Using Decision Science in Investing: Masters in Business with Omar Aguilar

Summary of Using Decision Science in Investing: Masters in Business with Omar Aguilar

by Bloomberg

1h 5m•October 2, 2026

Overview of Masters in Business with Omar Aguilar

Bloomberg’s Barry Ritholtz interviews Omar Aguilar, President, CEO, and CIO of Schwab Asset Management, about how decision science, behavioral finance, quantitative investing, and scale have shaped Schwab’s nearly $1.9 trillion asset-management business. The conversation moves from Aguilar’s academic background in statistics and decision sciences to Schwab’s low-cost investing model, the role of AI in wealth management, and the current state of markets, fixed income, and alternatives.

Key Themes and Takeaways

Decision science is the foundation of investing

Aguilar’s Ph.D. work in decision sciences and Bayesian statistics strongly influenced his investment philosophy. He emphasizes that investing is fundamentally about making decisions under uncertainty, continuously updating beliefs as new information arrives.

Long-term discipline beats market timing

A recurring theme is that investors should:

  • Stay invested
  • Stay diversified
  • Stay disciplined

Aguilar argues that these principles matter more than trying to time markets or chase performance.

Behavior matters as much as math

Schwab’s work in behavioral finance focuses on helping clients avoid common mistakes driven by emotion, especially during volatile markets. Aguilar stresses that investing combines:

  • the analytical brain
  • the emotional/instinctive brain

Successful investing requires managing both.

Omar Aguilar’s Background and Career Path

From academia to Wall Street

Aguilar trained in:

  • Actuarial science
  • Applied statistics
  • Statistics and decision sciences at Duke

He originally considered an academic career, but moved into finance and research roles at:

  • Bankers Trust
  • Merrill Lynch
  • Lehman Brothers
  • ING / Voya
  • Financial Engines
  • Schwab Asset Management

His career was shaped by major Wall Street events and mergers, which often opened new opportunities.

A quant with a practical streak

Aguilar’s early work focused on statistical and quantitative models for:

  • currencies
  • equity investing
  • asset allocation
  • alternatives

He repeatedly emphasizes the importance of combining technical rigor with real-world implementation.

Schwab Asset Management’s Strategy

Built around scale, transparency, and low cost

Aguilar describes Schwab’s asset-management philosophy as built on:

  • Transparency
  • Accessibility
  • Low cost

Schwab’s model is not to sell only proprietary products, but to offer clients a broad set of choices while keeping its own products simple and efficient.

“Core” portfolios are the focus

Schwab’s approach emphasizes building the foundational “core” of portfolios using:

  • ETFs
  • beta exposures
  • smart beta strategies
  • managed accounts

The goal is to give investors a portfolio structure that is:

  • transparent
  • liquid
  • low cost
  • easy to access

The dividend ETF as a flagship example

Aguilar highlights Schwab’s dividend strategy as a major success:

  • built over roughly 15 years
  • now the largest dividend ETF in the world
  • over $100 billion in assets
  • designed for quality, not just yield

Behavioral Finance and Investor Biases

Schwab’s “Biagnostics” tools

Schwab uses diagnostic tools to identify client biases and help advisors understand how clients think. The goal is to create longer-term relationships by matching:

  • what clients want
  • with what they need

The four major biases Aguilar sees most often

  1. Herding
    • Investors chase momentum, especially in concentrated names like the “Magnificent Seven.”
  2. Recency bias
    • People overweight the latest market move or headlines.
  3. Confirmation bias
    • Investors look for information that confirms what they already believe.
  4. Home-country bias
    • Investors prefer familiar domestic stocks and avoid international diversification.

The antidote: rules and preparation

Aguilar says Schwab tries to prepare investors in advance with a process, not just advice in the moment.

Market Outlook and Macro Views

The bull market has been driven by earnings and AI

Aguilar agrees that earnings have supported the bull market, with leadership heavily concentrated in:

  • AI-related names
  • mega-cap technology
  • energy at times

He notes that breadth improved earlier in the year but has recently narrowed again.

AI capex is still a major force

He believes the AI investment cycle is still ongoing, but is increasingly spreading beyond tech into:

  • healthcare
  • financials
  • industrials

A key future test will be whether all this spending produces real profitability.

U.S. growth is still solid, but late-cycle risks are rising

Aguilar says the U.S. economy has remained attractive thanks to:

  • stable labor markets
  • healthy credit conditions
  • fiscal support
  • strong nominal growth

But he also believes the market is likely getting closer to the end of the seven-year expansion he had forecast.

Fixed Income and Yield

Why Schwab avoided extending duration too early

Schwab’s fixed-income team was cautious about:

  • tight credit spreads
  • duration risk

That stance has been helpful so far.

Intermediate duration looks attractive now

As the 10-year yield has moved up, Aguilar sees more value in:

  • high-quality bonds
  • intermediate duration
  • roughly the 7–10 year area

He remains cautious on adding too much credit risk.

Alternatives and Private Markets

Schwab is constructive on alternatives, but with caveats

Aguilar says alternatives make sense for certain investors, especially:

  • mass affluent clients
  • wealthy clients
  • clients seeking diversification and access to private opportunities

Liquidity is the real issue, not credit

His biggest warning is that many investors misunderstand alternatives:

  • private assets are not as liquid as public markets
  • returns can appear smoother because valuations lag
  • liquidity constraints must be clearly understood

Why not every investor should use alternatives in retirement accounts

He thinks private assets may fit some 401(k) broker-window structures, but generally:

  • fees are too high
  • liquidity is too restrictive
  • many retirement savers are better served in public markets

AI in Wealth Management

AI is a productivity tool, not a replacement for people

Aguilar sees AI as the next big wave in finance, especially for:

  • internal efficiency
  • client service
  • research access
  • analytics
  • drafting first-pass work

But he does not think AI replaces human relationships.

Human advice remains central

His view is that investors, especially affluent ones, still want:

  • a real person to talk to
  • trust and relationship-building
  • help understanding emotional behavior

AI’s role is to free up advisors from administrative tasks so they can spend more time with clients.

Advice for Investors

Three rules to counter bias

Aguilar’s simple framework:

  1. Stay invested
  2. Stay diversified
  3. Stay disciplined

He says these rules are especially important before a bear market hits.

Don’t confuse investing with gambling

He draws a sharp line between:

  • investing = owning productive assets
  • gambling = taking odds without ownership

He warns against speculative behavior, especially in fast-growing markets or “predictive” trading ideas.

Career Advice for Students and Young Professionals

Build both hard and soft skills

For those interested in quant finance or wealth management, Aguilar recommends:

  • technical training
  • CFA or similar finance knowledge
  • programming / modeling skills
  • communication and interpersonal ability

He thinks the ability to explain complex ideas clearly is just as valuable as technical expertise.

Bottom Line

Omar Aguilar’s worldview blends quantitative rigor, behavioral insight, and long-term investing discipline. His message is that successful investing is not about prediction or speed, but about:

  • understanding uncertainty
  • building resilient portfolios
  • managing human bias
  • using technology to improve, not replace, judgment

If you want, I can also turn this into a shorter executive summary or a key quotes list.