Large data center provider Equinix filed a notice with the U.S. Securities and Exchange Commission, denying what the notice referred to as a "rumor in the market regarding 'speculation about Equinix's accounting.'"

Despite the company's policy of declining comment on unsubstantiated rumors, one of its directors (unnamed in the notice) was contacted by an investor about the accounting rumor and said he was not aware of facts supporting it, according to the document.

Subsequently, Equinix filed Form 8-K with the SEC to "inform all investors that the company is not aware of any undisclosed accounting matters affecting the company."