[1] https://twitter.com/matt_levine/status/742800372473946112
Edit: For a more complete analysis of DB's capital position, they have published Moody's report on their credit. [2] I don't see much in there that would suggest DB was insolvent, but they do seem to be having some difficulty reorganizing their business.
[2] https://www.db.com/ir/de/download/Moody_s_on_DB_26_May_2016....