Ticker Talk: News and Notes

Online brokerage Ameritrade Holding Corp. is broadcasting its annual shareholders meeting live this morning at 7:30 Pacific time on its Web site. Those wishing to take part can register by selecting the annual meeting icon at https://www.amtd.com.

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Marimba Inc., a Mountain View, Calif., supplier of technology that lets companies distribute and update software over the Internet, filed Tuesday for a $56-million initial public offering. Underwriters will include Morgan Stanley Dean Witter, Credit Suisse First Boston, BT Alex. Brown and Hambrecht & Quist.

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Palo Alto-based E-Trade Group Inc., the No. 3 online broker, has received Securities and Exchange Commission approval to start its own line of mutual funds. The first E-Trade fund, an index fund aimed at mimicking the performance of the Standard & Poor’s 500 index, will be launched next week, the company said Tuesday.