U.S. federal government debt has exceeded $40 trillion for the first time, according to Treasury Department data, as markets showed mixed moves ahead of the U.S. session. Dow Jones futures fell 0.79%, S&P 500 futures declined 0.55% and Nasdaq 100 futures dropped 0.82%. European equities also moved lower, with the FTSE 100 down 0.44%, France's CAC 40 off 0.54% and Germany's DAX 30 lower by 0.60%. Oil prices climbed, with WTI futures up 3.38% at $87.239 a barrel and Brent futures 2.85% higher at $94.228. Spot gold fell 1.34% to $4,462.37 an ounce, while spot silver declined 1.12% to $66.23. The U.S. 30-year Treasury yield rose 6 basis points to 5.26%, giving back its gains since the Treasury's buyback announcement. Markets broadly view the dollar as the biggest potential loser if the U.S. increases Treasury buybacks. In technology, SK hynix set a target of extending optical interconnects to memory interfaces through an architecture centered on light, using a photonic interposer to directly connect memory and processors. TSMC has reportedly completed development and validation of its 1.6-nanometer-class A16 process and plans to begin mass production in the fourth quarter of this year; compared with the enhanced 2-nanometer N2P process, A16 is expected to deliver an 8% to 10% performance gain at the same power consumption. Nvidia is reportedly in talks to invest in AI data-labeling company Mercor, a deal that would value the startup at $20 billion and support open-source AI. Michael Burry, known as the Big Short investor, again took a bearish view on Nvidia, saying AI chip company Etched is a serious competitor whose chips offer 10 times higher performance at lower cost.