Diversification

Global Equity Momentum: A Craftsman’s Perspective – Executive Summary

Quantitative investment researchers often seek uniquely optimal parameterizations of their strategies amongst a broad “robust” region of parameter choices. However, this ignores a critically important feature of investing – Diversification. By diversifying across many equally legitimate parameter choices – an ensemble – investors may …

read more

Portfolio Optimization: Simple versus Optimal Methods

Our whitepaper “The Optimization Machine: A General Framework for Portfolio Choice” presented a logical framework for thinking about portfolio optimization given specific assumptions regarding expected relationships between risk and return. We explored the fundamental roots of common portfolio …

read more

Diversification – What Most Novice Investors Miss About Trend Following

The true benefit of trend following is only realized when investors take advantage of the extreme liquidity and diversity of global futures markets to trade a wide range of markets across all major asset categories. Our analysis shows that an investor would have achieved more than double the risk-adjusted performance of a median equity trend strategy by trading a diversified strategy across many diverse markets.

read more

Measuring Tactical Alpha, Part 1

Grinold linked investment alpha and Information Ratio to the breadth of independent active bets in an investment universe with his Fundamental Law of Active Management. Breadth is often misinterpreted as the number of eligible securities in a manager’s investment universe, but this ignores the impact of correlation.

read more

Forget active vs. passive. It’s all about factors

We just love a good debate, and there seems to be quite a heated debate at the moment about the relative utility of passive versus active investing. Perhaps this debate is as timeless as investment management itself, but a flurry of recent studies may have finally armed passive advocates with enough ammunition to settle the argument once and for all.

read more

Setting Expectations for Monthly Trading Systems

Systematic researchers overwhelmingly use monthly holding periods to test strategies. This is probably driven by the availability of long-term monthly total return data for a wide variety of indexes, where daily data is more scarce. This is fine to a point, but investors may not be aware of just how sensitive results might be to day-of-the-month effects which may not persist out of sample.

read more

One Factor to Rule Them All

Over the past few years there has been a loud and persistent chorus of complaints from market participants about the fact that markets are behaving like simple ‘risk on, risk off’ discounting mechanisms, where almost all of the risk seems to be emanating from a very small number of sources.

read more

Structural Diversification for All Seasons

Now that we are hip deep in our Dynamic Asset Allocation for Practitioners series (Parts I, II and III), it’s become evident that we may have skipped over some fundamental concepts in our rush to explore the more juicy material. This next series of posts is intended to lay the groundwork for how we think about the broader asset allocation problem.

read more