アメリカ西海岸に本拠をもつ大規模金融機関"Silicon Valley Bank (SVB)"がFRBの攻撃的金利引き上げ政策の中で、突然、経営破綻した。 SVB catered mainly to the insular ecosystem of startups and the investors that fund them. Its deposits boomed alongside the tech industry, rising 86% in 2021 to $\$$189 billion and peaking at $\$$198 billion a quarter later. The bank poured large amounts of the deposits into U.S. Treasurys and other government-sponsored