I wonder if it’s correct to also think about it in this way: idle cash devalues over time. Coupled with interest (no matter how small) that they pay out to their depositors, this exposes banks to future liability. To counter that, they have to give “jobs” to as much of this cash as possible so that they can make those payments while also pocketing a profit for themselves.
As for money markets, don’t those get invested in treasury bills/notes anyway? Why go through a “middleman” when one has enough volume to invest directly?
Short-term obligations may not provide the yield that their financial structure requires.
10-year notes, in certain situations, provide an optimal combo of yield and risk. Provided, of course, that nothing major happens to the economy which wasn’t the case here. Then again, who’s good at predicting that?
In the end, it seemed like, given what was true at the time the decision was made, SVB made a rational choice.
