The US Central Bank has recently began increasing its balance sheet. See the graphs
Federal Reserve Board – Recent balance sheet trends
Potentially Quantitive Easing may have re-started
The Return of Quantitative Easing | The Daily Economy
On the 15th Dec 2025 it was US$ 6,556,861 Million

Courtesy of the US Federal Reserve
As shown below, on the 9th Feb it stood at US$6,662,382 Million

Courtesy of the US Federal Reserve