Custom portfolios built on over 15 years of experience and independent thinking.

Black and white portrait of a smiling man wearing a suit and striped shirt, with a plain white background.

Meet AJ Blackstone

Founder · President · Portfolio Architect

For more than 15 years, I’ve been dedicated to building, managing, and refining investment portfolios for individuals, families, and advisors. Over my career, I’ve overseen more than $250 million in client assets, managing hundreds of separate accounts with a focus on precision, discipline, and long-term outcomes.

PortfolioLab exists because I believe investors deserve more than mass-produced models and generic ETF allocations. They deserve a portfolio built for them — engineered with care, grounded in research, and monitored with institutional-level tools.

Experience That Scales

Managing portfolios at scale requires more than investment knowledge — it requires systems, processes, and technology that ensure consistency, accuracy, and transparency across every account.

My background includes:

  • Designing and managing portfolios across hundreds of separate accounts

  • Implementing rebalancing systems and workflow automation

  • Integrated AI-driven research tools to enhance security screening, risk analysis, and portfolio optimization.

  • Executing trades and maintaining oversight with institutional-level precision

This operational experience is at the heart of PortfolioLab’s approach: customized portfolios built with scalable, repeatable processes.

Investment Philosophy

My investment philosophy is shaped by two timeless schools of thought:

Value Investing — Benjamin Graham

I believe in intrinsic value, margin of safety, and disciplined analysis — principles that remain as relevant today as they were a century ago.

The Mises School of Economics

Strong economic foundations matter. Markets, incentives, and human behavior drive cycles. Understanding the underlying mechanics leads to better decision-making, especially in times of uncertainty.

In practice, this means your portfolio is built with:

  • Rational expectations

  • Risk awareness

  • Independent thinking

  • A long-term perspective

Never speculation. Never guesswork.

Outside the Lab

When I’m not researching markets or engineering portfolios, you’ll likely find me:

  • Spending time with my young family,

  • On the golf course, working on my swing, or

  • Snow skiing, enjoying fresh mountain air.