From the first link (Guardian) about Citigroup:

Shares in Citi, the third largest bank in the US, were 0.4% higher during early trading in New York. The lender, which has a market valuation of $100bn, is in the midst of a drive to boost profits, reduce bureaucracy and increase its stock price.

It came as JPMorgan Chase, America’s third biggest bank, reported its best-ever annual profit despite a charge in the last quarter to top up a US government deposit insurance fund in the wake of the failure of several regional lenders, including Silicon Valley Bank, last year.

What's the difference between third largest and third biggest?

From the first (Guardian) link about Citigroup:

Shares in Citi, the third largest bank in the US, were 0.4% higher during early trading in New York. The lender, which has a market valuation of $100bn, is in the midst of a drive to boost profits, reduce bureaucracy and increase its stock price.

It came as JPMorgan Chase, America’s third biggest bank, reported its best-ever annual profit despite a charge in the last quarter to top up a US government deposit insurance fund in the wake of the failure of several regional lenders, including Silicon Valley Bank, last year.

What's the difference between third largest and third biggest?