Update on Momentum Stocks

Here’s an update to the chart of the historical performance of momentum stocks. This is one of the most fascinating phenomena in finance. Stocks that have done well, on average, continue to do well.
The chart shows the historical performance of stocks ranked by momentum decline (meaning 10% slices).
image951.png
The deciles are perfectly rank ordered. The stocks that had been doing the best, do the best. The stocks that had been doing the worst, fare the worst.
The data comes from Dr. Ken French’s website. Just to be clear, momentum is defined by performance over the 11-month period starting 12 months ago and ending one month ago. The one-month directly prior to each period is excluded. At the end of the month, the whole thing is repeated. The data series goes back over 80 years.
Here’s how each decile has performed:
Decile 1: 16.79%
Decile 2: 13.11%
Decile 3: 12.42%
Decile 4: 10.63%
Decile 5: 9.42%
Decile 6: 8.47%
Decile 7: 8.05%
Decile 8: 5.73%
Decile 9: 4.54%
Decile 10: -1.73%

Posted by on June 22nd, 2010 at 2:59 pm


The information in this blog post represents my own opinions and does not contain a recommendation for any particular security or investment. I or my affiliates may hold positions or other interests in securities mentioned in the Blog, please see my Disclaimer page for my full disclaimer.