Beta and Passive Risk Management
Another risk measure oriented to behavioral tendencies is a drawdown, which refers to any period during which an asset's return is negative relative to a previous high mark. In measuring drawdown, we attempt to address three things:

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Alpha and Active Risk Management
If the level of market or systematic risk were the only influencing factor, then a portfolio's return would always be equal to the beta-adjusted market return. Of course, this is not the case: Returns vary because of a number of factors unrelated to market risk. Investment managers who follow an active strategy take on other risks to achieve excess returns over the market's performance. Active strategies include tactics that leverage stock, sector or country selection, fundamental analysis, position sizing, and technical analysis.

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The Cost of Risk
In general, the more an active fund and its managers shows themselves able to generate alpha, the higher the fees they will tend to charge investors for exposure to those higher-alpha strategies. For a purely passive vehicle like an index fund or an exchange-traded fund (ETF), you're likely to pay one to 10 basis points (bps) in annual management fees, while for a high-octane hedge fund employing complex trading strategies involving high capital commitments and transaction costs, an investor would need to pay 200 basis points in annual fees, plus give back 20% of the profits to the manager.
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The difference in pricing between passive and active strategies (or beta risk and alpha risk respectively) encourages many investors to try and separate these risks (e.g. to pay lower fees for the beta risk assumed and concentrate their more expensive exposures to specifically defined alpha opportunities). This is popularly known as portable alpha, the idea that the alpha component of a total return is separate from the beta component.

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