Here are some highlights from last week's earnings coverage from BloggingStocks:

• Activision Blizzard Inc. (NASDAQ: ATVI) reported better-than-expected Q2 results, sending shares higher.
• Blackstone Group (NYSE: BX) said it swung to a Q2 profit despite a dearth of leveraged buyouts.
• CBS Corp. (NYSE: CBS) Q2 earnings declined but still topped estimates, sending shares higher.
• Coinstar Inc. (NASDAQ: CSTR) reported stellar Q2 results driven by its the popularity of RedBox.
• Clorox Co. (NYSE: CLX) posted solid Q4 earnings but said revenues were flat due to currency effects.
• Duke Energy Corp. (NYSE: DUK) lower Q2 earnings beat expectations by a penny but revenue fell short.

On Thursday, Aug. 6, Speedway Motorsports (NYSE: TRK) crossed its Q2 earnings finish line. The company reported a profit of 82 cents per share in the second three months of the year, well above consensus Wall Street estimates for a profit of 79 cents per share.

Now, you might think that TRK took the trading day's checkered flag with a win after its strong earnings beat, but that wasn't the case. Despite a solid move higher in the shares in the first hour of Thursday trade, TRK shares finished the session down more than 5%.

Starting next year, the International Speedway Corp (NASDAQ: ISCA, ISCB) will end its 50-year relationship with Pepsi, a division of PepsiCo (NYSE: PEP), and launch a new, 10 year contract with its arch-rival, Coca-Cola (NYSE: KO).

The deal is estimated to earn Coke $50M a year over the next 10 years, with all of Coca-Cola's North American brands exclusively on sale in ISC's 10 racetracks. More importantly, Coca-Cola will gain thousands of hours of face time in front of millions of loyal sports fans. Coke will also take over the historic Pepsi 400 at Daytona, which had ties to Daytona's first event back in 1959.

The move to Coke comes as NASCAR was starting to gain popularity outside the boundaries of the Mason-Dixon line.

Coca-Cola isn't new to NASCAR. The soft-drink giant already has a contract with the six Speedway Motorsports (NYSE: TRK) tracks and continues to sponsor several drivers, including Tony Stewart, Denny Hamlin, Jeff Burton, Carl Edwards and Kevin Harvick. Taking the ISC contract from Pepsi now gives Coke majority control of non-alcoholic beverages at most of NASCAR's tracks.

Pepsi's not completely out of the race though. The soft-drink maker will still have an affiliation with NASCAR, maintaining a link to ISC through its parent company PepsiCo, whose Gatorade name will remain the title sponsor for victory lane at all ISC tracks. Pepsi will also continue to sponsor Hendrick Motorsports and driver Jeff Gordon.