Bank stocks helped lead a marketwide dive of nearly 300 points on Tuesday.

Near the close, the Standard & Poor's bank index was off a whopping 5.4%-far worse than the 3.4% loss in the high-profile Dow Jones industrial average.

Subscribe Now

Access to authoritative analysis and perspective and our data-driven report series.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.