by Calculated Risk on 11/15/2007 12:44:00 PM

Here is an interesting development, from an 8-K filed today by ADC Telecommunications (hat tip BR)

We hold a variety of highly rated interest bearing auction rate securities that most often represent interests in pools of either interest bearing loans or dividend yielding preferred shares. These auction rate securities provide liquidity via an auction process that resets the applicable interest rate at predetermined calendar intervals, usually every 7, 28, 35 or 90 days. This mechanism allows existing investors either to rollover their holdings, whereby they would continue to own their respective interest in the auction rate security, or to gain immediate liquidity by selling such interests at par. For several months, certain of these auctions have not had sufficient bidders to allow investors to complete a sale, indicating that immediate liquidity at par is unavailable.

At the end of our third quarter for fiscal 2007, we identified approximately $149.0 million of auction rate securities for which there were insufficient bidders at the scheduled rollover dates and another approximately $21.3 million which we believed were at risk of having this occur. As of November 15, 2007 we hold investments subject to auction processes with insufficient bidders with a par value of $169.8 million. These investments represent all of our investments held in auction rate securities.

We are continuing to monitor and analyze our auction rate securities investments. Recently one of these investments with a par value of approximately $17 million was downgraded from a Aaa rating to a A2 rating by Moodys Investor Services. We are not aware of any other of our auction rate securities investments that have been downgraded to date. In light of developing circumstances, we are analyzing the extent to which the estimated market value of this investment may no longer approximate its par value. We have not finalized this analysis. Further, it is possible we will determine other of these investments no longer approximate their par value. If we determine one or more investments no longer approximates its par value, it is possible we will have to record (a) an unrealized loss in the other comprehensive income section of shareowners' investment in our balance sheet as of October 31, 2007, and/or (b) an other-than-temporary impairment charge. An unrealized loss would be recorded in other comprehensive income to the extent we determined the loss on an investment was only temporary in nature and determined that we have the ability to continue to hold the investment until a recovery in market values occurs. In such an event, an unrealized loss would not reduce our net income for the quarter and year ended October 31, 2007, because the loss would not be viewed as permanent. An other-than-temporary impairment charge would be recorded against net income to the extent we determine the loss in fair value of any of these investments is other than temporary.

This is probably not significant for ADC, but these investments were pitched to many other corporations were the losses might be more significant. As BR noted:

Several contacts of mine tell me that the money center banks pitched this ... to money funds and corporations over the past 2 years as a little spice on the stew but still AAA. They bought it like candy.