a16z: Horizontal B2B trades at 2.7x revenue, 55% of unicorns under 2 years runway
a16z Growth's latest market report shows horizontal B2B software now valued at 2.7x revenue, down from infrastructure's 9.1x. New AI-native startups are scaling at 500% growth while mature B2B slowed to 19%. More than half of unicorns have less than two years of cash runway.