Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

The Dow Jones Industrial Average (^DJI 0.06%) will fall moderately at the start of trading this morning, according to stock index futures as of 7:50 a.m. EDT, shedding 54 points at the opening bell.

It was a rough session overnight for world markets. European exchanges traded lower, and Asian indexes dropped more than 1% on new worries that China is preparing to tighten its monetary policy.

With that bigger picture in mind, here three individual stock stories to watch for in today's market.

Corning (GLW -0.23%) and Samsung are getting tight. The two companies have been longtime collaborators, but last night they took it a step further, announcing a deal under which Samsung will invest $2.4 billion to gain a 7.4% stake in Corning's business. Corning will also take full ownership of Samsung Corning Precision Materials, the LCD manufacturing venture in South Korea that is now jointly run by both companies. Corning expects the transaction to add $2 billion to annual sales, $350 million in profit, and about $500 million in added cash flow. The company's shares are up 20% in premarket trading.

Boeing (BA 0.01%) logged a 16% rise in quarterly profit to $1.80 a share this morning. Sales hit $22.1 billion, 11% higher than the year-ago quarter, as the company overcame uncertainty in the U.S defense market to post $7 billion in new business in that sector. Boeing also boosted its earnings outlook for the year while leaving its sales forecast intact. The company's backlog figure, an important indicator of future business, hit a record $415 billion. Shares are up 2.9% in premarket trading.

Finally, Lumber Liquidators (LL -3.80%) reported strong quarterly results this morning. Sales spiked by 24% to $254 million. Profit grew even faster, improving by 58.4% to reach $0.73 per share. Both results beat analysts' expectations. Key to that outperformance was the company's 17.4% bounce in comparable-store sales, powered by an impressive 10% boost in customer traffic. Lumber Liquidators also raised its full-year sales outlook to almost $1 billion from the roughly $950 million it previously expected. The stock is up 3.7% in premarket trading.