(1) Were most of the government bonds held by SVB long-term or short-term bonds?

(2)  How did that aggravate (or mitigate) the SVB financial challenges?

(3). Interest Rate Environment Analysis: Investigate the interest rate environment at that time (i.e., interest rate had been increasing or decreasing, and had been changing drastically or slowly), and its implications for the risk that SVB's government bond holdings were facing.