Rough idle: O'Reilly Automotive shares nose-dived 18 percent to $180.19 Wednesday after posting a nearly 2 percent drop in same-store sales that its CEO attributed in part to "overall weak consumer demand," and warned will have a "consequent impact on our operating profitability." Shares finished the week at $172.85.

Deal bounce: Consumer financial services company Bankrate climbed 9 percent to $13.95 Monday after it agreed to be acquired by Red Ventures for $14 a share, or $1.25 billion. Shares closed Friday at $ 13.90.

Secret's out: L Brands shares dropped 10.6 percent to $48.38 Thursday after it reported that its sales fell 6 percent in June as the company continues to struggle with the effects of ending its swimwear business. Sales at stores open at least a year dropped 9 percent. The stock closed the week at $45.11.

Trust tryst: Monogram Residential Trustshares soared 22 percent to $11.99 Wednesday after it agreed to be acquired for $3 billion, or $12 a share, by a fund led by Greystar Real Estate Partners. Shares closed Friday at $11.90.

Traction: Ford Motor shares rose 3.3 percent to $11.56 Monday as June vehicle sales counts declined less than expected. Ford shares closed the week at $11.26.

Home sweet home: Home Shopping Network shares rose 27 percent to $39.67 Thursday after Liberty Interactive said it would buy the company for about $2.6 billion in stock, or $40.36 a share. HSN shares closed the week at $39.60. Liberty shares, which fell 1.3 percent to $24.15 on the news, closed Friday at $24.08.