SEC Approves Amendments to FINRA Rule 4210 Replacing Day Trading Margin Requirements with A Modernized Intraday Margin Standard – WilmerHale By daytrading SEC Approves Amendments to FINRA Rule 4210 Replacing Day Trading Margin Requirements with A Modernized Intraday Margin Standard WilmerHale Brought to you by Google News. Read the rest of the article here Facebook Twitter Pinterest