*12/28/2005 Rating was Ba1
*03/23/2009 Rating was downgraded to Ba2
*07/18/2011 Rating was downgraded to Ba3
*12/05/2011 Rating was downgraded to B1
*01/04/2012 Rating was downgraded to B3
*01/10/2014 Rating was downgraded to Caa1
*01/20/2017 Rating was downgraded to Caa2
*11/17/2017 Rating was downgraded to Caa3
What is interesting is that Sears Holdings Corporation has pretty much been in junk-bond status since almost the very beginning of the merged companies existence!!
Source: https://m.moodys.com/credit-ratings/Sears-Holdings-Corp-credit-rating-808108658