Robinhood and TD Ameritrade were among the brokerages that reportedly experienced “technical difficulties” at open. Robinhood, TD Ameritrade & other major brokerages experiencing technical difficulties at open, due to record volume. — TD Ameritrade (@TDAmeritrade) January 27, 2021There were reports of login issues on the TD desktop site, too. By 11 a.m. the issue was resolved, TD said:Access to the TD Ameritrade Mobile app has been resolved. AdRead more: Stocks fall sharply on Wall Street, led lower by tech stocksRelated: In GameStop saga unfolding on Wall Street, 2 Goliaths fall