Podcast Summary: How I Invest with David Weisburd

Episode 294: Endowment Model vs Total Portfolio Approach – The Real Trade-Offs

Originally aired: January 30, 2026

Episode Overview

This episode dives deep into the contrasting philosophies of the Endowment Model and the Total Portfolio Approach (TPA) in institutional investing. David Weisburd speaks with a principal from New Republic Partners, a multifamily office, to dissect how these frameworks guide asset allocation, risk management, and portfolio construction for families, endowments, and foundations. The discussion also covers the structural benefits and pitfalls for smaller family offices, the misunderstood role of diversifying assets in a portfolio, and timeless investing lessons learned from giants in the field.

Key Discussion Points & Insights

1. New Republic Partners – Origins and Approach

[00:07–01:23]

• New Republic Partners is a multifamily office founded to provide customized, conflict-free, institutional-grade investing to families in the Southeast.
• The firm boasts $2.5 billion in AUM, with 27 employees. About two-thirds of capital is discretionary.
• Quote:

  "We started that multifamily office because there was a shared appreciation of the advantages of an MFO... customization, minimize conflicts of interest and also attract some top tier professionals..." (C, 00:07)

2. Open Architecture & Minimizing Conflicts

[01:23–02:56]

• New Republic Partners' investment platform is “open architecture”—no proprietary products or in-house managers are pushed on clients.
• Clients can bring external managers/funds for diligence. The search for investments is “completely open scope.”
• Quote:

  "We are seeking, searching for the best managers and to get the best execution and talent in a particular asset class or sub asset class." (C, 01:30)

3. Portfolio Construction for Families & Foundations

[03:04–04:59]

• Each portfolio is built to match a family’s risk tolerance, liquidity, income, and time horizon needs.
• Three key portfolio buckets: Growth assets (global equities, PE/VC, hedged equity), Income assets (fixed income, private credit), Diversification assets (real assets, absolute return hedge funds).
• Illustrative Allocation:
  • ~65% Growth
  • ~20% Income
  • ~15% Diversification (with private allocations at 15–20% overall)
• Quote:

  "If you've met one family office, you've met one family office, all can look very different based on...their journey." (C, 03:04)

4. Common Mistakes of Family Offices

[04:59–07:03, 08:28–09:08]

• Mischaracterizing assets—assuming fixed income always acts as a diversifier is flawed given recent market history (stocks/bonds both fell in 2022).
• Critical to understand true role/purpose of each asset in the portfolio.
• Quote:

  "One aspect that people have always tended to lean on...that fixed income...can act like a diversifier...I think the argument that we've been pressing is...think about that fixed income...a bit differently..." (C, 05:07)

5. The Myth and Reality of Diversifiers (Hedge Funds & More)

[09:08–11:01]

• Not all hedge funds serve the same purpose—important to separate hedged equity managers (with beta) from absolute return strategies (low correlation).
• Optimal mix includes multi-strat, distressed, market neutral, macro, etc.—seek genuinely low correlations.
• Quote:

  "Oftentimes as a grouping, people will just bunch them all together...But there's a different purpose." (C, 09:08)

6. Asset Labels vs. Asset Purpose

[11:01–12:58]

• The nature of a fund’s "wrapper" (hedge fund, index, etc.) matters less than what the strategy delivers in growth, income, or diversification.
• The focus should always be on the “why” behind owning an asset and how it competes with alternatives.

7. Endowment Model vs. Total Portfolio Approach (TPA)

[11:35–15:29, 22:23–24:23]

• Endowment Model: Strategic, policy-driven. Likes governance, structure, diversification, but can become rigid.
• Total Portfolio Approach: Favored by some for flexibility, crossing asset-class boundaries, but risks loss of discipline and over-concentration.
• Blend of both can be ideal: retain discipline while enabling CIO discretion.
• Quote:

  "I certainly have come up in the school from the endowment model and still lean in that strategic policy portfolio way of management. But I think...there is a bridge between those two..." (C, 11:35)

• Discussed the pitfalls of “market timing,” especially in private markets—prefer modulating allocations rather than going all-in or all-out.
• Quote:

  "To go from 100 to zero in a particular asset class is not one. We're trying to again educate clients so that they...can hold through rather than trying to time." (C, 25:10)

8. Rebalancing, Behavioral Mistakes, and True Diversification

[13:18–16:51]

• Traditional diversification (equities + bonds) may fail in correlated drawdowns.
• Absolute return strategies are now essential “ballast” assets.
• Diversification is about maximizing the ability to act (rebalance/buy the dip) and protecting against psychological mistakes in crises.
• Quote:

  "That's core to how we measure risk appetite for a family...We want to calibrate the portfolio such that it matches up with that risk tolerance so that we can be opportunistic when drawdown periods occur..." (C, 15:29)

9. Co-Investments in Private Markets

[17:46–19:37]

• Roughly a third of private allocation goes to directs/co-invests for cost, control, and relationship benefits.
• To avoid adverse selection, managers are deeply vetted; principals with GP experience critically assess opportunities.

10. Family Offices Under $250M: The Argument for Platform Scale

[19:37–22:23]

• Sub-$250M family offices face access, cost, governance, and risk hurdles.
• Joining a larger platform provides better deal flow, infrastructure, risk controls, and allows the family to focus on broader life priorities.
• Quote:

  "Joining a larger platform...isn't about giving up control. It's about gaining access, stability and expertise that would be nearly impossible to replicate independently." (C, 21:47)

11. Lessons Learned from Institutional Investing

[26:27–31:25]

• From Davidson Endowment: The “network effect” in venture is a powerful self-reinforcing advantage (e.g., top GPs attract top entrepreneurs).
  • Quote:

    "...a self fulfilling cycle...those nexus points, those GPs, they attracted some of the brightest and best entrepreneurs in that vertical." (C, 26:33)

• From UNC Endowment: The iconic Endowment Model, as taught by David Swensen, emphasizes asset allocation, liquidity premium, genuine diversification, active management in inefficient markets, and the primacy of manager selection.
• Biggest Personal Lesson: Stay humble—avoid mistaking conviction for hubris. Be aware of changing facts and adapt.
  • Quote:

    "If you're humble, you're more apt to see when those facts change, and that can help you avoid some investing pitfalls. But I'd also tell my younger self that in the end, markets will humble you." (C, 30:17)

Notable Quotes & Memorable Moments

• On Asset Bucketing:

  “Putting [assets] into growth, income and diversifiers...forces you to say why am I in this asset?” (B, 11:01)

• On Marketing Timing:

  “The hall of fame of investors that are market timers...there's no one in it.” (C, 24:39)

• On Family Office Scale:

  “Running a family office is expensive...with limited AUM, it's hard to justify best in class technology...A larger platform spreads those costs across many families.” (C, 20:21)

• Career Advice:

  "Be humble, as investing is a humbling business...if you're not humble about what you know and don't know, or what you think you know, that really ain't so..." (C, 30:17)

Timestamps for Key Segments

• 00:07 – What is New Republic Partners?
• 01:23 – Open architecture and conflicts of interest
• 03:04 – Portfolio construction process, case study
• 05:07 – Common multifamily office mistakes & asset mislabeling
• 09:08 – Hedge funds & the true role of diversifiers
• 11:35 – Endowment Model vs. Total Portfolio Approach (TPA)
• 13:18 – Asset correlations & dangers of “fake diversification”
• 15:29 – Measuring and managing risk appetite & drawdown readiness
• 17:46 – Co-investment philosophy & process
• 19:37 – Why sub-$250M families should join larger platforms
• 22:23 – Endowment vs. TPA framework: strengths, weaknesses, and risk of timing asset classes
• 26:27 – Davidson Endowment: Network effects in venture capital
• 28:20 – UNC Endowment: Timeless endowment model tenets
• 30:17 – Long-term career advice: humility and adaptability

Conclusion

This episode delivers a nuanced exploration of portfolio construction philosophies and the real-world tradeoffs for families and institutions in today’s market. The guest distills the enduring wisdom—and evolving challenges—of the endowment model while advocating for adaptability, humility, and a keen understanding of why each asset has a place in the portfolio. A must-listen for anyone working in wealth management or institutional investing.