Stock price when the opinion was issued
Positioned higher on the socio-economic side than Visa or MA, so it doesn't have a lot of credit problems. Absolutely spectacular track record. Extremely profitable right through the entire financial crisis. Earnings growth at the 15% annualized level, trades at only 18x. Excess cash generation. Repurchased ~40% of stock in last 20 years. Yield is 1.17%, keeps jacking it up.
Also a core holding of his good friend Warren Buffett ;)
She just trimmed AmEx as part of typical prudent portfolio management. She bought this in 2019 at 14x PE and is now at 19x PE with 13% earnings growth for the next two years. If the market hits volatility, she's perfectly fine taking a little money off the table.