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Return Stacking to Solve the 60/40 Dilemma

Everybody loves the 60/40 portfolio. And why not? It's worked really well for a long time, especially the past decade when both stocks (the 60) and bonds (the 40) went up. Yet investors fear the current inflationary environment could push both down. Enter “return stacking,” which attempts to so

Featured Speakers

Bloomberg HostRodrigo Gordillo Guest

Topics Discussed

Episode Summary

Executive Summary: The episode explains "return stacking," a framework for using leverage and capital-efficient ETF structures to preserve a traditional 60/40 portfolio while adding diversifying return streams on top. Corey Hofstein and Rodrigo Gordillo argue that investors can free up portfolio space with funds like NTSX and then allocate the leftover capital to strategies such as managed futures and global macro to improve resilience in inflationary, higher-correlation regimes.

Main Topics: Return stacking as a portfolio framework (Priority: 5/5): The guests define return stacking as using capital-efficient exposures so investors can keep their core 60/40 allocation while adding additional diversifying return sources on the freed-up capital. NTSX and the mechanics of leveraged 60/40 exposure (Priority: 5/5): They use WisdomTree’s NTSX as the clearest example: a fund that creates 1.5x exposure to a 60/40 profile by pairing S&P 500 exposure with Treasury futures collateralized by cash. Why 60/40 may need protection now (Priority: 5/5): The discussion centers on the risk that stocks and bonds could fall together in inflationary regimes, making traditional bond ballast less reliable than in the last decade. Stacking alternatives instead of more of the same (Priority: 4/5): Rather than adding more stocks or long-duration Treasuries, they argue the extra capital should be used for diversifiers like managed futures, CTAs, commodities, and systematic global macro. Advisor adoption and model portfolios (Priority: 4/5): They explain that advisors prefer modular model portfolios and manager diversification, making a multi-fund solution more practical than a single all-in-one ETF. Fees, leverage, and diversification (Priority: 4/5): The guests defend the idea that leverage is not inherently bad; what matters is whether it is diversified and whether the added return exceeds the cost and fee drag. Future regime expectations (Priority: 4/5): They argue that the next decade may look more like the 1970s or inflation-volatility environments than the low-rate, negatively correlated decade that favored stocks and bonds.

Key Arguments: 60/40 is still the core portfolio most investors want, but it may not be sufficient if stocks and bonds become positively correlated. Capital-efficient funds can free up roughly one-third of portfolio assets for additional exposures without abandoning the traditional allocation. Return stacking is broader than portable alpha because it can stack beta, alpha, or alternative return streams on top of a base portfolio. Managed futures and systematic macro are attractive add-ons because they have historically low correlation to equities and bonds, especially during inflation stress. Long-duration Treasuries alone do not solve inflation risk; they may worsen the exact vulnerability the 60/40 portfolio is exposed to. The approach is intended to be practical for advisors, who often need modular pieces and manager diversification rather than a single bundled solution. Leverage is acceptable when diversified and used to add offsetting exposures, but dangerous when concentrated in the same risk factor. The framework is meant to be evaluated relative to 60/40 outcomes, not against a simple equity benchmark like the S&P 500.

Data Points: NTSX exposure structure: 90% S&P 500 exposure + 60% Treasury futures exposure - Core example of a leveraged 60/40 ETF built with capital efficiency and cash collateral. Effective leverage multiple: 1.5x - The 60/40 portfolio is levered up to create the 90/60 exposure. Capital used for equivalent 60/40 exposure: 66% of capital - Investing 66 cents in the leveraged fund replicates a 100% allocation to traditional 60/40. Capital freed up: 33% of capital - The remaining portfolio space can be allocated to diversifiers or other strategies. Treasury futures ladder: 2-year, 5-year, 10-year, and 20+ year futures - The fund uses a blend of Treasury futures to create the bond exposure. Treasury futures allocation mix: 15% each - Each maturity bucket in the Treasury futures ladder is allocated equally. NTSX asset growth: about $1 billion - Mentioned as evidence that the concept has been commercially successful. NTSX performance since launch: about 73% - Used in discussion of how the fund has performed since its launch. NTSX expense ratio: 20 bps - Referenced as a relatively low fee for a capital-efficient allocation product. Index/model fee level: 1.29% ER (expense ratio) - Rodrigo notes the model can still outperform 60/40 after fees, transaction costs, and slippage. Year-to-date S&P 500 performance: down about 4% to 4.5% - Used to illustrate market weakness during the discussion. Year-to-date TLT performance: down about 6% - Example of bonds declining alongside equities. Year-to-date DBC performance: up 6% - Commodity exposure cited as a diversifier during inflation stress. Managed futures decade return: about 20% to 25% total return over the last decade - Used to show that CTAs underperformed equities but still provided positive returns. Managed futures volatility: about 8% to 12% - Compared with balanced portfolios, to show they can be diversified yet not extremely volatile. Stacked returns year-to-date: about 50 basis points - The index was said to be adding extra return on top of the 60/40 baseline.

Pivotal Quotes: "the future isn't scary. Not realizing its potential, however, could be." — Sponsor read (Invesco QQQ): Opening sponsor message setting a theme of embracing possibility and innovation. "How do you hedge against that and yet keep your 60-40? Because no one wants to let go of that." — Eric Balchunas: Frames the central problem: investors want protection without abandoning the familiar 60/40 structure. "you now have $33 that's on the sidelines" — Rodrigo Gordillo: Explains the practical result of capital efficiency: freeing up roughly one-third of the portfolio for additional strategies.

Implications: The episode argues that advisors may soon adopt model-based portfolios that keep 60/40 exposure but add diversifiers like CTAs and macro. If inflation and stock-bond correlation stay elevated, return stacking could become a mainstream portfolio design tool.

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