PG&E's imminent bankruptcy would put it in rarefied air alongside Enron and Lehman Brothers

• PG&E's impending bankrupcty would put it in notorious company, at least in terms of size.
• The company would join the ranks of "failing angels," or companies whose debt goes straight from investment grade to default.

If PG&E follows through on plans to file for bankruptcy before the end of the month, it will be the biggest utility bankruptcy since 2001...which was the first time PG&E filed for bankruptcy.

By the numbers: PG&E's planned filing would be the ninth largest bankruptcy since at least the mid-1980s - falling just below the likes of Lehman Brothers, WorldCom and General Motors.

• Bonus stat: It's incredibly rare that companies default within one year of holding an investment grade credit rating, Bank of America-Merrill Lynch notes.
• If PG&E does file for bankruptcy, they will become a part of a super exclusive "Failing Angels" club - companies that fall from investment grade, skip the high yield or junk market and go straight to default.
• The other members of the "Failing Angels" club: Enron, Lehman and MF Global.

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