In a new Weekly View published August 11, 2026, RiverFront Investment Group's writing team, led by Associate Portfolio Manager Dan Zolet, CFA, and including Global Equity CIO Adam Grossman, CFA, Chief Investment Strategist Chris Konstantinos, CFA, and Global Fixed Income CIO Kevin Nicholson, CFA, takes on a question that sits at the center of every balanced portfolio construction conversation: when do you use a stock, and when do you use an ETF? The answer, as the team frames it, is not a rivalry. It is a question of which tool fits the job.
Scalpels and Axes: The Precision vs. Breadth Trade-off
The first and perhaps most intuitive of the three analogies maps directly onto exposure breadth. When the objective is narrow and company-specific, individual stocks are the instrument of choice. When broad market participation is the goal, the ETF's built-in diversification wins. The team is explicit: for very narrow themes, "ones that affect only an individual company or a specific industry group," stocks are generally the more appropriate vehicle. The ETF, by contrast, performs "a bigger job in a portfolio, and a bigger job needs a bigger tool like an axe."
The logic is crisp and actionable. Using a scalpel to chop wood wastes time. Using an axe for surgery wastes precision. The mismatch between tool and task is where portfolios lose ground, not through catastrophic error but through chronic imprecision.
Spice and Risk Tolerance: Idiosyncratic Risk as a Dial, Not a Switch
The second analogy reframes how advisors should think about stock-specific or idiosyncratic risk. Rather than treating it as a hazard to be minimized, the team positions it as a variable to be calibrated. "Adding individual stocks to a portfolio," the team writes, is like "adding spices to a dish." There is no objectively correct amount. It depends on the risk tolerance of the investor.
For long-horizon portfolios, where risk tolerance is higher, individual stocks can be added more freely. For short-horizon portfolios, the tolerance for volatility is lower and position sizing becomes especially critical. The key insight here is that idiosyncratic risk is not inherently bad. For an investor who is skilled and systematic in bottom-up company analysis, that company-specific risk "can be additive to portfolio returns." The skill is in calibration, not avoidance.
Smoothies and Fruit Bowls: Tax-Loss Harvesting as a Structural Advantage
The third analogy is perhaps the most practically differentiated. ETFs blend their underlying holdings into a single price, netting winners and losers internally. The investor looking to realize a tax loss on a specific name cannot reach into the smoothie and pull out a single bruised piece of fruit. With individual stocks, the fruit bowl model applies: losses are visible, separable, and actionable. Even in a rising market, some holdings will be down, and "those positions can be sold and replaced with proxy securities to realize losses that may offset gains elsewhere in the portfolio." This flexibility, the team notes, is especially valuable for high-net-worth and high-tax-bracket investors.
Where the Business Cycle Changes the Calculus
RiverFront also connects tool selection to cycle positioning. Early in a recovery, stock correlations are high, which favors the broad exposure of an ETF. Later in a cycle, where the team believes markets are now heading, "leadership tends to narrow and dispersion widens." That widening dispersion rewards bottom-up research on both sides of the question. Knowing what sits inside an index becomes essential to judging whether an ETF actually delivers the exposure intended.
Five Key Takeaways for Advisors and Investors
1. Stocks and ETFs are not substitutes. They are purpose-built instruments, and the selection decision begins with identifying the job to be done.
2. Idiosyncratic risk is a dial to set, not a switch to avoid. Skilled bottom-up analysis can convert company-specific risk into a source of return.
3. Risk horizon governs spice tolerance. Short-horizon portfolios require more disciplined position sizing when individual stocks are included.
4. Tax-loss harvesting is structurally easier with individual stocks. The fruit bowl beats the smoothie when losses need to be realized selectively.
5. Business cycle stage matters. Late-cycle dispersion widens, tilting the advantage toward individual stock selection and rigorous index analysis.
RiverFront offers portfolios spanning the full spectrum from ETF-only to stock-only, and the balance between them, the team concludes, is something "we revisit as the cycle turns." The discipline is not in picking a side. It is in knowing which side fits the moment.
Footnote:
Zolet, Dan, et al. "Of Scalpels, Spice, and Smoothies." RiverFront Investment Group Weekly View, 11 Aug. 2026, https://www.riverfrontig.com/insights/stocks-and-etfs/.
