Key points
01.
Unlock portfolio capital
02.
Fixing the alpha-beta mismatch
03.
Navigating a higher rate environment in fixed income
What is portable alpha?
The objective of a portable alpha strategy is to generate returns in excess of a specific market index such as the S&P 500 Index or Bloomberg U.S. Aggregate Bond Index. Portable alpha strategies consist of a target index exposure, or “beta” component, and a separate source of excess return opportunities or “alpha” component.
Portable alpha strategies seek to effectively separate the returns of a target index (beta) and the returns of an alpha-seeking manager (alpha). This separation potentially allows the returns of the alpha component to be “ported” on top of the investor’s desired market index exposure.
How Portable Alpha works:
There are three key steps to implementing a portable alpha strategy. First, the investor chooses a target index for their beta exposure. Second, the target index is replicated using market-linked instruments. This part of the portfolio requires a small amount of cash in the form of a margin requirement to achieve the exposure, but also comes with a cash financing cost. As a result, there is excess cash to allocate capital. The final step is to invest the remaining funds in an alpha seeking source and a cash reserve. Thus, the return of the portable alpha framework is determined by how much capital is allocated to the alpha source, how much return it generates, the return of the index exposure, and the cost to finance the index exposure.
Understanding expected returns
Let’s assume that 100% of the target index exposure is created using market-linked instruments at a financing cost of 4.0%. With 40% of the index exposure backed by physical cash (20% margin and 20% reserve), it can be reinvested in a cash rate to match the financing cost rate. Thus, the remaining 60% of exposure comes at a cost of 2.4%.
As 60% of the overall portfolio is invested with the alpha-seeking manager, the investor would receive 60% of the alpha generated by the manager. If the alpha-seeking manager was targeting a return of 10%, then the overall investment would receive the expected return of the target index and an additional 6% from the alpha source, minus 2.4% for the cash financing cost.
Overall, in this hypothetical example, this return occurred with the assumption that the targeted return alpha and index returns would equate to a return to the investor equal to the market index return plus 3.6%, with the excess return driven by the alpha-seeking portfolio's return over the financing cost.
Why use a portable alpha strategy?
One key advantage of a portable alpha framework is investors can untether a portfolio’s active risk budget from the beta allocation without disturbing it. Importantly, it unlocks portfolio capital that can be used in seeking excess returns in areas of the global financial markets that have more potential to generate alpha. For investors, building the optimal asset allocation for the market return, or “beta” component, of your portfolio is quite different than the optimal capital allocation seeking excess returns, or “alpha” component, of your portfolio.
In equity portfolios, we find that market capitalization is a common driver of portfolio asset allocation weights, but it may not be an optimal starting point for active risk allocation. In fixed income portfolios, we find that most managers have low active risk budgets and derive the majority of their active return from tilts into credit-sensitive securities.
A portable alpha framework can help solve these issues by constructing a more diversified portfolio.
Portable alpha explained
In the following sections, we will look at two case studies that show how a portable alpha strategy can pursue meaningful and diversified excess returns in both the equity and fixed income portion of an asset allocation.
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SECTION 1
Equities: Portable alpha for broader more robust alpha opportunities
What are the potential benefits of a portable alpha framework in equities? Broader opportunities to generate alpha in the largest parts of the portfolio where meaningful outperformance may be difficult.
2 minute read
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SECTION 2
Fixed Income: Portable alpha for idiosyncratic return streams
What are the potential benefits of a portable alpha framework in core fixed income? The ability to increase active returns and at the same time seek idiosyncratic, equity diversifying return streams.
2 minute read
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SECTION 3
Perspectives on portfolio implementation
Portable alpha can help institutional investors enhance returns within core allocations while maintaining liquidity oversight. Implementation options include building, buying, or outsourcing the solution.
4 minute read
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Conclusion
We believe the structural advantage of the portable alpha strategy can translate to better return potential. During this time when investors are struggling with greater uncertainty in financial markets, portable alpha strategies can represent a way for investors to increase the overall level of potential return from their core allocations. Equally important, portable alpha can help preserve the diversifying role of bonds by seeking more idiosyncratic sources of return that are less correlated with credit risk.
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