Adaptive Regime Core (ARC)
Multi-Regime2008 – PresentA globally diversified, factor-aware core with a light macro overlay designed to reduce one-regime dependency and remain investable across materially different market backdrops.
RegimeRegime·Multi-regime (credit shock → QE → reflation → inflation shock → concentration / dispersion)Drawdown snapshotARC·-51.91%SPY·-51.45%VT·-55.48%60/40·-32.57%3-Fund·-44.06%PerformancePerformanceARC vs SPY vs VT vs 60/40 vs 3-Fund🔍Click photo to zoomDrawdownDrawdownARC vs SPY vs VT vs 60/40 vs 3-Fund🔍Click photo to zoomAdditional contextDesign·Global + factor intentional (not SPY-only, not VT-neutral) Primary constraint (full cycle)Liquidity—Reserves / Balance Sheet / FundingView regime breakdownExpandCollapse▾
Adaptive Regime Core (ARC)
Multi-Regime2008 – PresentA globally diversified, factor-aware core with a light macro overlay designed to reduce one-regime dependency and remain investable across materially different market backdrops.
What ARC was (2008 → present)
- ARC is a robustness-first core: diversified across factors, regions, and return drivers so the portfolio is less dependent on any single style, geography, or market narrative.
- The macro overlay is intentionally light: it is not a prediction engine or a regime calling machine. It is a conditions filter that guides small, systematic tilts using inflation momentum, real rates, liquidity / credit conditions, and market breadth.
- ARC’s north star is staying investable: preserving a rules-based structure that reduces the odds of destructive behavioral mistakes during deep drawdowns, leadership whipsaws, and narrative-heavy environments.
Why ARC is needed (what 2008–present taught us)
- 2008–09: credit and funding stress became the primary market driver. When funding breaks, correlations often rise and “diversification” across risk assets helps less until liquidity is restored.
- In much of the 2010s, policy and financial conditions were major return drivers. Markets were heavily shaped by central bank credibility, liquidity, and repeated volatility-driven repricings.
- 2020: speed became the defining feature. The COVID shock showed that drawdowns can be violently fast and reversals can be policy-led, which increases the value of pre-defined rules over reactive decision-making.
- 2021–22: inflation persistence and rising real rates became the dominant pricing axis for many assets. When the discount rate resets, both equities and bonds can reprice together.
- From 2023 onward, narrow leadership and dispersion became especially important features of index behavior. Breadth can deteriorate beneath strong headline returns, and macro sensitivity can reappear quickly when conditions shift.
What markets did (full-cycle interpretation)
- Multiple distinct regimes, one durable lesson: return drivers rotate over time. The “best” portfolio changes with conditions, so a core should be built to survive and adapt, not to depend on one persistent environment.
- Over this period, the largest drawdowns were often tied to credit / liquidity breakdowns or discount-rate shocks, rather than ordinary slowdowns alone.
- Some of the strongest benchmark runs also came with hidden concentration, where leadership narrowed even as index returns remained strong.
- Over the full cycle, the persistent edge is rarely “calling tops and bottoms.” It is more often staying systematic when narratives are loud, leadership rotates, and price action turns violent.
How ARC is designed to respond across 2008 → present
- 1. Respect the two major fragility zones: credit / liquidity breaks and real-rate shocks. ARC reduces dependence on high-beta concentration when funding conditions deteriorate, and it avoids excessive duration fragility when real rates rise.
- 2. Stay diversified when it feels inefficient: ARC avoids turning into a single-factor proxy (all growth, all value, all US, all “AI”). The framework prefers robustness over fragile optimization.
- 3. Tilt small, not heroic: the overlay guides incremental posture changes, not large discretionary swings. The goal is better balance, not perfect timing.
- 4. Re-risk systematically: ARC adds risk as conditions improve. The objective is not to catch the exact bottom, but to reduce the odds of remaining underexposed after markets materially stabilize.
- 5. Behavioral guardrails are part of the design: the framework is meant to reduce regret loops, narrative whipsaws, and emotional reinventions after every difficult period.
| Name | Total Return | CAGR | Vol | Sharpe |
|---|---|---|---|---|
| ARC | 527.62% | 10.66% | 18.46% | 0.57 |
| SPY | 592.09% | 11.26% | 19.90% | 0.57 |
| VT | 304.64% | 8.01% | 20.60% | 0.41 |
| 60/40 | 320.11% | 8.24% | 11.77% | 0.62 |
| 3-Fund | 344.73% | 8.58% | 15.50% | 0.52 |
Results vs benchmarks
- ARC is not a capital-preservation strategy. It remains equity-first, so severe drawdowns are still possible in systemic shocks. The objective is improved robustness, diversification, and behavioral durability, not the elimination of portfolio pain.
- ARC will not lead in every regime. In narrow, benchmark-led advances or in periods where a single style dominates, diversification can look like a temporary drag. That tradeoff is intentional.

