What Is the Portable Alpha Strategy?
The portable alpha strategy focuses on investing in stocks or other assets that have demonstrated little or no correlation with the markets. To do this, investors separate alpha from beta by investing in securities that are not in the 澳洲幸运5官方开奖结果体彩网:market index from which their beta is derived.
Alpha is the return achieved over and above the market return (or beta) without taking on more risk. Thus, portable alpha is a str♊ategy that involves investing a portion of assets in assets that have little to no correlation with the market.
Key Takeaways
- A stock or other asset's alpha is its return in excess of a benchmark against which it can be compared.
- Its beta is a measure of its volatility over time in comparison with the same benchmark.
- Portable alpha is a strategy designed to add alpha returns without risking the overall beta of the portfolio.
Understanding Portable Alpha
First, a couple of definitions:
- The alpha of a stock or other asset is its historic return above a wider market index or another industry benchmark that it is compared with.
- The beta of an asset is its volatility or its riskiness compared to a benchmark. It measures the extent to which the price of the asset moves with the market, not independently.
Selecting assets for their beta is a key strategy in portfolio management. These are sometimes referred to as passive returns. A𝓡 stock or fund is selected because its beta indicates it will match the return of the benchmark.
Using Beta
A stock or fund with a beta of 1.0 tends to move up and down with the movement of the market. A fund with a bไeta of 0.5 moves up and down only half as much as the market. One with a beta of 1.5 moves up and down 1🅰.5 times as much as the market.
Important
Portable alpha might be achieved by devoting one portion of a portfolio to steady la♍rge-𒀰cap stocks and another portion to more volatile small-cap stocks.
Therefore, beta can be said to represent passive returns or returns that result from tꦚhe movement of the market as a whole.
Using Alpha
A second type of portfolio returns is known as idiosyncratic. These are returns that are achieved by selection ꧟according to alpha.꧋
That is, the stocks or funds are selected becau꧅se they have a history of outperforming the benchmark. This process is active management, not passive management.
Using Portable Alpha
An investor can achieve portable alpha by investing in securities that are not correlated with the beta. Typically, the🌱 goal with portable alpha is to achieve a higher overall return without endangering the beta, or volatility, of the entire portfolio.
A portable alpha strategy might involve investing one portion of the portfolio in 澳洲幸运5官方开奖结果体彩网:large-cap stocks to get the beta or market return, and another portion in small-cap equitieౠs to achieve alpha.
Since small-cap stocks are more volatile than large-cap sto�♈�cks, the overall beta will then be higher.
To neutralize this higher beta, the small-cap strategy could be hedged with futures on a small-cap index, thereby raising the beta of the overall portfo🍒lio to its original level.
What Does Alpha Mean in Investing?
In investing, the alpha of an asset represents its abnormal or excess returns, adjusted for risk, when that asset is compared to a benchmark or index. Active investors seek assets with a high alpha in order to generate higher-than-market returns. Alpha is usually expressed as a percentage, representing the difference between the asset's returns and the returns of the benchmark.
What Does Beta Mean in Investing?
In investing, beta re♛presents the volatility or risk of that asset when compared to the wider market. Beta is expressed as a coefficient: a beta greater than 1.0 means that the asset is riskier than the S&P 500, and a beta less th💧an 1.0 means that it has less risk than the wider market. The S&P 500 has a beta of exactly 1.0.
How Do You Calculate the Beta of a Portfolio?
The beta of a portfolio is calculated by averaging together the beta of each stock in the portfolio, weighted by its share of the total portfolio.
The Bottom Line
A portable alpha strategy seeks to capitalize on the excess returns of certain assets, without adding to the risk of the overall portfolio. In a portable alpha strategy, portfolio managers seek to replicate the beta of a target index, and then increase their gains by adding certain high-alpha securities.