Media World: Why did CNBC slump in July?

The stock market's best July in 20 years did not do CNBC much good.

Ratings for the No. 1 business news network were down 24 percent year-over-year among viewers in the key 25 to 54 age demographic; among total viewers, ratings slopped by 28 percent. There also were double-digit declines for CNBC's top shows, including "Squawk on the Street," "Street Signs" and Jim Cramer's "Mad Money." Viewership for the "Kudlow Report," hosted by the hyper-grumpy Larry Kudlow, fell 34 percent while the extraordinarily spunky Suze Orman saw her ratings in the key demographic plunge 43 percent.