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Momentum factor

Stocks tend to maintain recent price trends in the future, and the momentum strategy takes advantage of this phenomenon. When using a momentum strategy, it is important to be aware of the risk of trend reversals and of how that risk can be mitigated.

The momentum premium is one of the largest factor premiums, but it is hard to capture because of two practical problems. First, a substantial drawdown can occur if there is a trend break like a market reversal, as the strategy will select equities with high market sensitivity in a bull market. Second, the group of stocks with the strongest trends changes all the time, causing high turnover in the portfolio. The transaction costs that this turnover generates eat into the momentum premium.

Figure: Improved risk-return ratio with Robeco's Momentum factor approach
Source: Robeco, Quantitative Research, 2014.

Unlike ‘traditional’ momentum based on total returns, Robeco calculates ‘residual’ momentum, adjusted for market risk in particular. This avoids the unrewarded risks of a traditional momentum strategy. Furthermore, smart portfolio construction rules ensure only necessary trades are done and transaction costs are minimised.

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Disclaimer

This page is intended for US prospects, clients and investors only and includes information about the capabilities, staffing and history of RIAM US and its participating affiliates, which may include information on strategies not yet available in the US. SEC regulations are applicable only to clients, prospects and investors of RIAM US. Robeco BV, Robeco HK and Robeco SH are considered a “participating affiliate” of RIAM US and some of their employees are “associated persons” of RIAM US as per relevant SEC no-action guidance. Employees identified as associated persons of RIAM US perform activities directly or indirectly related to the investment advisory services provided by RIAM US. In those situations, these individuals are deemed to be acting on behalf of IUAM, a US SEC registered investment adviser.

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