Guest Posts

Trend-Following Filters – Part 8

This article describes digital filters derived from time series regression models that can be used as technical analysis tools. The filters are analyzed from a digital signal processing (DSP) frequency domain perspective to illustrate their properties. Example charts of the filters applied to the S&P 500 index are also included.

Overvalued or New Paradigm?

Without question the topic of greatest debate among investors, including investment professionals, and financial economists, is whether or not the market, and the technology sector in particular, is overvalued. There are two very strong conflicting views regarding not only the current valuation of technology stocks, but also the valuation of the entire asset class of large-cap growth stocks. One side, I’ll call the “new paradigm” or “it’s different this time” school. The other side, I’ll call “the been there, done that” school. Its theme is those that don’t learn from the past are doomed to repeat the same mistakes. No two sides could have more different viewpoints. To understand each side, let’s imagine a dialogue between the two schools.

Factors and Taxes

As a result of the trading required to capture the premiums that drive factor strategies investors may face significant tax liabilities. The challenge for the [...]

The Impact of Amortizing Volatility across Private Investments

The amortization of volatility should be of concern for private capital asset classes. In order to properly budget for beta risks, it is critical that investors in private assets understand the amount of systemic (beta) risk that will “wash” into their private portfolios.

U.S. Companies Have Outperformed Japanese Companies, or Have They?

While both the S&P 500 and the Nikkei indices have recently hit all-time highs, the valuation and balance sheet data we have reviewed indicate that the downside risks in Japanese stocks appear to be far less than the risks in U.S. stocks. Evidence such as this helps explain why legendary investor Warren Buffett has been buying Japanese stocks.

Social Media: The Value of Seeking Alpha’s Recommendations

The finding that the recommendations from SA articles resulted in statistically significant risk-adjusted alphas (returns unexplained by conventional academic models using factors such as the market, size, value, momentum, profitability, and quality for equity portfolios) is surprising given that the empirical evidence shows how difficult it is for institutional investors such as mutual funds to show outperformance beyond the randomly expected (as can be seen in the annual SPIVA Scorecards) because of market efficiency.

Social Media, Analyst Behavior and Market Efficiency

Hibbert, Kang, Kumar and Mishra provided us with yet another explanation: social media is providing analysts with information that reduces their forecasting errors. The result has been an increase in market efficiency, leading to a reduction in the PEAD anomaly. The bottom line is that the ability to generate alpha continues to be under assault—trying to outperform the market by stock selection is becoming even more of a loser’s game.  

Betting on a Short Squeeze as Investment Strategy

Short squeezes are often associated with a large positive jump in the price of a stock. Filippou, Garcia-Ares, and Zapatero demonstrated that skewness-seeking investors try to identify securities that could experience a short squeeze in the near future and are willing to pay a premium for them. That results in an overvaluation of the options and, on average, negative returns. Investors are best served to avoid investments with lottery-like distributions. One way to do that is to turn a blind eye to social media sites like Robinhood and Reddit so you don’t get caught up in the hype and excitement. That’s another example of why retail investors are called “dumb money.” Forewarned is forearmed.

Trend to Passive Investing Negatively Affecting Active Funds

While the evidence makes clear that active management is a loser’s game (one that it is possible to win but so unlikely you should not try), we don’t want active managers to disappear. Hope should continue to triumph over evidence, wisdom, and experience because active managers help eliminate market anomalies and inefficiencies created by the misbehavior of investors (such as noise traders). That helps to ensure that capital is allocated efficiently.

Fifty Shades of Grey Swans: Timeless Risks with a Modern Twist

The world is complex and ever-changing; news travels at warp speed, events happen fast, and popular narratives can distract and mislead us. Many risks important for our portfolios are new, hidden, or nuanced in some underappreciated way—and likely to be misunderstood and mispriced in the markets. Other risks can hide in plain sight. Good risk management can be described as a balancing act that employs the first principles of investing, lessons from history, behavioral psychology, a little math, and even our imagination in service of our objective: to detect and defend against the risks we can foresee and fortify our portfolios against those we cannot. In short: we need informed creativity, not calculation.

The Financial Distress Puzzle

The empirical research findings demonstrate that the return premium generated by being long low-distress risk stocks and short high-distress risk stocks is persistent and that the capital asset pricing model (CAPM) and the Fama-French three-factor models cannot explain it. Hence, we have the distress puzzle, or anomaly.

Is now a good time to buy bonds?

As pundits wrestle over the cause, implications, and sustainability of the recent massive moves in interest rates, I’ll instead delve into the two terms most often blamed for these shifts in rates: R-star and the Term Structure Premium. Unfortunately, what most want—a measure of them—is unknowable. But we can benefit from understanding the theories and models behind these terms. We can glean guidance on what we need, namely a better understanding of the risks and rewards of buying longer-maturing bonds at current rate levels. I contend that now is a good time to secure future cash flows by buying bonds, although determining the precise amount to invest remains a challenge.

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