Value Averaging: A Smarter Alternative to Dollar Cost Averaging?
How value averaging works, how it compares to DCA, and whether it produces better returns. Practical implementation guide for European ETF investors.
7 min czytaniaValue Averaging: A Smarter Alternative to Dollar Cost Averaging?
Value averaging (VA) was developed by Harvard professor Michael Edleson in 1988 as a systematic investing strategy that adapts contribution amounts based on portfolio performance. Unlike DCA, where you invest a fixed amount each period, VA adjusts your investment so that your portfolio value increases by a fixed amount each period.
The difference is subtle but important: DCA fixes the input (how much you invest). VA fixes the output (how much your portfolio should be worth). This means you invest more when prices are low and less, or even sell, when prices are high.
How value averaging works
Setting the value path
First, define your target portfolio growth. For example: your portfolio should increase by 1,000 PLN every month.
| Month | Target value | Portfolio value before | Required action |
|---|---|---|---|
| 1 | 1,000 PLN | 0 PLN | Invest 1,000 PLN |
| 2 | 2,000 PLN | 1,050 PLN (market rose) | Invest 950 PLN |
| 3 | 3,000 PLN | 1,900 PLN (market fell) | Invest 1,100 PLN |
| 4 | 4,000 PLN | 3,200 PLN (market rose) | Invest 800 PLN |
| 5 | 5,000 PLN | 3,800 PLN (market fell) | Invest 1,200 PLN |
| 6 | 6,000 PLN | 5,300 PLN (market fell) | Invest 700 PLN |
Compare this to DCA, where you would invest exactly 1,000 PLN each month regardless of portfolio performance.
The key mechanism
VA automatically adjusts for market conditions:
- Market drops: You invest more (buying more units at lower prices)
- Market rises: You invest less (buying fewer units at higher prices)
- Market surges: You might invest nothing or even sell (locking in gains)
This creates a stronger version of the "buy low" principle than DCA provides.
VA vs DCA: what the research shows
Academic evidence
Edleson's original research and subsequent studies show that value averaging produces a lower average cost per share than DCA in most market environments. The improvement is typically 0.5-2% per year in terms of internal rate of return.
However, the advantage varies by market conditions:
- Volatile, flat markets: VA shines. The adaptive buying/selling captures more of the volatility.
- Steadily rising markets: VA slightly underperforms DCA because it invests less as the market rises (missing some upside).
- Crash and recovery: VA is strongest here, investing heavily during the crash.
Practical comparison over 10 years
Simulating VA vs DCA on MSCI World (EUR) from 2016-2025, with a target of 500 EUR/month:
| Metric | DCA | Value Averaging |
|---|---|---|
| Total invested | 60,000 EUR | ~58,000-62,000 EUR (varies) |
| Final portfolio value | ~102,000 EUR | ~105,000 EUR |
| Internal rate of return | 10.2% | 10.8% |
| Average cost per unit | Higher | Lower |
| Max single contribution | 500 EUR | ~1,500 EUR |
| Months with zero/negative contribution | 0 | ~12 |
The return advantage is real but modest. VA required significantly larger cash reserves and more active management.
Advantages of value averaging
1. Lower average cost
By systematically buying more when prices are low, VA achieves a lower average cost per unit than DCA. The effect is strongest in volatile markets.
2. Enforced discipline
VA removes the emotional decision about how much to invest. The formula tells you exactly what to do each period. During crashes, when DCA investors might reduce contributions out of fear, VA explicitly tells you to invest more.
3. Natural profit-taking
In strongly rising markets, VA reduces contributions or even triggers sales. This is a form of automatic rebalancing that prevents the portfolio from becoming overweight in expensive assets.
Disadvantages of value averaging
1. Cash reserve requirement
VA requires a cash buffer for months when extra investment is needed. After a 20% market decline, VA might require a contribution 2-3x your normal amount. If you do not have the cash available, the strategy breaks down.
For a 1,000 PLN/month value path, maintain at least 3,000-5,000 PLN in a liquid reserve to handle above-average contribution months.
2. Complexity
DCA is trivially simple: set up an automatic monthly purchase for a fixed amount. VA requires:
- Checking your portfolio value monthly
- Calculating the required contribution
- Manually adjusting the purchase amount
- Managing a cash reserve
- Occasionally selling (triggering tax events)
3. Tax complications
If VA triggers sales in a taxable account, each sale is a taxable event. In Poland, the 19% capital gains tax applies to any profit realised. This can reduce or eliminate VA's theoretical return advantage.
In IKE or IKZE, where there is no capital gains tax on trades, this is not an issue.
4. Requires available capital
During market downturns, VA demands larger contributions. If you lose your job during a recession (when VA tells you to invest the most), you cannot follow the strategy. DCA's fixed amount is easier to budget for.
How to implement value averaging
Step 1: Define your value path
Decide on a monthly increment. Common approach: your monthly investment capacity, adjusted for expected market returns. If you plan to invest approximately 1,000 PLN/month and expect 8% annual returns, set your value path increment at approximately 1,000 PLN plus the expected monthly market return.
Step 2: Set up a cash reserve
Hold 3-5 months of extra contributions in a savings account. This covers periods when VA requires above-average investment.
Step 3: Monthly execution
On your chosen date each month:
- Check your portfolio's current value
- Compare to the target value for this month
- Calculate the difference
- Invest (or withdraw) the difference
- Document the transaction
Step 4: Adjust the value path annually
If your income changes or you want to accelerate, adjust the monthly increment. Do not adjust mid-year based on market conditions (that is timing, not value averaging).
Who should use value averaging?
VA is suitable for:
- Investors in IKE/IKZE (no tax on trades)
- People who enjoy active involvement in their investing process
- Those with variable income who can handle larger contributions some months
- Investors with a cash reserve beyond their emergency fund
Stick with DCA if:
- You prefer full automation
- You do not have a cash buffer beyond your emergency fund
- You invest in a taxable account (tax events from VA sales reduce the advantage)
- You find monthly calculations tedious
The pragmatic verdict
Value averaging is theoretically superior to DCA but practically more demanding. The 0.5-1% annual return advantage is real but comes at the cost of complexity, cash reserve requirements, and potential tax drag. For most investors, DCA's simplicity and automation make it the better choice. VA is a refinement for engaged investors who enjoy the process.
Track your VA contributions and portfolio value path in Freenance. Compare your actual portfolio growth against your value path target to see whether you are on track.
Related Articles
- Dollar Cost Averaging Guide — The simpler alternative
- Lump Sum vs DCA — Another investment deployment debate
- Rebalancing Portfolio Guide — Systematic portfolio maintenance
Want full control over your finances?
Try Freenance for free