returns were positive and within normal ranges.
Brian
Sep 2, 2025