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: MB Financial (Nasdaq: MBFI) reported fourth-quarter earnings after the bell yesterday. Investors apparently liked what they saw, sending shares as much as 10% higher today.

So what: The Chicago-based holding company for MB Financial Bank trumpeted the following in its headline: strong core pre-tax, pre-provision earnings; a decrease in non-performing loans; and a strong capital and liquidity position.

Now what: If you're tracking MB Financial, follow CEO Mitchell Feiger's cue and keep an eye on loan growth, and make sure the new loans are of higher quality. In the conference call, Feiger said his company needs to do better in both areas.

Interested in more info on MB Financial? Add it to your watchlist by clicking here.

Fool analyst Rex Moore owns no stocks of companies mentioned here. 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.