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.

What: Shares of US Airways (NYSE: LCC) took off this morning. After reaching a cruising altitude of 10% gains, shares have started their descent and are now up "only" 4% for the day, after the company reported fourth-quarter earnings.

So what: Revenue went up to $3.16 billion, with earnings per share of $0.13. While sales just slimly exceeded the estimate of $3.14 billion, the bottom line trounced the $0.02 consensus. The year-over-year decline in profitability was unsurprisingly attributed to the jump in oil prices.

Now what: CEO Doug Parker confirmed that the company was looking into potential deals to acquire now-bankrupt American Airlines parent AMR (OTC: AAMRQ). The possible deal would hardly be surprising, since bankruptcy and consolidation are par for the course within the industry. Rival carrier Delta Airlines has even been named as a potential suitor to pick up AA's pieces.

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Fool contributor Evan Niu holds no position in any company mentioned. Click here to see his holdings and a short bio. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.