I wish this solution (and the material in IRS Pub 550) covered a liquidated dollars market place fund as opposed to a liquidated corporation, in my case Schwab PA muni fund SWEXX that liquidated in 2017. The 2 situations are similar although not equivalent. My basis from the fund is https://9-cash22198.blogocial.com/the-single-best-strategy-to-use-for-9-cash-68586338