Data: Financial Modeling Prep, Binance; Chart: Erin Davis/Axios VisualsFor years, Truth Social was President Trump's money-losing megaphone.Now his company is charging Wall Street up to $1.2 million a year for a split-second edge on posts that can — and frequently do — jolt global markets.Why it matters: Trump has transformed his second term into the most lucrative venture of his entire career, raking in more than $2.2 billion in 2025 from his family crypto empire, legal settlements and various licensing deals.Truth API is the logical endpoint of that profiteering: the presidency's unrivaled power to move markets, packaged and sold as a subscription.Catch up quick: The new real-time feed from Trump Media & Technology Group (TMTG) went live Aug. 1, delivering Truth Social posts directly to institutional clients in milliseconds.A source familiar with the matter tells Axios that access to the platform's 10 top-trending accounts costs between $60,000 and $100,000 per month. Customers seeking a broader range of accounts could pay more.At least five clients have signed up, according to The Wall Street Journal. Trump Media says its customers include financial news organizations and high-frequency trading firms.Follow the money: Trump Media is publicly traded, with Trump as its dominant shareholder. He is the sole beneficiary of a revocable trust that owns 41.5% of the company; Donald Trump Jr., the trust's sole trustee, controls the shares.Trump Media generated just $871,000 in revenue during the first quarter of 2026 and $3.68 million in all of 2025.Its shares have risen 7% since the eve of the API announcement, adding nearly $77 million to the paper value of Trump's stake.Zoom in: The product offered a live demonstration of its value almost immediately.Hours after Truth API launched, Trump announced that he had canceled massive planned strikes on Iran. Oil prices fell nearly 5% when markets reopened.A March 23 post postponing strikes on Iranian energy infrastructure sent Brent crude tumbling nearly 11%.Trump's March 2025 announcement of a U.S. crypto reserve drove XRP up 27% and added roughly $300 billion to the global crypto market.His threat last October to impose massive new tariffs on China sent the S&P 500 down 2.7%.Between the lines: Customers are buying an advantage measured in fractions of a second.Truth API gives trading algorithms a direct, machine-readable feed that they can act on before most investors receive a push alert or refresh their screens.Zoom out: In many ways, the arrangement distills the defining conflict of Trump's second term: The same presidential power that moves markets is feeding a business empire that enriches the president.Congressional Democrats have launched an investigation into and asked the SEC, CFTC and Office of Government Ethics to probe whether the feed creates conflicts of interest or enables market manipulation.Sen. Mark Warner (D-Va.) introduced legislation Monday to ban the practice altogether. "The president's company selling prioritized access to the president's market-moving posts is corrupt and erodes public confidence," he said.Reality check: TMTG says the posts are already public when they reach the API. What the company is selling is the latency gap — the brief interval between publication and widespread awareness.The company explicitly markets the service to firms for which "the cost of a delay in information" is highest.A TMTG spokesperson told Axios: "Senate and House Democrats continue to mischaracterize Truth API either out of ideological opposition to free markets or a failure to grasp the distinction between public and nonpublic information."The big picture: The commingling of public power and private profit has created an atmosphere of permanent suspicion around the Trump administration. The White House denies any conflicts of interest.Eerily timed wagers ahead of Trump's tariff and Iran announcements have triggered federal investigations into possible insider trading. No evidence has tied Trump or his family to those trades.Two episodes have moved beyond broad suspicion: A former White House teleprompter operator is under investigation for allegedly using advance access to Trump's speeches to place prediction-market bets; he has not been charged or publicly responded. A U.S. soldier has pleaded not guilty to charges that he wagered on the Maduro raid he helped carry out.The bottom line: Polling shows the broader pattern of self-dealing is taking a toll: 60% of Americans say Trump is using the presidency for personal gain, while approval of his handling of government corruption has plummeted to record lows.Sara Fischer contributed reporting.Disclosure: In 2023, TMTG sued 20 media organizations, including Axios, for defamation. Litigation is ongoing.