Ken Griffin is betting big on Miami. Will residents benefit? | Opinion

Miami isn’t short on billionaires. But Ken Griffin is doing more than just living here. In 2022, he moved his hedge fund Citadel’s headquarters to Miami. And now he’s announced a plan to expand the office footprint at the tower the company is building in Brickell.

The decision to expand came days after New York City Mayor Zohran Mamdani’s proposed tax on second homes worth more than $5 million. A video announcing the tax proposal showed a $238 million New York penthouse owned by Griffin, the Miami Herald reported.

“We have added several hundred thousand square feet of new space in our new [Miami] building,” Griffin said in a Tuesday interview on CNBC’s The Exchange. “We will add far more jobs in Miami over the next decade as an immediate and direct consequence of the mayor’s poor decision here with respect to his posting of that video.”

We welcome the investment. Just having the wealthy buy homes in South Florida isn’t enough. Economic growth and jobs must follow them. Citadel’s planned 54-story headquarters at 1201 Brickell Bay Dr. is expected to be 1.7 million square feet, according to the Commercial Observer. Citadel and Citadel Securities already lease roughly 130,000 square feet in Brickell, in addition to space at Southeast Financial Center.

Whether Mamdani’s tax on second homes comes to fruition remains to be seen and, if it does, it will likely push more wealthy people to relocate to Florida. The proposal is a symptom of a problem that Miami and the rest of the country are increasingly facing: the growing income gap between top earners and the middle and working classes. The influx of wealth into South Florida since the pandemic has exacerbated the problem. Miami-Dade County has lost residents to other parts of the state and the U.S., probably because many can no longer afford to live here, as the Herald Editorial Board previously reported.

Concerns about rising costs are legitimate as more billionaires flock to Miami and require action by local and state officials. But cities don’t become economic powerhouses by accident. Growth happens when companies choose to build, hire and expand — and when local leaders create an environment that encourages them to stay.

In recent years, Miami has inched toward becoming a hub for financial firms and tech companies. Investments by Griffin and Citadel signal a turning point that the city could become the next financial capital. The new headquarters could help cement the city’s reputation as the Wall Street of the South.

Griffin’s investment suggests Miami is becoming more than a tax haven or seasonal destination. That’s promising.

But a 54-story tower in Brickell should bring more to the city than another skyscraper. Its real value will be measured by the opportunities it creates.

If done right, it could generate thousands of jobs — not only for employees relocating from Chicago or the Northeast, but for Miamians as well; not only for finance and technology professionals, but for electricians, HVAC technicians and other skilled laborers. Building projects of this magnitude create more than just office space — they create economic ecosystems.

Miami is competing with legacy financial capitals such as New York for investment and jobs, but also with other emerging cities across the Sun Belt that, like Florida, offer a friendly business climate but also more affordability.

“We’ve seen a mass exodus of business leadership from California to Texas, to Florida,” Griffin said in an interview at the Milken Institute Tuesday.

Miami must become a place where business investments translate into broad-based prosperity and create opportunity for those who already call the city home. A project this large should create pathways for people to build careers, earn higher wages and provide long-term economic mobility. That’s the real test for Miami’s next chapter.

This story was originally published May 8, 2026 at 5:00 AM.