Section
Investment Framework
17 articles.
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How Much ETF Overlap Is Too Much? Measuring Redundancy in a Long-Term Core
Holding VOO, QQQ, and VGT together does not add diversification — it stacks three different wrappers around the same mega-cap names, so the second and third...
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Account Location: Which ETFs Belong in a Roth vs a Taxable Account
Account location decides where each fund lives across your accounts; it changes after-tax return without changing what you own. The general ordering:...
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Why 'VOO vs VTI' Is Usually the Wrong Question: A Framework for Measuring ETF Overlap
VOO and VTI share the same large-cap core, the same 0.03% fee, and a return history that has tracked within roughly a percentage point a year — so "which is...
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Why I Track Drawdown Recovery Time, Not Just Max Drawdown
Maximum drawdown tells you how deep the hole was; recovery time tells you how long you spent in it. They are not interchangeable. Recovery math is convex: a...
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Why Variance Drag Quietly Destroys Leveraged ETF Returns
A daily-rebalanced 2x ETF surrenders roughly one annualized variance to compounding each year — about 2.9 percentage points at S&P 500 volatility levels —...
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What 'AI in Investing' Actually Means in 2026 (Without the Marketing)
"AI" in investing means three different things — a theme (the companies), an engine (the fund's process), and a tool (the investor's workflow). Marketing...
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A 15-Minute Weekly Portfolio Review: A Reproducible Methodology
A useful weekly review is short, repeatable, and biased toward inaction — fifteen minutes is plenty if the steps are defined in advance. The decision rule...
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Why Most Investors Get Rebalancing Bands Wrong (Daryanani 2008 Revisited)
Daryanani's 2008 paper is widely cited and widely misread. The actual finding was not "5/25" — it was that relative drift bands of roughly 20% of the target...
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Why Tracking Error Matters More Than Expense Ratio in 2026
VOO and IVV both charge 0.03%. The fee debate ends in a tie, which means the right framework question is no longer "which is cheaper?" but "which one tracks...
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What +/-15 vs +/-25 Rebalancing Bands Actually Do — A 15-Year 60/40 Backtest
Over 15.7 years on a 60/40 VOO/BND portfolio, annual rebalancing produced 9.99% CAGR; ±15% drift bands produced 10.23%; ±25% bands produced 10.59%. The...
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The Ultimate 2026 Hybrid Portfolio: How to Mix Classic ETFs with AI Quant
The hybrid framework — a low-cost passive core plus a small AI-quant satellite — only earns its keep when the satellite delivers exposure the core does not....
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The Great Rotation Playbook: Full ETF Strategy for 2026
Sector and factor rotation is real in the data, but most retail rotation playbooks underperform a static allocation once tax, behavior gap, and...
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What Market Rotation Is — and Isn't — for Long-Horizon ETF Investors
Sector rotation is empirically real as cross-sectional dispersion, but the academic evidence that retail investors can trade it profitably after costs is...
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The First $10,000: A Framework for Long-Horizon ETF Allocation
For a first $10,000, the wrapper decision (Roth IRA, Traditional IRA, 401(k), HSA, or taxable brokerage) outweighs the ticker decision in nearly every...
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How to Start ETF Investing: The Complete 2026 Roadmap
Starting an ETF portfolio is a sequence of four decisions — horizon, account type, allocation, rebalancing rule. Get that sequence right and the ticker...
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The Honest Math of Leveraged ETFs: A 5-Year Data Read on TQQQ, SSO, and UPRO
Over the trailing five years, TQQQ delivered roughly 1.5x the realized CAGR of QQQM — not 3x — while taking on roughly 3x the drawdown and 3x the...
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Sizing an AI-Infrastructure Sleeve: VOO, QQQM, XLU, IFRA, and SGOV Through a Long-Horizon Lens
The "AI infrastructure" label sits across three different ETF wrappers — utilities (XLU), industrial buildout (IFRA), and the consuming software layer...