Bank of America shares are trading lower in extended hours, following a trend of mild pressure observed during the regular session. The move comes as investors brace for the company's third-quarter earnings report scheduled for Wednesday morning, with market sentiment dampened by broader banking sector headwinds including surging Treasury yields and concerns over moderating investment banking and trading revenues. Peer performance across the financial sector was also broadly negative throughout the day, with major institutions like Citigroup and Wells Fargo experiencing more significant declines, reflecting a cautious environment ahead of the upcoming earnings releases.