I will largely defer to mainstream media references for resolution purposes, though I will try to incorporate any market comments into the decision.
The institutions in question need not define themselves explicitly as banks, and they need not go insolvent as a result of the bank run.
"Bank run" can be defined as "A bank run or run on the bank occurs when many clients withdraw their money from a bank, because they believe the bank may fail in the near future."
I may trade on this market.
Could SVB, Signature Bank, and First Republic count?
@Yoav Yes. (I originally meant to exclude SVB, but obviously forgot when I wrote the question! So I'll include it.)
@CarsonGale So bank runs earlier in March would also count then?
@jack I'll count anything after market creation (March 12, 2023). I know the bulk of the SVB bank run occurred on 3/9-10, but considering the situation was still ongoing by market creation I think it counts.