Something unprecedented just happened in venture capital. Investors deployed $297 billion into startups in the first quarter of 2026, according to Crunchbase data released this week. That is not a typo. One quarter. Nearly $300 billion. Up 150% from the same period last year.

To put that in perspective: Q1 alone accounted for nearly 70% of ALL venture capital spent in 2025. The quarterly total also exceeds every full-year VC investment figure prior to 2018. The startup economy did not accelerate. It detonated.

And the driver is not subtle. AI startups captured $239 billion of that total, or 81%. In Q1 2025, AI accounted for 55% of global VC. In twelve months, the concentration went from dominant to near-monopoly.

Four Companies, $186 Billion

The numbers get wilder when you zoom in. Four of the five largest venture rounds ever recorded closed in Q1: OpenAI ($122 billion), Anthropic ($30 billion), xAI ($20 billion), and Waymo ($16 billion). Combined, those four raises account for 64% of all global venture investment in the quarter.

Read that again. Four companies. Sixty-four percent of global venture capital. The Crunchbase Unicorn Board gained $900 billion in value during the quarter alone.

America Is Eating the World (Again)

US-based companies raised $247 billion, or 83% of global VC. That is up from 71% in Q1 2025, which was already well above historical norms. China came in second at $16.1 billion. The UK third at $7.4 billion. Everyone else is fighting for scraps.

Late-stage funding exploded to $244 billion across 582 deals, with $232 billion flowing to companies raising $100 million or more. Early-stage was up 38% year-over-year to $40.6 billion. Even seed climbed 30% to $12 billion, though deal count actually fell 31%, meaning investors are writing bigger checks to fewer companies.

The Uncomfortable Question

Here is the thing nobody in Sand Hill Road wants to say out loud: when 81% of all venture capital flows into one sector, and 64% of that goes to four companies, you are not looking at a healthy market. You are looking at a bet. The biggest, most concentrated bet in the history of technology investing.

If AI delivers on even half its promise, these numbers will look prescient. If it does not, Q1 2026 will be remembered the way Q1 2000 is remembered for dot-coms: the quarter everyone lost their minds.

Meanwhile, the IPO market stayed frozen. Only four US companies went public. China listed 13. The exits are not matching the entries, and that pressure has to go somewhere. First reported by Crunchbase News.