DurdenBTC · Vol-Targeted Portfolio · Survival Is Alpha

Two engines. Five assets. Sized by risk, not by hope.

A systematic, volatility-targeted basket. The Macro Regime Engine drives the equities (SPY, QQQ); the 8th Rule — one frozen config, no per-asset tuning — drives the diversifiers (BTC, ETH, Gold). Each sleeve is sized by inverse volatility so every position carries the same risk, not the same dollars. Cash sits in USFR. You rebalance only when a sleeve drifts >2% — roughly weekly.

Join on Substack — free, immediate updates to your inbox. Paid subscribers get the full live portfolio — allocations, signals, and both engines — for $7/mo.

Skin In The Game

How my own book is actually sized.

No theory. This is the core-satellite model I run my own capital on — and the same discipline the systems are built around. The vol-targeted basket governs the 97%. The Scanner gets a contained 3%. No exceptions to the bands.

97%Core · Vol-targeted basket (MRE + 8th Rule)
3%Sandbox · Altcoin Scanner
3–10% of sandbox per play 8–10 concurrent plays max often 20–80% in cash
Signals published every market day Every call timestamped — wins and losses 9 months live, paid tier 6 4,950 on X
The Model

One Basket. Two Engines.

One philosophy, one portfolio. A volatility-targeted basket of five assets where every sleeve is sized by inverse volatility — a 30% Bitcoin move and a 1% S&P move are sized to move the book by the same amount. The Macro Regime Engine drives the equities; the 8th Rule drives the diversifiers; flat sleeves roll to cash in USFR. The Sandbox (the Altcoin Scanner) is the contained 3% satellite. Underneath it all: cut the left tail, win on the sequence of returns.

Core · 97% — The Vol-Targeted Basket
$100k → $513k since 2018
DurdenBTC vol-targeted basket equity curve vs buy-and-hold, 2018 onward
Five assets, two engines, sized by risk parity. BTC, ETH & Gold from the 8th Rule; SPY & QQQ from the MRE; cash in USFR when sleeves go flat. Rebalanced on a >2% drift band — about 45 times a year, not daily churn. The point isn’t the biggest number in a bull run; it’s a 21.5% CAGR carried with a −10% worst drawdown and a 0.27 beta to stocks.
+21.5% CAGR 2.04 Sharpe 2.13 Calmar −10% Max DD 0.27 Beta

Backtest since 2018 — a benign-regime sample, shown for transparency, not a promise. Calibrate to the floor: live expectations are Calmar ~1.0–1.5, drawdowns ~−10% to −15%.

The Two Engines — the proof behind the basket

Equities · SPY + QQQ
Macro Regime Engine (MRE)
MRE — 26-voter macro regime engine with regime shading and risk-on/off markers
26 macro voters across growth, inflation, duration, and FX.. condensed into four regimes (Goldilocks, Reflation, Inflation, Deflation) and a position: 100% / 50% / 0%. The same engine reads the Nasdaq as cleanly as the S&P, so it drives both SPY and QQQ. 23 years of backtest, seven forward tests, zero failures.
+11.37% CAGR 1.02 Sharpe 0.87 Calmar −13.09% Max DD
Full breakdown →
Diversifiers · BTC + ETH + Gold
The 8th Rule — one frozen config
8th Rule trend ladder on Bitcoin — FLAT / PROBE / FULL positioning
One frozen parameter set applied unchanged to all three diversifiers — no per-asset tuning. A trend ladder: FLAT (0%) / PROBE (25%) / FULL (100%). The thesis: a robust, un-tuned config that generalizes beats a stack of hand-tuned engines you can’t trust out-of-sample. That’s why it holds up in walk-forward where tuned models break.
BTC Calmar 1.50 ETH Calmar 1.03 Gold Calmar 0.34 one config all three
Full breakdown →

One config, three diversifiers. The same frozen 8th-Rule settings run on BTC, ETH and Gold — then inverse-vol sizing decides how much of each the basket holds.

Sandbox · 3% — structured speculation, contained

Altcoins · BETA
Daily Altcoin Scanner
The other 3% of the book. The top 500 altcoins run nightly through the 8th Rule across four archetypes — transitions surfaced before the close. This is not a moonshot tip service: the Scanner finds the bets, and the same risk discipline enforces the size. The part of you that wants to swing for the fences gets a sandbox — not the whole portfolio.
500 alts scanned nightly 3–10% of sandbox per play 8–10 concurrent max 0% leverage
See how the Sandbox works →

Foundation · The worldview underneath it all — the thesis: cut the left tail, size by risk, win on the sequence of returns.

Explore Free

Charts, Research & Macro Data

Live Bitcoin models, macro economic charts, and weekly research.. all free, no login required. Start with the Bitcoin Harmonic Oscillator for a one-glance read on where we are in the cycle, check where price sits versus its 200-day moving average, or see how Bitcoin tracks the ISM manufacturing cycle.

What You Get

Live Data. Real Edge.

Paid subscribers get a live members dashboard: the vol-targeted basket with today’s target allocation and rebalance flag, both engines (MRE + 8th Rule), and US sector reads.. refreshed daily before markets open. Screenshot below the cards.

Macro Regime Engine

Live regime classification (Goldilocks / Reflation / Inflation / Deflation), 26-voter breakdown, and current SPY & QQQ position size. The full backtest history and seven forward tests are one click away.

Live

8th Rule Trend Sleeves

The diversifier engines — Bitcoin, Ethereum and Gold — each run on one frozen 8th-Rule config (FLAT / PROBE / FULL), with diagnostic chart and full backtest scorecard. Inverse-vol sizing turns the signals into basket weights.

Live

US Factor Bets — Sector Heatmap

A 3×3 grid covering all nine US sector ETFs (XLB, XLE, XLF, XLI, XLK, XLP, XLU, XLV, XLY). Each tile shows the engine’s current read; click a tile for the diagnostic chart.

Live

Macro Weather

SAAR momentum across Growth, Inflation, and Monetary Policy. Gives you a deeper understanding of what headwins & tailwinds are driving the current macro environment.

Live

Global Liquidity

Global M2 money supply vs Bitcoin with rate-of-change analysis across 21 economies in real time.

Live

Financial Stress

SOFR-EFFR, VIX, bond stress (MOVE proxy), and DXY strength. The four stress gauges that matter for sizing risk under the MRE.

Live
Sneak Peek

Members Only Access Preview

A sneak peak into the members only area where you have access to everything listed above.

DurdenBTC members-only dashboard preview — vol-targeted basket allocation, MRE + 8th Rule engines, sector heatmap, liquidity, stress
All the data, charts, signals, backtests & more.. at your fingertips.
The Receipts

Signature Moments

The engine doesn't predict crashes. It measures the macro environment turning hostile — credit spreads widening, volatility spiking, safety assets bidding — and steps aside before the waterfall. Specific dates, not summaries.

FEB 20, 2020 · COVID

MRE went risk-off Feb 20. SPX fell −34% over the next month. Re-entered May 2020, into the recovery.

NOV 2021 · THE 2022 BEAR

Exited November 2021. SPX fell ~25% through the rate shock. Back in January 2023, early.

DEC 2007 · GFC

Exited December 2007. SPX fell −56%. Flat through the entire waterfall, re-entered April 2009.

SEP 2000 · DOT-COM

Exited September 2000. SPX fell ~49% over two years. Re-entered near the bottom, December 2002.

See the full crash-by-crash breakdown in the thesis →

How It Works

Three Steps

01

Subscribe Free

Join on Substack. Get signal updates, strategy deep-dives, and macro regime commentary delivered to your inbox.

02

Upgrade for $7/mo

Unlock the full live portfolio on one dashboard: the vol-targeted basket with today’s allocation, both engines (MRE for SPY/QQQ, the 8th Rule for BTC/ETH/Gold), the US sector heatmap, the Daily Altcoin Scanner, plus macro weather, liquidity, and stress gauges.

03

Execute

Use the regime signals and live data to size your risk. Full position when conditions are green, scale down when they're not.

Pricing

Free vs Paid

Everything runs through Substack. Free gets you in the door. Paid unlocks the full dashboard for the price of a coffee.

Free

$0/month
  • Strategy breakdowns & deep dives
  • Macro regime commentary
  • Members dashboard access
  • Live positioning & macro weather
  • Financial stress & liquidity charts
  • Live basket, both engines & US sector heatmap
Subscribe Free
Pillar Guides

Go Deeper

If you want to understand how the systems actually work — and the macro frameworks they sit inside — these long-form guides cover the full thesis. Each one stands alone; together they're the curriculum.

Start with a free subscription

Upgrade to paid anytime for $7/month to unlock the full dashboard.

Read the full thesis: Survival Is Alpha →