Global

AgPa #44: Betting against Quant – Thematic Indices

Betting against Quant: Examining the Factor Exposures of Thematic Indexes (2021)
David Blitz
The Journal of Beta Investment Strategies Winter 2021, URL/SSRN

This week’s AGNOSTIC Paper examines a recent trend in the asset management industry: thematic indices. The sales pitch is simple. With a thematic index you can easily invest in the “next big things”. Artificial intelligence, aging population, e-sports and gaming, healthcare breakthroughs – just name your buzzword and you will find an investment product for it. This week’s paper is among the first that examine such thematic investments through the lens of the major factor premiums.

  • Thematic indices are more volatile and have higher betas than the overall market
  • Thematic indices tend to hold expensive, low-quality stocks with neutral momentum
  • There are still reasons why thematic indices exist

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AgPa #40: Size Effect – Fact and Fiction

Fact, Fiction, and the Size Effect (2018)
Ron Alquist, Ronen Israel, Tobias Moskowitz
The Journal of Portfolio Management Fall 2018, 45 (1) 34-61, URL/AQR

After examining several Facts and Fictions around factor investing in general, momentum, value, and low-risk, this week’s AGNOSTIC Paper tackles the final anomaly. The size effect received a lot of attention in both academia and the investment industry, probably because it is one of the oldest documented anomalies. In this final paper of their Fact and Fictions series, the authors examine some myths around it.

  • Fiction: Size is the strongest documented factor
  • Fact: The size effect weakened since its discovery
  • Fiction: The size effect is robust across different measures
  • Fact: The size effect is strongly related to the January effect
  • Fiction: Size also works in international equity markets
  • Fact: Size does not work within other asset classes
  • Fact: Most of the size effect are micro cap stocks
  • Fact: Size is difficult to implement in real-world portfolios
  • Fiction: The size effect is more than just a liquidity effect
  • Fiction: There are economic theories for the size effect
  • Fiction: Size works because other factors are stronger among small cap stocks
  • Fact: There are reasons to overweight small caps even without the size effect
  • Fact and Fiction: The size effect is stronger when controlling for other factors
  • Fact: Size receives a lot of attention despite weak evidence

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SA #10: ACWI Vs. VT – Vanguard Wins Again

ACWI Vs. VT: Vanguard Wins Again
January 30, 2023

Summary

  • In this article, I focus on the iShares MSCI ACWI ETF (ACWI) and how it compares to the Vanguard Total World Stock ETF (VT).
  • For the longest common period since June 2008, ACWI currently lags VT by about 14%-points or 41 basis points per year.
  • The performance gap mostly comes from different underlying indices. VT tracks an index with >9,400 stocks whereas ACWI ignores small caps and “only” holds about 2,800 positions.
  • ACWI is thus farther away from the academic idea of truly passive investing (holding a market-cap weighted portfolio of all investable stocks).
  • ACWI also comes with higher fees (0.32% TER vs. 0.07% for VT). For investors who seek passive exposure to global stock markets, VT therefore seems the better choice.


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AgPa #39: Low-Risk Investing – Fact and Fiction

Fact and Fiction about Low-Risk Investing (2020)
Ron Alquist, Andrea Frazzini, Antti Ilmanen, Lasse Heje Pedersen
The Journal of Portfolio Management Multi-Asset Special Issue 2020, 46 (6) 72-92, URL/AQR

After examining value and momentum, this week’s AGNOSTIC Paper examines some Fact and Fictions around defensive / low-risk investing. The defensive / low-risk factor captures various well-known effects like the low-volatility and Betting Against Beta effect, but also fundamental strategies like quality (a.k.a. the Quality Minus Junk factor).

  • Fact: Low-risk securities generate risk-adjusted outperformance
  • Fiction: The low-risk premium is weaker than other factors
  • Fact: Low-risk strategies worked out-of-sample
  • Fiction: Low-risk profits come from industry bets
  • Fact: Low-risk investing worked across geographies and asset classes
  • Fiction: Low-risk investing doesn’t work because the CAPM is dead
  • Fact: There is economic theory behind the low-risk premium
  • Fiction: Low-risk investing does not survive trading costs
  • Fact: Low-risk investing can lose money in bear markets
  • Fiction: Low-risk factors became too expensive

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SA #9: VT – As Passive As Practically Possible

VT: As Passive As Practically Possible
January 29, 2023

Summary

  • The Vanguard Total World Stock ETF is one of the leading ETFs to invest truly passively in global stock markets.
  • Passive investing means holding the market portfolio. Applied to equities, this is the market-cap weighted portfolio of all available stocks in the world. By definition, this goes beyond the US.
  • Since 2008, the US market has a tracking error of 6.6% compared to VT. The active share currently stands at 41% which makes a pure-US portfolio a quite active strategy.
  • Historically, active bets on the US were well rewarded. But it’s unclear if this pattern continues. The case for passive investing and global diversification is therefore as strong as ever.
  • VT tracks the FTSE Global All Cap Index and holds 9,473 stocks from 49 countries. With just 0.07% TER, it is thus a very efficient instrument for global passive investors.


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AgPa #38: Value Investing – Fact and Fiction

Fact, Fiction, and Value Investing (2015)
Clifford Asness, Andrea Frazzini, Ronen Israel, Tobias Moskowitz
The Journal of Portfolio Management Fall 2015, 42(1) 34-52, URL/AQR

After busting some myths around momentum, this week’s AGNOSTIC Paper is the sequel for value investing. The authors, the same AQR crew as last week, present several Facts and Fictions around value investing which is actually one of the oldest investment styles out there.

  • Fiction: Value investing requires concentrated portfolios
  • Fiction: Value has low turnover and is thus passive
  • Fact: Fundamental indexing is similar to systematic value investing
  • Fact: Profitability signals improve value investing
  • Fiction: Value is redundant in modern factor models
  • Fact: Value also works in other asset classes
  • Fact: Value is best measured by a composite of signals
  • Fact: Value is quite weak among large caps
  • Fiction: The value premium should disappear because there are no plausible explanations

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AgPa #37: Momentum Investing – Fact and Fiction

Fact, Fiction, and Momentum Investing (2014)
Clifford Asness, Andrea Frazzini, Ronen Israel, Tobias Moskowitz
The Journal of Portfolio Management Special 40th Anniversary Issue 2014, 40(5) 75-92, URL/AQR

After examining the general Facts and Fictions about factor investing, this week’s AGNOSTIC Paper examines momentum in more detail. Specifically, the authors combat 10 misleading myths about momentum…

  • Myth 1: Momentum returns are economically not meaningful
  • Myth 2: Long-only investors cannot capture momentum
  • Myth 3: Momentum is much stronger among small-caps
  • Myth 4: Momentum does not survive trading costs
  • Myth 5: Momentum produces a huge tax bill
  • Myth 6: Momentum is better as a screen than as a factor
  • Myth 7: Momentum returns should disappear in the future
  • Myth 8: Momentum is too volatile to rely on
  • Myth 9: Different momentum measures lead to different results
  • Myth 10: There is no theory behind momentum

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AgPa #36: Factor Investing – Fact and Fiction

Fact, Fiction, and Factor Investing (2023)
Michele Aghassi, Cliff Asness, Charles Fattouche, Tobias J. Moskowitz
The Journal of Portfolio Management Quantitative Special Issue 2023, URL

Whenever AQR writes about systematic investing, it’s (in my opinion) time to listen. This one is a very good overview about factor investing. Given that this is the intellectual basis of many things I do here on the website, it perfectly fits to the series.

  • Fiction: Factor investing is just data-mining
  • Fact: Factors are risky
  • Fiction: Factor diversification doesn’t work
  • Fact: Factors work in different market regimes
  • Fiction: Factors don’t work anymore
  • Fact: Factors were and are not crowded
  • Fiction: Everyone should (and can) invest in factors
  • Fact: Factor discipline beats factor timing
  • Fact: Sticking with factors is often difficult

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AgPa #33: World Cups and Stock Markets

Sports Sentiment and Stock Returns (2007)
Alex Edmans, Diego García and Øyvind Norli
The Journal of Finance 62(4), 1967-1998, URL

Given that this week’s AGNOSTIC Paper coincides with the final of the World Cup, I couldn’t resist the temptation. Below you can see a chart of the knockout stage of this year’s tournament. But since you are visiting a nerdy finance website, the focus is not on the results, but on the post-match stock market returns of the playing countries…


You may (understandably) say that this is some nice storytelling but not much more. However, I didn’t made this up to create a story but the idea of this analysis actually comes from this week’s AGNOSTIC paper…

  • Stock markets of losing countries tend to underperform after important matches
  • The effect most likely comes from bad mood after sport losses

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AgPa #31: Agnostic Fundamental Analysis (2/3)

Global market inefficiencies (2021)
Söhnke M. Bartram, Mark Grinblatt
Journal of Financial Economics 139(1), 234-259, URL/SSRN

The second AGNOSTIC Paper on agnostic fundamental analysis. This one is the international out-of-sample test where the authors apply their methodology to stock markets around the world. The results point in the same direction and suggest robust out-of-sample evidence…

  • Undervalued stocks outperformed overvalued stocks – also globally
  • Agnostic fundamental analysis yielded significant alpha – globally and against up to 80 factors
  • Agnostic fundamental analysis remains profitable after transaction costs
  • The degree of market efficiency differs around the world

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