From Greenspan to Generative AI: What Twenty-Five Years in Financial Markets Have Taught Me

Alan Greenspan's passing made me realize something I hadn't fully appreciated before.

I've now spent twenty-five years watching financial markets reinvent themselves.

When I walked into Prudential Securities in 2000 to begin my career in compliance, I thought I was entering the world of traditional securities regulation. I had no idea I was stepping into one of the most transformative periods in modern financial history. By 2002, I was examining broker-dealers’ options and derivatives businesses at the American Stock Exchange—reviewing books and records, position limits, margin compliance, and internal controls. Greenspan was still Chair of the Federal Reserve.

Looking back, I realize my career has paralleled nearly every major transformation in modern finance.

Many will remember Greenspan as the Federal Reserve Chair who presided over the "Great Moderation," guiding the economy through Black Monday, the Asian Financial Crisis, the collapse of Long-Term Capital Management, the technology boom, and the aftermath of September 11. Others will remember the continuing debate over his views on monetary policy and regulation following the Global Financial Crisis.

For me, his passing carries a different significance. It reminds me just how profoundly the financial system has changed. The industry I entered now seems almost unrecognizable by comparison. We regulated traditional securities products. Electronic trading was still developing. Settlement was measured in days. Cybersecurity wasn't a boardroom discussion. Artificial intelligence belonged in research labs. Blockchain, digital assets, and tokenization simply didn't exist.

Technology supported the markets.

It had not yet become the market itself.

Over the next two decades, my career took me from exchange examinations to bank supervision at the Federal Reserve Bank of New York, regulatory oversight at FINRA, and ultimately to advising firms building the next generation of capital markets.

That journey has given me the opportunity to watch financial innovation from nearly every angle.

Today, through my consulting practice, I have the privilege of advising broker dealers, fintech companies, and market innovators that are reimagining how capital markets operate. Some are developing digital asset trading platforms. Others are modernizing private markets, creating new capital formation models, and leveraging technology to expand investor access and improve market efficiency. My role is to help translate innovative business models into regulatory frameworks that can operate within existing securities laws.

The conversations that once centered on paper confirmations and supervisory procedures now focus on distributed ledger technology, artificial intelligence, cybersecurity, operational resilience, and the future of market infrastructure.

The transformation has been extraordinary.

Perhaps the biggest change isn’t the technology itself- it’s the role technology now plays in financial markets.

Regulation has evolved accordingly.

The focus is no longer limited to products and legal entities. Increasingly, it encompasses technology infrastructure, data governance, cyber resilience, algorithmic accountability, third-party dependencies, and operational resilience. Yet despite all of this change, the objective remains remarkably consistent: protect investors, preserve market integrity, and promote resilient capital markets.

One thing I’ve learned is that every generation believes the innovation it is experiencing is unprecedented. In reality, every generation faces the same challenge: How do we embrace transformative technology without sacrificing the trust that makes markets work?

Looking ahead, the pace of change is only accelerating.

Artificial intelligence will reshape supervision, compliance, and risk management. Tokenized, programmable assets have the potential to transform how capital is raised, transferred, and settled. Real-time risk monitoring and machine-assisted oversight will continue redefining how financial institutions operate.

These innovations present extraordinary opportunities.

They also reinforce a lesson every market cycle eventually teaches.

Confidence is the foundation upon which capital markets are built.

Innovation succeeds only when investors trust the institutions, infrastructure, and regulatory frameworks that support it.

Twenty-five years into my career—from the trading floors of the American Stock Exchange to today's advising innovators building the next generation of capital markets —one lesson stands above the rest.

The world evolves, however: The principles that sustain healthy financial markets do not.

Twenty-five years from now, what will today's compliance professionals and regulators look back and say we got right—or wrong—about AI, tokenization, and the future of financial markets?