Resources

Research on optimization, tax, and scale.

Long-form, vendor-neutral writing on the problems that actually decide whether a personalized-portfolio business can grow: the methods, the market, the tax machinery, the benchmarks, and the infrastructure economics. Evidence-led, honest about trade-offs, and written for readers who range from curious to expert.

Latest research

Benchmarking

How to Run an Optimizer Benchmark That Survives a Skeptic

Five parity rules that decide whether your speedup number is real, written from the buyer's side of the table.

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Systems

Your Optimizer's Average Runtime Is the Least Interesting Thing About It

When a real deadline sits on the other side of the computation, the tail is the product and the mean is decoration.

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Benchmarking

Nobody Ships Machine Precision: Choosing the Accuracy Your Product Actually Needs

How to set an optimizer's accuracy target in basis points and dollars, and why grading it with an objective ratio quietly breaks.

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Wealth Tech

Harvested Losses Are an Activity Number. Clients Keep a Different One.

Gross losses harvested measures how much you traded. What a named client actually keeps is a harder number, and it is now computable.

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Benchmarking

How to Prove a Performance Claim Without Open-Sourcing Your Engine

A contract for publishing proprietary performance claims that a buyer can check on the outputs, with tools the buyer controls.

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Operations & Scale

Deadline-Bounded Institutional Rebalancing: What It Is and Why It's Hard

A hard deadline is a constraint on the workflow, not a preference on the objective — and it changes what a good answer even means.

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Benchmarking

Inside the Asymmetry PRISM Benchmark: What We Measured and How

A plain-language walkthrough of the arXiv:2606.23367 methodology — the evaluation boundary, "completed rows", and what the number cannot tell you.

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Energy & Grid

Optimizing Grid Dispatch Inside the Control Tick: The CAISO Case

Where the ~5 ms grid deadline comes from, and why feasibility and plan stability matter more than raw speed.

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Market

After-Tax Alpha: Why Tax Management Became the Battleground

When beta is free, after-tax outcome is the last reliable edge — and it rewards computation over intuition.

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Due Diligence

What "Institutional-Grade" Actually Means for an Optimization Engine

The five testable properties that separate the real thing from the brochure — and the questions that reveal which you're looking at.

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Market

The Personalization Wave: Why Direct Indexing Is Eating the SMA

The market is shifting from pooled funds to personalized, tax-managed accounts faster than almost anyone is operationally ready for.

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Operations & Scale

The Overnight Batch: Pricing a Whole Book Before the Open

Why nightly rebalance batches break at scale — and why deadlines are governed by tails, not averages.

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Algorithms

A Practical Taxonomy of Portfolio Optimization Methods

Convex, integer, first-order, heuristic, quantum — a vendor-neutral guide to what each family is good at and where it breaks.

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Tax

Wash Sales, Lots, and the Hidden Complexity of After-Tax Investing

Why tax-loss harvesting is a constrained optimization problem, not a spreadsheet exercise.

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Economics

Build vs. Buy: The True Cost of an In-House Optimization Stack

The prototype is the cheap 20%. Scale, validation, audit, and years of maintenance are the rest.

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Compliance & Trust

Determinism, Reproducibility, and the Coming Audit Standard

Why reproducibility is becoming a compliance requirement — and what it takes to re-derive any trade on any date.

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Evaluation

Reading Solver Benchmarks Like an Adversary

A buyer's checklist for tearing an optimization benchmark apart — and the questions the slide was built to skip.

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GPU & Compute

GPU Computing in Quantitative Finance: A Sober Look

Where massively parallel hardware genuinely helps in finance — and where it quietly makes small problems slower.

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Frontier

Quantum Optimization for Portfolios: Hype, Reality, and an Honest Roadmap

Where quantum methods might eventually help portfolio construction — and why honesty about the timeline is the credible posture.

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Risk

Risk Models Meet the Optimizer: How Factor Structure Shapes Real Portfolios

How factor structure flows into construction, and why the risk model and the optimizer have to be co-designed.

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