Etched hits $21B on a $700M round after Jane Street installs its first rack

The inference-chip startup doubled in valuation 26 days after its Series C, with quant giant Jane Street leading the round and taking delivery.

Etched closed a $700 million round today at a $21 billion valuation, with Jane Street leading the raise and simultaneously taking delivery of the startup’s first production rack. The pairing of check and install is the news; the valuation is the vibes.

The pace is what TechCrunch called “jaw-droppingly fast.” Etched was worth $5 billion in December. Its $300 million Sequoia-led Series C closed on July 23 at $10.3 billion. Twenty-six days later, that number has doubled. Cumulative funding now sits at $1.9 billion.

Jane Street was already in the cap table alongside Hudson River Trading, Jump Trading, and Two Sigma, so the quant-desk convergence around a single inference-silicon bet is no longer coincidence. It’s a thesis. The firm’s statement in Etched’s release says its team “tested the chip and are pleased with the early results” and that the hardware “delivers the precision we will need to support our most demanding workloads.” Quant shops don’t typically volunteer marketing copy. That they did here’s the signal.

The technical story underneath the money is aggressive. Etched emerged from stealth in June with more than 400 employees, first-pass silicon on TSMC’s N4P node, and, per the Wall Street Journal, test chips running inference workloads 44 days after receiving them from TSMC. Industry standard is roughly six months. By June the company had booked over $1 billion in contracts. COO Robert Wachen has told TechCrunch that investors are focused on two purpose-built components accelerating the prefill and decode stages, wired to a shared memory pool at low latency. The systems support DeepSeek, Qwen, and non-transformer architectures like Mamba, which is Etched hedging against its own original transformer-only bet.

Michael Burry called Etched “serious competition for NVDA.” Nvidia closed down 2.24% at $219.97. One rack shipped, and the incumbent’s market cap noticed.