Venture capital firm Andreessen Horowitz, whose past investments included Airbnb and Coinbase, on Friday announced that it raised over $15 billion for a group of new funds.Why it matters: This is a major boost to the U.S. venture capital market, which just experienced its weakest year for fundraising since 2017.The big picture: U.S. firms secured just $66.1 billion for new funds in 2025, down from $101.3 billion in 2024 and well below the 2022 peak of nearly $223 billion, per preliminary data fr...