Mark Cuban is no fan of the U.S. healthcare system. On Saturday, the billionaire investor took to X to unload on rising costs, corporate consolidation, and incentives he says are leaving patients and employers in a financial vise.

"People hate the economics of healthcare," Cuban wrote. "They are terrified they won't be able to afford what they need and they already can't afford their deductibles."

Employers aren't spared either. Cuban noted that "employers have to pay 30k a year and it impacts their hiring and firing decisions." That's $30,000 per employee annually — a number that makes you think twice about adding headcount.

Cuban also took aim at large healthcare conglomerates, accusing them of rigging the system. "The big vertically integrated companies game MLR, game managed Medicaid. Under pay, over charge, year apart, independent pharmacies and physicians," he said. MLR refers to the medical loss ratio, a regulatory metric that insurers must meet to ensure a minimum percentage of premiums goes to care.

He called the industry "the furthest thing from an efficient market" and challenged anyone defending the status quo: "And you think breaking them up would be worse? How could it possibly get worse."

This isn't Cuban's first critique of healthcare. He's previously argued that major health insurers act more like financial firms exploiting regulatory gaps than traditional insurers. He's proposed a model tied to the Affordable Care Act that would redirect monthly premiums into a mix of savings, catastrophic coverage, and routine care, with unused funds staying with individuals.

The policy debate is heating up. Senator Mark Kelly (D-Ariz.) said rising insurance costs have forced Americans to drop coverage after ACA subsidies expired, blaming Donald Trump and Republican lawmakers for failing to prevent predictable premium hikes. He cited a Wall Street Journal report showing nearly 10% of enrollees left plans due to affordability issues.

Meanwhile, Senator Elizabeth Warren (D-Mass.) moved to block a proposed $50 billion funding request tied to the administration's military efforts, urging that resources be redirected to healthcare. Citing cost estimates from Reuters, she argued the spending highlighted a mismatch in national priorities.

With costs climbing and political pressure mounting, the healthcare debate shows no signs of cooling off.