Interactive Brokers Day Trading Buying Power May 2026

: This is typically 4x your maintenance margin excess from the previous day's close for Pattern Day Traders (PDT).

In Interactive Brokers (IBKR), refers to the maximum dollar amount of securities you can purchase specifically for intraday trades—positions that must be closed before the market closes. Core Definitions and Calculations interactive brokers day trading buying power

: In a cash account, your buying power is simply your settled cash . Key Rules and Restrictions Equity with Loan Value - IBKR Campus : This is typically 4x your maintenance margin