In a major policy announcement on Monday, the Biden administration introduced a comprehensive set of antitrust reforms aimed at curbing the market dominance of major technology companies. The proposed legislation, dubbed the "Digital Competition and Innovation Act," would empower federal agencies to break up firms that act as monopolies and impose stricter oversight on mergers and acquisitions. The announcement sent shockwaves through the stock market, with the tech-heavy Nasdaq Composite falling 2.3% by midday trading. Shares of industry giants such as Meta Platforms, Alphabet, Amazon, and Apple all experienced sharp declines. Analysts warn that the new regulatory environment could dampen profit margins, limit growth strategies, and increase compliance costs for the sector. "Investors are pricing in a future where Big Tech faces significant hurdles to expansion," said Marisa Thornton, senior policy analyst at Brookstone Capital Partners. "The risk premium on these firms has just gone up." Under the proposed framework, the Federal Trade Commission (FTC) and Department of Justice (DOJ) would gain expanded authority to investigate and dismantle anti-competitive practices. The legislation would also create a special tribunal to expedite antitrust cases related to digital platforms. Meanwhile, corporate earnings season added to market jitters. Several major banks, including JPMorgan Chase and Goldman Sachs, reported weaker-than-expected profits amid higher loan loss provisions and a cooling housing market. Financial sector stocks slipped 1.7% overall, further dragging down broader indices. Adding to the unease, a fresh insider trading scandal emerged as the Securities and Exchange Commission (SEC) charged two former executives at a leading semiconductor firm with profiting from non-public information ahead of a major earnings announcement. The SEC emphasized that enforcement actions are a top priority as it seeks to bolster market integrity. Market observers suggest that the convergence of stricter regulations, disappointing earnings, and heightened enforcement activity could lead to increased volatility in the weeks ahead. "This is a regulatory and macro environment that demands caution," said Elena Vargas, chief investment strategist at Atlas Financial. The White House has signaled that it will work with Congress to fast-track the new antitrust legislation, although political analysts note that significant hurdles remain in a divided legislature. Nevertheless, the prospect of a tougher regulatory regime is already reshaping investor sentiment across Wall Street.