How nervous are investors about the US stock market?

BBC News 

How nervous are investors about the stock market? Every week it seems US financial markets are hit by another bout of fear. The latest worries spread this week from the banking sector in the US, after two regional lenders warned they would be hit by losses from alleged fraud. But before that, markets swooned over signs of rekindled US-China tensions, as the two superpowers face off over tariffs, advanced technology and access to rare earths. The bankruptcies of car parts supplier First Brands and subprime car lender Tricolor acted as a trigger for nervous chatter in September.