Group 1 - American Express (AXP) is a global financial services company known for its credit card, charge card, and travel-related services, competing with Visa and Mastercard [1] - Truist Financial has set a price target of $400 for AXP, indicating a potential increase of 13.49% from its current trading price of $352.46 [1][5] - AXP's stock has shown a significant gain of 106% over the past two and a half years, compared to Apple's 35% increase, narrowing the gap between the two holdings in Berkshire Hathaway's portfolio [2][5] Group 2 - Warren Buffett first invested in American Express in 1964, and despite not making additional purchases since the 1990s, AXP has performed strongly with a current market capitalization of approximately $242.33 billion [3][5] - As of now, AXP's stock price is $351.79, reflecting a slight decrease of 0.11% or $0.39, with a trading volume of 756,673 shares indicating active investor interest [4]