Invest1 publisher2 min readPublished
Horizontal software sells for under a third of infrastructure's revenue multiple in a16z's September data
a16z's September State of Markets deck puts horizontal software at a median 2.7 times trailing revenue, against 9.1 times for infrastructure. Its own growth data held steady through the selloff, so horizontal founders now raise against a price that fell further than their businesses did.
The Investor · Invest desk
What happened
- JPMAM's first-half 2026 medians in the deck put security and identity at 6.8 times trailing revenue, vertical software at 4.6 and consumer platforms at 4.0, with every category compressed.
- Public software growing 20 to 40% has mostly held around 9 to 13 times forward revenue, while 10 to 20% growers slid to about 4 to 5 times and stayed there.
- About 75% of public software companies are profitable, but only about 30% grow revenue 20% or faster.
- Public software growth has flattened, with the median near 12 to 13% and the top quartile near 20 to 22% after several quarters without further decline.
Compiled by The InvestorSomething wrong?How this is made
Why it matters
- decision Horizontal founders entering a raise or sale must either build a credible infrastructure or vertical case or plan around a 2.7x starting multiple, SaaStr argues.
- constraint Margin work buys little valuation at scale, since SaaStr reckons lifting growth from 15% to 22% is worth more to enterprise value than almost any margin gain this year.
- exposure If SaaStr's 55% runway figure holds, more than half of unicorns must raise or reach breakeven within two years against public multiples that compressed in every category.
- contradiction a16z titles its Stripe slide as B2B accelerating into the selloff, yet young companies grew 500 to 600% while mature B2B bottomed near 19%, so the acceleration belongs to the young cohort.
Divide 9.1 by 2.7 and a dollar of infrastructure revenue is worth about 3.4 dollars of horizontal app revenue at the first-half 2026 medians JPMAM compiled for a16z Growth's 90-slide September deck [1][2][1]. Against a $1bn enterprise value, the horizontal median implies roughly $370m of trailing revenue and the infrastructure median about $110m [2]. SaaStr's explanation is that the market is pricing defensibility, on the assumption that if an AI-native competitor could plausibly rebuild a horizontal app, someone will [4].
The businesses underneath held up better than their prices. Growth stopped falling across the percentiles the deck tracks [7]. a16z calls the fundamentals "remarkably stable" through the SaaSpocalypse selloff, and revenue per employee is still climbing [8]. SaaStr wrote that "The stock prices moved more than the businesses did." [15]
The gap between price and fundamentals can close from either side. Private rounds for horizontal companies can reprice down to the public median. Public prices can drift back toward the 4.6x that vertical software fetches [3] if AI-native rebuilds arrive more slowly than the multiple assumes. Or horizontal companies can recast themselves as infrastructure or vertical businesses, at least in how they pitch investors [11].
I'd expect the first outcome for horizontal companies growing in the low teens, since they sit in both of the deck's discounted groups. At the midpoints of its forward-revenue ranges, a 20 to 40% grower is priced at about 2.4 times a 10 to 20% grower [4][5]. a16z's summary is that software "traded growth for profitability" [12], and SaaStr's view is that profitability is now common enough among public peers to earn no premium [13][6]. The counter-case is the deck's own stability data: if median growth holds and the share losses that a 2.7x multiple anticipates fail to show up, the public discount is what gives [7][2].
The down-round case rests on the runway figure, the thinnest part of the record [10]. The SaaStr summary does not include the slide's definition of runway, its unicorn sample, or any count of down rounds behind the 55% headline number [10]. If the figure holds, the horizontal unicorns in that majority would raise against public comparables at 2.7x [2][10].
The thesis is wrong if the horizontal median climbs toward vertical's 4.6x while median public growth stays near 12 to 13% [3][7], or if unicorns short of runway raise at flat prices [10].
What to watch
- How a16z defines runway and which unicorns it counted behind the 55% figure, and whether any down-round counts accompany it.
- Whether mature B2B growth in the Stripe data climbs off its roughly 19% floor, the first sign the young-company surge is spreading to older firms.