13% of Equifax's revenues come from the mortgage industry. As Countrywide Financial announced its struggles with the deteriorating subprime market, investors worried that subprime deterioration could affect EFX's revenues.
On May 15th, Equifax acquired TALX, the largest employment verification company in the U.S. to further complement their services which boosted prices. On June 4th, Equifax raised their 2007 expectations which further raised prices. In total, EFX stock price slowly gained from $41.32 USD to $43.75 USD.
On Valentine's Day, EFX announced that it would acquire TALX Corp., the largest employment verification company in the U.S., for $1.4 billion and assume its $191.5 million in debt. Stock price fell from $41.91 USD to $39.63 USD, and further to $36.52 USD on March 5th.