As previously discussed here, Hertz Global Holdings recently filed a lawsuit against research firm Audit Integrity after Audit Integrity listed Hertz and 19 other large companies as “likely to go bankrupt or suffer severe financial distress.” Hertz claims that Audit Integrity reached “incomplete and misleading conclusions.”

In a press release today, Audit Integrity stated that it has now "manually re-verified the data" it used in its analysis of Hertz and 19 other companies that it identified as statistically most likely to go bankrupt, and stands behind its earlier findings. Audit Integrity CEO Jack Zwingli stated that "we are incredulous that Hertz has chosen to squander its shareholder resources by filing a frivolous lawsuit.”

The company did acknowledge, however, that it had revised and upgraded the ranking of one of the other 19 companies--Mylan Inc.--after discovering a stock pricing error made by data provider Thomson Reuters.