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- Managing Return On Investment - A Strategy
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- Return on investment compounded by time equals wealth.
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- Consider an Individual Retirement Account (IRA) in the implementation of
- this concept. An annual $2000 investment earning an 8% return will
- build a $518,000 nest egg over a forty year period. The same annual
- investment, earning 12% will produce nearly triple that amount,
- $1,534,000, over the same period.
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- Value ($ thousands)
- Yrs Amount 2% 4% 6% 8% 10% 12% 14% 16%
- ┌─────┬─────────┬────────────────────────────────────────┐
- │ │ $20,000 │ │
- │ 20 │ + │ 79 103 138 185 249 337 457 620 │
- │ │ $2000/yr│ │
- ├─────┼─────────┼────────────────────────────────────────┤
- │ │ $20,000 │ │
- │ 30 │ + │ 117 177 273 428 668 1081 1732 2777 │
- │ │ $2000/yr│ │
- ├─────┼─────────┼────────────────────────────────────────┤
- │ │ │ │
- │ 40 │ $2000/yr│ 121 190 310 518 885 1534 2684 4720 │
- │ │ │ │
- └─────┴─────────┴────────────────────────────────────────┘
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- If one does not live ostentatiously, this difference may not seem
- important, as half a million dollars seems quite sufficient for
- retirement. Until one considers inflation. Adjusted downward to
- today's dollars, assuming 6% inflation, one's purchasing power would be
- reduced to $121,000 (8%-6%=2%) and $310,000 (12%-6%=6%), respectively.
- The importance of achieving the higher rate of return now becomes quite
- clear!
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- But how can an individual monitor his rate of return and thereby
- hopefully control its direction? One approach would be to invest solely
- in low-risk original issue fixed income instruments (e.g. bonds, CD's,
- and Treasury notes) with the intent to hold to maturity. One could then
- determine the approximate rate of return at any one time by computing a
- dollar weighted average of the coupon rates of all securities held.
- However this approach would be self-defeating because the rates of
- return one would inevitably receive would not exceed inflation by much
- over the long term.
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- The higher return on investment needed to retire confortably generally
- requires investment in equities and/or investment in fixed income
- instruments timed to take advantage of interest rate swings. This can
- be done directly or through mutual funds. However, since such
- investments do not have fixed rates of returns nor guaranteed redemption
- values, determining and tracking one's rate of return becomes important,
- yet is also more difficult.
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- In the case of mutual funds, one might try to rely upon the return
- rates stated by the fund managers or reported by tracking services.
- These rates, however, are for a specified time period, and generally
- will not represent the rates one has actually achieved. This is due to
- the differences in timing and amount of an investor's actual remittances
- and redemptions versus that assumed for the fund's reported rate.
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- The resolution to the timing issue is to compute return on investment
- (ROI) using the internal rate of return method. This calculational
- technique takes into account both the timing and dollar weighting of
- cash flows into and out of a portfolio as well as initial and ending
- portfolio values.
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- Because internal rate of return must be computed using iterative
- calculational method, for all practical purposes it must be calculated
- by computer. Techserve, Inc.'s family of portfolio managers, PFROI,
- CAPTOOL, and PFPRO, compute IRR-ROI as well as perform many other
- portfolio management functions (e.g. income reporting, capital gains
- reporting with three tax lot methods, portfolio tax planning, portfolio
- reports and price downloading from Dow Jones, Compuserve, Warner, GEnie,
- etc).
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- A typical strategy for an investor using PFROI or CAPTOOL would be to
- set a target rate of return pegged to an index such as the S&P 500 index
- or the consumer price index. For example, he may wish to exceed the S&P
- 500 index by 3% (because dividends not included in S&P 500), but also at
- a minimum exceed the CPI by at least 8% over the long run. Since PFROI
- and CAPTOOL can both track up to three indices at a time, the user would
- record the value of these indices each time a portfolio valuation is
- recorded and stored.
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- The investor then would have PFROI or CAPTOOL generate perform- ance
- reports to see how the portfolio has performed versus these indices over
- both the long and short run. Lagging performance versus the S&P 500
- would indicate that the investor is being too conservative in investment
- selections and should re-evaluate his holdings. Failure to stay ahead
- of the CPI growth rate by the target margin would indicate a need to
- rebalance the portfolio in favor of more inflation-proof holdings (e.g.
- real estate, REIT's).
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- Upon nearing retirement, an investor would then typically reduce his
- targeted return and re-deploy his assets accordingly in favor of safety.
- Investors who have successfully pursued their strategy, however, may
- find themselves with excess funds which they can commit to a separate
- aggressive portfolio in pursuit of additional growth in wealth during
- retirement.
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