Lawyer Anand Ahuja said Tuesday the "Mean Girls" movie star reached a settlement with the brokerage before withdrawing the lawsuit a day earlier. Ahuja and an E-Trade Financial Corp. spokeswoman say the terms of the agreement are confidential.
Lohan had claimed E-Trade was referring to her in a Super Bowl ad that featured babies talking about a "milkaholic" named Lindsay.
Lohan spent two weeks in jail in California this year for violating her probation in a 2007 case involving drug use and driving under the influence.
E-Trade called Lohan's claims meritless. It said Lohan isn't the world's only Lindsay.