Health Care

GlaxoSmithKline Plc plans to spend more than $1 billion to raise stakes in its Indian and Nigerian consumer healthcare arms, as Britain's biggest drugmaker deepens its emerging markets and non-prescription consumer health footprint.

Aetna has signed a deal to buy rival Coventry Health Care for $5.7 billion.

Shares of some top pharmaceuticals companies were mixed at the close of trading: Baxter International Inc. fell $1.82 or 2.5 percent, to $71.49.

Shares of some top managed care companies were down at the close of trading: Aetna fell $1.20 or 1.4 percent, to $87.60.

A look at the 10 biggest percentage gainers on Nasdaq at 1 p.m.: conatus Pharmaceuticals Inc. rose 23.0 percent to $9.95.

Shares of some top medical devices companies were mixed at the close of trading: Allergan fell $1.32 or .6 percent, to $211.43.

Shares of some top managed care companies are down at 1 p.m.: Aetna fell $1.00 or 1.1 percent, to $87.80.

Shares of some top medical devices companies are mixed at 1 p.m.: Allergan fell $.64 or .3 percent, to $212.11.

Shares of some top pharmaceuticals companies are mixed at 1 p.m.: Baxter International Inc. fell $1.93 or 2.6 percent, to $71.38.

Shares of some top health care equipment companies are mixed at 1 p.m.: Becton, Dickinson & Co. rose $1.18 or .8 percent, to $141.05.

Shares of some top biotechnology companies are mixed at 1 p.m.: Amgen Inc. fell $2.52 or 1.6 percent, to $157.37.

Shares of some top medical devices companies are mixed at 10 a.m.: Allergan fell $.13 or .1 percent, to $212.62.

Shares of some top pharmaceuticals companies are mixed at 10 a.m.: Baxter International Inc. fell $1.56 or 2.1 percent, to $71.75.

Shares of some top managed care companies are down at 10 a.m.: Aetna fell $.21 or .2 percent, to $88.59.

Shares of some top health care equipment companies are mixed at 10 a.m.: Becton, Dickinson & Co. rose $.80 or .6 percent, to $140.66.

Shares of some top biotechnology companies are down at 10 a.m.: Amgen Inc. fell $4.37 or 2.7 percent, to $155.52.