The SEC Just Scrapped the $25,000 Rule That Kept New Traders From Going Into Debt

The SEC eliminated the Pattern Day Trader $25,000 equity floor, allowing unlimited day trading and up to 4x margin buying power for accounts of any size. Markets immediately priced the change as favorable for retail-focused brokers — Robinhood has rallied ~22% over the past month and Interactive Brokers ~15% — and brokerage margin books already show sizable growth (Robinhood ~$16.8B in Q4 2025, $18.4B in January; IBKR average customer margin loans ~$89.21B in Q1 2026). The move should boost net interest income for brokers but raises downside tail risk: small, inexperienced traders using 4x leverage can be rapidly driven into debt by modest market moves. Overall market impact is mixed — positive for broker revenues and equity performance, negative for retail risk exposure and potential increases in margin debt.