Investor Success: Measure in Dollars, not (Per)Cents

A measuring tape measures a fan of $20 bills.

(Image credit: Getty Images)

The concept of “investing success,” as it often appears in the media, is a tangled web to me. Every time I read something about the topic, I can’t help but feel that the authors are confusing two very different efforts: investment success and investor success.

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Yes, this is nuanced, but yes, it matters. Too often, investment success is defined in either absolute or relative returns (which is another nuance for another time). While I understand why a portfolio manager would focus on higher returns, I’d argue that this shouldn’t be the benchmark for success for the typical investor. Instead, they should be focused on building the wealth they need to fulfill the objectives that matter most to them. Wealth is measured in dollars, not percents.

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Sure, better returns build more wealth faster, but higher returns are not essential to building wealth. Investing is a partnership between an investor and the markets, where an investor provides the capital and the markets provide the prospects for a return on that capital. Understanding this relationship introduces a most important point for building wealth — capital contributions.

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It May Be Unsexy, But This One Asset Class Is Critical to Any Financial Plan

A portfolio’s value can grow through both capital contributions and the return on capital, but only one part of this equation can grow wealth reliably: our capital contributions, or more generally, our savings. It’s our contribution to our own investment success and importantly, unlike the investment returns we seek, its benefits are both more certain and within our control.

Contributing More to Savings vs. Taking More Risk

As illustrated in the figure below, moving from a more conservative asset allocation (50% stocks/50% bonds) to a more aggressive one (80% stocks/20% bonds) tends to widen the range of expected outcomes. At any asset allocation choice, higher savings levels contribute to higher best, worst, and median expected outcomes, due to the higher levels of capital contributions.

What is often overlooked, however, is that higher levels of capital contributions allow investors to improve their expected outcomes not only relative to the same asset allocation, but also relative to a higher risk allocation. For example, for the 50% stocks/50% bonds portfolio, a 6% contribution rate provides a better range of total potential outcomes than a 4% savings rate for the same asset allocation and for the majority of expected outcomes in even riskier allocations.

Bar chart shows that conservative, moderate and aggressive portfolios do better with a higher contribution rate.

Higher returns are welcomed, but they are a less reliable source of asset growth and wealth creation.

A most extreme version of this scenario played itself out on the national stage when the Powerball lottery offered a $1 billion-plus jackpot. While the lottery gave a player a chance for a fabulous return on their $2 ticket, probability-wise, a player’s wealth would increase more certainly if they didn’t play the lottery at all (since they’re most likely to lose their whole “investment” in lottery tickets).

The Bottom Line for Investors

Investing involves tradeoffs, and an important part of the financial planning process is for an investor to define their willingness to forgo spending now to improve their prospects for building wealth that can provide for their future needs. This is critically important, as a higher savings rate provides a higher probability of investor success. This is due to the partial shift in responsibility for building wealth from the less certain returns from risky assets to a more certain stream of capital contributions.

In the end, if an investor is trying to maximize future wealth, we believe a marginally higher savings rate, rather than a substantially higher risk portfolio, will be more likely to lead to investor success.

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Disclaimer

This article was written by and presents the views of our contributing adviser, not the Kiplinger editorial staff. You can check adviser records with the SEC or with FINRA.

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Don Bennyhoff, CFA®, serves as the Chairman of the Investment Committee and Director of Investor Education at Liberty Wealth Advisors, a $1.7B RIA. An industry expert who spent over 22 years at The Vanguard Group, Don was a Founding Member of Vanguard’s Investment Strategy Group, and served as a Senior Investment Strategist.