TDAmeritrade and E*trade are discount online stock trading brokers. There are as many discount online stock trading brokers as there are dollar stores in America today. Weíre familiar with the big dogs like TDAmeritrade. For example, for a $2000 minimum deposit, you can open an online stock trading account and only pay $9.99 per trade with no monthly fees. Thatís not bad as all the others Iíve seen are higher and then some do have monthly fees as well.