Belgium holds $477.3 billion in U.S. Treasury securities as of December 2025, ranking it fourth among all foreign holders of U.S. federal debt, ahead of Canada, France, and Taiwan. Belgium’s GDP is roughly $600 billion. The idea that a country with an economy that size has organically accumulated nearly half a trillion dollars in U.S. sovereign paper, driven by domestic institutional demand, does not survive casual scrutiny. Belgium’s appearance near the top of the foreign holdings table is not evidence of Belgian appetite for Treasuries.