$Upstart (UPST.US)$ Does anyone know why this is flying today? There does not seem to be any specific news regarding the stock...

$Silvergate Capital (SI.US)$ Article from my other brokerage account. Bad news... 
May 11 (Reuters) - Silvergate Capital Corp :
* SILVERGATE CAPITAL CORP - APPROXIMATELY 230 EMPLOYEES WILL BE SEPARATED
* SILVERGATE CAPITAL CORP - EFFECTIVE ON MAY 12, 2023,
APPROXIMATELY 230 EMPLOYEES WILL BE SEPARATED
* SILVERGATE CAPITAL CORP - ADDITIONAL INCREMENTAL
REDUCTIONS IN HEADCOUNT ARE EXPECTED TO OCCUR ON EACH OF JUNE 30, AUGUST 30, NOVEMBER 30, OR LATER
* SILVERGATE CAPITAL - ESTIMATES AGGREGATE COST...