US bank stocks are heading for their steepest decline since April's market turmoil, as investors grow increasingly concerned about mounting pressures in the private credit sector and the potential for artificial intelligence to disrupt the software industry. The selloff reflects broader anxieties about financial stability and technological disruption in key sectors.

Private credit markets have come under scrutiny following recent high-profile defaults and refinancing challenges, raising questions about the resilience of non-bank lending. Meanwhile, the rapid advancement of AI technology is causing investors to reassess valuations across the software sector, with fears that automation could erode profit margins and market share for established players.

The current market jitters echo the volatility seen in April, when banking sector stress and economic uncertainty triggered sharp declines. With interest rates remaining elevated and economic growth showing signs of slowing, investors are bracing for further turbulence as they navigate a complex landscape of financial and technological risks.