Resilient Portfolio Construction

Build portfolios that survive what you can't predict.

Organize holdings by true economic exposure. Model how correlations change in crises. Simulate outcomes across regimes—recession, inflation, recovery—before committing capital.

The Problem

Your portfolio tools are built on a flawed assumption.

Most portfolio analysis calculates correlations from the past five years of calm markets, runs Monte Carlo with those fixed numbers, and calls it diversified. That's not analysis. It's wishful thinking.

The Research: Correlation Breakdown

Academic research has documented a troubling pattern: asset correlations spike during market stress—precisely when diversification matters most.

Forbes & Rigobon (2002)

Correlations increase significantly during crises due to volatility amplification

Longin & Solnik (2001)

Stock correlations increase in bear markets; diversification benefits decline

Ang & Chen (2002)

Downside correlations exceed upside correlations for most asset pairs

Campbell et al. (2002)

Stock-bond correlation turns negative in crashes (flight to quality)

What this means: Your "diversified" portfolio may be concentrated in a crisis. Correlations calculated from calm markets will underestimate tail risk.

"Diversification works until you need it to work."

The Solution

Think in economic exposures, not pie charts.

A "sleeve" is a grouping based on economic exposure—how a set of holdings responds to growth, inflation, and risk sentiment.

The Problem with Asset Classes

  • • "Stocks" includes both defensive utilities and speculative tech
  • • "Bonds" includes both safe Treasuries and risky high-yield
  • • "Alternatives" is a meaningless catch-all

The Sleeve Solution

  • • Group by economic drivers
  • • US Growth ≠ US Value (different regimes)
  • • Treasuries ≠ High Yield (different risks)
  • • See your true concentration

Harvest Volatility Through Rebalancing

Here's a powerful secret: when you organize into truly uncorrelated sleeves and rebalance systematically, you can actually harvest extra returns from volatility.

The Rebalancing Bonus

When sleeves diverge, rebalancing forces you to "sell high, buy low" automatically. Over time, this generates incremental returns that a static portfolio would miss.

Why Sleeves Matter

Traditional asset classes often move together. Sleeves based on true economic exposure are more likely to be genuinely uncorrelated—which means more volatility to harvest.

Academic foundation: This concept is rooted in research on the "rebalancing premium" (Bernstein, Booth & Fama) and information theory (Shannon's Demon). The less correlated your sleeves, the greater the harvesting opportunity.

Risk Premium Sleeves

Academic research identifies distinct risk premiums you can harvest independently

Equity Premium

Compensation for bearing market risk

Term Premium

Duration risk in bonds

Credit Premium

Default risk compensation

Volatility Premium

Selling insurance (short vol)

Carry Harvesting

Yield differentials across assets

Illiquidity Premium

Compensation for lock-up

Value Factor

Cheap vs. expensive (Fama-French)

Momentum Factor

Trend continuation (Jegadeesh-Titman)

Economic Sensitivity Sleeves

Group by what macro factor drives returns—not by what the asset "is"

Growth Beta

Moves with GDP (cyclicals, EM)

Inflation Beta

Moves with CPI (commodities, TIPS)

Rate Beta

Sensitive to Fed policy (duration)

Dollar Beta

Currency exposure (int'l assets)

Risk Appetite

VIX inverse (high beta, credit)

Quality Compounding

High ROIC, stable earnings

Crisis Alpha

Profits in dislocations (trend, vol)

Tail Protection

Insurance for left-tail events

Regimes

Markets change. Your analysis should too.

The Four Economic Quadrants

Every market environment is a combination of growth and inflation (Ray Dalio's All Weather framework)

Goldilocks

Growth: Rising | Inflation: Low

Performs: Equities, credit

Deflation

Growth: Falling | Inflation: Falling

Performs: Bonds, cash

Stagflation

Growth: Falling | Inflation: Rising

Performs: Commodities, TIPS

Reflation

Growth: Rising | Inflation: Rising

Performs: Value, real assets

Pre-Built Historical Regimes

2008 Financial Crisis

Sep 2008 - Mar 2009

Equity correlations spike, bonds rally

COVID Crash

Feb 2020 - Mar 2020

Rapid de-risking, everything sells

2022 Inflation Shock

Jan 2022 - Oct 2022

Stocks and bonds fall together

Post-COVID Recovery

Apr 2020 - Dec 2021

Risk-on, high correlation to equities

Simulation

Monte Carlo that respects how markets actually work.

Traditional MC

  • • Single set of correlations
  • • Constant volatility assumptions
  • • Ignores regime transitions
  • • Underestimates tail risk

Regime-Aware MC

  • • Different correlations per regime
  • • Volatility varies by regime
  • • Models transitions between states
  • • Captures crisis behavior

What You Get

Terminal Wealth

Where you might end up in 10, 20, 30 years

Drawdown Probabilities

How bad could it get? How likely?

Risk Attribution

Which sleeves drive your risk?

Regime Outcomes

How does your portfolio perform in recession vs. inflation?

The Research

This isn't a new idea. It's an institutional idea—made accessible.

Regime-Aware Allocation Outperforms

Ang & Bekaert (2002)

Investors who account for regime changes achieve better risk-adjusted returns than those using static models.

Risk Budgeting Improves Outcomes

Qian (2005)

Allocating by risk contribution—rather than capital—produces more balanced and resilient portfolios.

Tail Risk is Underestimated

Mandelbrot & Taleb

Extreme events occur far more often than normal distributions predict. Regime-aware models better capture these "fat tails."

Correlation Structure Matters

Markowitz (1952) limitations

MPT assumed stable correlations. Decades of research have shown this assumption breaks down—especially during stress.

How It Works

Three steps to portfolio clarity.

1

Organize into Sleeves

Import your holdings. Map each to a sleeve based on economic exposure. See your true risk concentration.

True exposures revealed.

2

Define Your Regimes

Use pre-built historical windows or define custom return and correlation assumptions for each regime.

Multiple scenarios to test.

3

Simulate & Decide

Run regime-aware Monte Carlo. See drawdowns, terminal wealth, and risk attribution. Adjust until confident.

Data-driven decisions.

Built for Serious Investors

Rigorous construction, not portfolio theater.

Sleeves-First

Institutional methodology

Regime-Aware

Model what matters

Auditable

Traceable assumptions

Reproducible

Same inputs, same outputs

Rigorous

The math is right

Ready to build a portfolio that holds up?

Import your holdings. Organize by economic exposure. Stress-test across regimes. Decide with evidence.