Wingstop

After a rare decline in same-store sales a year ago, the company started advertising and quickly recovered.

The week's big announcements, from completion of the Arby's-BWW merger to the newest wrinkles in Chipotle's turnaround plan, sometimes overshadowed small revelations with big implications. Here are a few of those tidbits you likely missed.

Investors didn't like the chain's unit growth outlook, as high wing prices last year slowed some development.