Having just eclipsed the $3 trillion milestone for managed assets, CEO F. William McNabb III reflected on Vanguard Group’s strategy in a recent interview with The Wall Street Journal, beginning with his leadership style compared to previous chief executives.

“The things we shared were a maniacal focus on our ownership [Vanguard is owned by its mutual funds] and the fact that we only serve one constituency, our investors,” McNabb said in the article.

“We express it differently: Jack Bogle would be way more public, and I’m driving it more inside the company, I think, and spending a lot of time focusing on that. What I’m trying to do is make it a much more global organization and take the culture to many different places.”

As for the recent influx of interest in low-cost passive investing through index funds, McNabb said he was surprised by how long it took to move away from high-cost managed investments. He also spoke to potentially imminent mutual-fund regulation and what he called a meritless lawsuit against a business model that has endured scrutiny for nearly 40 years.

Looking into the future, “cybersecurity is the biggest risk to American business today because it’s really pervasive. The second thing: There’s a lot of geopolitical uncertainty right now — how that affects markets and how that affects growth” keeps him up at night, he said in the interview.

And the chance of moving his Malvern headquarters to Wall Street? “Not in a million years. We’re not Wall Street, we serve Main Street. We have 25 million investors who come to us directly for 401(k) plans, and advisers. … I have no interest in Wall Street. I’ve been there, done that.”

Read more about McNabb’s perspective on Vanguard and the world around it in The Wall Street Journal here, and check out previous Chesco Business Today coverage of the nation’s largest mutual fund company here.