Corporate earnings season is kicking off. Corporate profits have been the engine behind the stock market's recent rally, but there's worry on Wall Street that earnings are losing momentum.
Express Scripts is looking to close a deal to takeover Medco Health Solutions this week. The combined companies will handle the prescription drugs of 135 million Americans. What effect will that have on pharmacy drug prices?
The giant online retailer buys robot-maker Kiva Systems for $775 million. The automatons will bring products to workers in Amazon's massive distribution centers.
