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Over 25 years of applied quantitative innovation

Quant research 2014

Risk Parity versus Mean-Variance: It’s all in the Views

19-12-2014 | Research | Winfried Hallerbach, PhD

The key problem in portfolio optimization is not per se the optimization itself, but the specification of the inputs, notably the views on ex-ante risk premia.

Short-term stock selection model boosts performance Enhanced Indexing

11-12-2014 | Research | Michael Strating, Weili Zhou, CFA, Wilma de Groot, CFA

Robeco Enhanced Indexing invests in global developed markets equities, and has a low tracking error against its benchmark, the MSCI World index. In recent years, performance has been strong. In this article we focus on one element that distinguishes Robeco’s strategy from those of others: our short-term stock selection model (SHOT).

Low-volatility investing: Expect the unexpected

06-11-2014 | Research | David Blitz, PhD, Pim van Vliet, PhD

Low-volatility stocks are known to lag in rising markets and lose less in falling markets. On average this is true, but is it always the case? Examining the historical evidence we find that unlikely scenarios – both positive and negative - do occur once in a while. Low-volatility investors should therefore not only focus on averages, but consider a broader range of possible outcomes.

Core and Active Quant Emerging Markets: the importance of research

29-10-2014 | Research | Wilma de Groot, CFA

Robeco portfolio manager Wilma de Groot explains the importance of research and discusses two major new projects in her department. “ESG inclusion can be seen as a form of risk reduction”, she says.

What drives the value premium?

16-10-2014 | Research | David Blitz, PhD

The empirical evidence for the presence of a value premium in stock markets is overwhelming. But why does this phenomenon exist? A new white paper examines a popular explanation.

When factors disagree

30-09-2014 | Research | Bart Van der Grient, David Blitz, PhD, Pim van Vliet, PhD

Generic strategies designed to harvest a certain factor premium regularly conflict with other factor premiums. We find that the premiums associated with these strategies tend to shrink, sometimes even to zero, in these periods of factor disagreement. But enhanced factor strategies avoid stocks that are unattractive on other established factors and continue to deliver when generic factor strategies struggle.

Efficient factor investing strategies - A ‘Sharper’ approach to harvesting factor premiums

27-08-2014 | Research | David Blitz, PhD, Joop Huij, PhD

There is a shift towards allocating to the factor premiums momentum, value and low volatility. However, since common factor indexes are a suboptimal way to harvest factor premiums, this paper shows the improved results of a more sophisticated approach. Factor strategies developed by Robeco lead to higher returns, while lowering the risks, resulting in higher Sharpe ratios.

Duration model performs well in times of large yield changes

24-07-2014 | Research | Johan Duyvesteyn, PhD, CFA, Martin Martens, PhD, Olaf Penninga

Robeco’s quantitative duration model drives the performance of quant duration solutions such as Robeco Lux-o-rente and Robeco Flex-o-rente. We monitor the performance of the model and regularly investigate in which circumstances the model performs well and which conditions are more challenging.

15 Years of Quantitative Emerging Markets Research

13-06-2014 | Research | Wilma de Groot, CFA

In 1999, fifteen years ago, Robeco found that quantitative stock selection techniques known to be effective in developed markets are also able to deliver superior investment results in emerging markets. What are the biggest takeaways from the research done and how does the model work in practice?

How Smart is 'Smart Beta' Investing?

05-06-2014 | Research | David Blitz, PhD

Investors increasingly embrace “smart beta” investing, by which we mean passively following an index in which stock weights are not proportional to their market capitalizations, but based on some alternative weighting scheme. Examples include fundamentally-weighted indices and minimum-volatility indices. In this whitepaper we first take a critical look at the pros and cons of smart beta investing in general. After this we successively discuss the most popular types of smart indices that have been introduced in recent years.

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