Megadeals took 87.5% of US venture dollars, and the rest of the market is priced by vintage

PitchBook published its Q2 US VC Valuations report on 10 August. Megadeals took 87.5% of the dollars deployed in the first half of 2026. PitchBook defines those as rounds of $100m or more. AI is the primary driver of that concentration, though the fi...