Portfolio Optimization Software – Does it Really Matter?
Portfolio optimization software is a useful option used by many investment management experts to estimate the potential returns of an investment portfolio and allocate purchases in a better manner. But is it genuinely effective, and what characteristics matter more than others?
Modern portfolilio theory as stated simply by Markowitz recommends the best portfolio is the one which is situated upon the edge of the Efficient Frontier. That is certainly fine in principle, but can the normal investor truly build an efficient portfolio using limited funds and without incurring lots of transaction fees? Any improvement of a bond portfolio should take into account transaction fees to move from your base as well as “existing state” portfolio to the one that is situated upon your Efficient Frontier.
The most critical action that portfolio optimization software does will be to calculate the covariance matrix between assets or businesses. The covariance matrix is the heart of the assumption that diversification could produce volatility reduction benefits, andtherefore that an investment selection mix can be improved at all. Nevertheless, one weakness of this reliance on the covariance matrix may be the reality that correlations are generally transitory. In other words, correlations between instruments and businesses differ over time and are dependent on the lookback interval you select to calculate these correlations. This means that any optimization you do is only a snapshot. It also means that correlations may break down and shift anytime, meaning your current optimized bond portfolio as of last night may not be the most optimum one for the next day.
There are a number of ways to generate portfolio optimization software, including nonlinear, quadratic, and mixed integer coding. We won’t go into these kinds of techniques here, but reference should be made that for your typical small portfolio of an individual trader, the actual approach used does not matter. What’s important is the opportunity to shift allocations regularly with low purchase costs. In fact, portfolio optimization is an imperfect methodology.
Portfolio optimization software is available in all shapes and forms, from massively complex bank super portfolio simulators that handle each conceivable type of investment and derivative, to easy-to-use Excel spreadsheets generated for stocks only. Many of these systems work for their intent, which is to improve the diversification advantage as much as possible while keeping estimated returns to the maximum possible. In comparison to throwing darts at a stock list, buying your 5 top Favorites, or pyramiding earnings from the top performing investment, the simulations done in a good optimizer run really decrease risk. Though diversification advantage tends to fall significantly in the course of market crashes, it is still significantly greater than holding just one or two investments in related businesses or sectors that inherently move jointly and may correlate to 1 during market strains.
When selecting a great optimization application, these are the important things to look for: capacity to specify several input variables such as highest and minimal return, predicted discount rate, benchmark return, maximum and minimum volatility, capital spent, reinvestment of dividends and other cash flows, number of simulation runs, and other factors.
When you pick the tool with the appropriate capabilities, you will observe great advantages from your portfolio optimization software.
