Barclays has upgraded Citigroup Inc. (ticker: $C) to an overweight rating, indicating a positive outlook for the bank. This upgrade comes as earnings season approaches, with JPMorgan Chase & Co. (ticker: $JPM) set to kick off the reporting period on January 15. Other banks including Citigroup and Wells Fargo & Co. (ticker: $WFC) are also expected to report their earnings next week. Analysts note that all major banks, including JPMorgan and Morgan Stanley (ticker: $MS), have received upgrades ahead of this earnings season, suggesting a favorable sentiment in the banking sector. Additionally, JPMorgan is anticipated to highlight the importance of tokenized assets in investment portfolios in its upcoming commentary.