Learning From History

June 9, 2010

The only thing we learn from history is that we learn nothing from history. — Friedrich Hegel

There are few things I enjoy more than digging into a juicy morsel of stock market history. Roger Schreiner’s excellent article from Investment Advisor magazine certainly fits the bill, with a twist. The twist is that Mr. Schreiner examines the recent history of the Japanese stock market, which holds valuable lessons when trying to decide between an active, tactical approach and a passive approach. Here, for example, is one of the charts from the article demonstrating how difficult the market has been.

Source: Investment Advisor and dshort.com

He concludes, after his discussion of the Japanese experience:

You don’t have to be a market historian to know that stock markets are risky. But proponents of buy and hold would rather that you not focus on the stock market in Japan, or anywhere else for that matter. After all, the history of the U.S. stock market reads more like a romance novel, if you ignore a few of the most recent chapters, and that’s the story they would much rather tell.

History supports the idea that buy-and-hold investing is unlikely to provide acceptable returns. Wishful thinking and cherry-picking slices of market history that support passive investing are the only ways Wall Street can justify exposing investors’ assets to a passive philosophy.

He’s right that the deflation of the asset bubble in Japan is not often discussed in the United States. When it is, it is usually dismissed as a poor analog for cultural reasons. But what if it’s not a poor analog? In fact, cross-cultural studies of investor behavior suggest that markets and investors act pretty much the same everywhere. Maybe it’s time to learn something from history for a change.


High RS Diffusion Index

June 9, 2010

The chart below measures the percentage of high relative strength stocks that are trading above their 50-day moving average (universe of mid and large cap stocks.) As of 6/8/10.

(Click to Enlarge)

The 10-day moving average of this indicator is 22% and the one-day reading is 12%. The correction in the market over the last month has brought this indicator into oversold territory. Dips in this indicator have often provided good opportunities to add to relative strength strategies.


Volatility and Subsequent Returns

June 9, 2010

CXO Advisory has an excellent piece on volatility clusters and subsequent returns in the stock market. One thing that makes investors incredibly nervous is volatility. According to the DALBAR studies, price declines often cause investors to bail out, but my experience suggests that bouts of high volatility often have the same effect. Even if prices are relatively stable, volatility scares the heck out of everyone. The media has a tendency to attach an explanatory story to each day’s trading, so during periods of high volatility, the news background can seem particularly unsettling.

CXO was responding to an article that suggested that periods of high volatility were bear market signals, but CXO had a different read on the data. They defined a volatility as a close-to-close spread of more than 1% in the S&P 500 and looked for volatility clusters where there were more than 20 such days in a 40-day period. Taking the data back to 1950, they found that volatility clusters were typically followed by better-than-average returns.

Source: CXO Advisory

The graphic above is from the CXO article. As you can see, returns after bouts of high volatility were pretty good. The returns after 30 volatile days within a 40-day period were especially noteworthy.

It makes sense that volatility and returns are connected in this way. No investor should expect to get something for nothing, and viewed in that light, volatility is simply the price to be paid for decent results. The implication that investors who suffer through extended periods of volatility will eventually be rewarded with good returns is comforting!