Just got the popup with the Schwab Platinum targeted 100K offer. The last AmEx related thing I did was take advantage of an 100K upgrade offer from the regular SPG to SPG Luxury/Bonvoy Brilliant around a year ago; I still have that card. I also have some nominal spend (~$150-200) every month on the Blue Business card.

Oh well, I guess Chase is going to get the interchange from the large purchase I need to make.