1999
December – Ameritrade launches the Online Investor Index, the first daily measurement of the behavior of online investors.
September – Ameritrade announces it will offer extended-hours trading.
June – The Company announces a three-for-one stock split.
February – Ameritrade Holding announces a two-for-one stock split.
October – An agreement with Sprint PCS enables customers to access their Ameritrade accounts, place trades and receive stock alerts using the Sprint PCS Wireless Web. The two-way transactional service is the first of its kind via wireless phones.
