Investing Research Articles

In the brief August 2011 paper entitled “Paired-switching for Tactical Portfolio Allocation”, flagged by a subscriber, Akhilesh Maewal and Joel Bock investigate the efficiency of a simple momentum strategy applied to pairs of exchange-traded funds (ETF) with negative return correlations. Every 13 weeks (four times per year), they rank the performances of the two funds over… Keep Reading

Over the past few days, in the background, we have updated and rationalized “Simple Sector ETF Momentum Strategy” (update pending) and “Doing Momentum with Style (ETFs)” (update just published). Updated means adding data for December 2011. Rationalized means making the two analyses more similar in data processing and presentation approaches. We have also put together, and will soon… Keep Reading

How do individual investors adjust trading behaviors during bull and bear markets? Are any such adjustments advantageous? In their December 2011 paper entitled “Don’t Confuse Brains with a Bull Market: Attribution Bias, Market Condition, and Trading Behavior of Individual Investors”, Zhen Shi and Na Wang examine the trading behaviors of individual investors during different market conditions…. Keep Reading

…evidence from simple tests does not support a belief that investors/traders tend to exit the market before three-day weekends and re-enter after. There may be some tendency toward extra bullishness (bearishness) before (after) three-day weekends, but this tendency is not very consistent.

Are realized (actual historical) and implied volatilities the whole story for equity option valuation? In their December 2011 paper entitled “Fundamental Analysis and Option Returns”, Theodore Goodman, Monica Neamtiu and Frank Zhang investigate the extent to which the equity options market fails to recognize volatility of firm operations (accounting data) and whether any such failure is… Keep Reading

Can investors exploit idiosyncratic volatility exhibited by commodity futures? In their December 2011 paper entitled “Idiosyncratic Volatility Strategies in Commodity Futures Markets”, Adrian Fernancez-Perez, Ana-Maria Fuertes and Joelle Miffre investigate the usefulness of idiosyncratic volatility as a predictor of commodity futures returns. They define idiosyncratic volatility of commodity futures as return volatility not explained by contemporaneous variation in… Keep Reading

Are the relatively placid financial markets of the American Century evolving to a high-volatility regime in a more evenly competitive world? In his December 2011 paper entitled “Adaptive Markets and the New World Order”, Andrew Lo examines the implications of the Adaptive Markets Hypothesis (AMH), wherein “markets are not always efficient, but they are usually highly competitive… Keep Reading

A subscriber suggested applying a simple momentum trading strategy to a set of leveraged equity style (size, value-growth) exchanged-traded funds (ETF), including leveraged long and leveraged short counterparts to exploit both positive and negative markets. It seems plausible that leverage may make funds react quickly and strongly to business cycle shifts that affect style performance. However, the costs… Keep Reading

An update to the “What Works Best?” page makes the discussion more expansive (to address strategic asset allocation), shifts emphasis and adds references.

How many commodity sectors are relevant for portfolio diversification planning, and how do their behaviors differ? In their December 2011 paper entitled “How Many Commodity Sectors Are There, and How Do They Behave?”, Geetesh Bhardwaj and Adam Dunsby examine the statistical properties of commodity futures prices to discover natural sectors and investigate how returns for these… Keep Reading