Premarket Roundup: Alcoa, CarMax

Among the premarket stories for Wednesday, April 8, from AP Financial News:

HARTFORD, Conn. (AP) — Shares of Alcoa Inc. bounced between gains and losses in premarket trading Wednesday after the aluminum maker reported a first-quarter loss as the weak economy continued to erode prices and demand.

NEW YORK (AP) — After hiking his stock target price on CarMax Inc. last month, Credit Suisse analyst Gary Balter reversed course Wednesday, downgrading the auto dealership and cutting his target price and profit estimate for the 2010 fiscal year in the wake of last week's earnings report.

NEW YORK (AP) — Shares of Juniper Networks Inc. jumped in premarket trading Wednesday after the network equipment maker said first-quarter earnings should meet forecasts even as revenue won't meet expectations.

NEW YORK (AP) — An analyst on Wednesday cut his earnings estimates for Morgan Stanley after revising his predictions for write-downs and commercial real estate investment losses during the quarter.

NEW YORK (AP) — Ruby Tuesday shares jumped nearly 20 percent before the open a day after the restaurant operator posted better-than-expected third-quarter results and said its loss for the year would be narrower.