You can `s/treasuries/mortgage-backed securities/g` into my comment and it doesn't change much, but my understanding is that they had a lot of treasuries (not to the exclusion of having MBSs).
> To fund the redemptions, on Wednesday Silicon Valley Bank sold a $21bn bond portfolio consisting mostly of US Treasuries.
All your link shows is that Guardian, Reuters, and others have equally as bad reporting as commenters here, just parroting each other constantly...
SVB's actual announcement says "Additionally, earlier today, SVB completed the sale of substantially of its available for sale securities portfolio. SVB sold approximately $21 billion of securities, which will result in an after tax loss of approximately $1.8 billion in the first quarter of 2023."
I haven't seen any evidence that there were substantial Treasuries sold, I just see MBS on their balance sheet.
> To fund the redemptions, on Wednesday Silicon Valley Bank sold a $21bn bond portfolio consisting mostly of US Treasuries.
https://www.theguardian.com/us-news/2023/mar/10/silicon-vall...