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ARCHIVE RESTORED · OFFLINE SINCE 2013

The project that started it all.

Before there was Robinhood, there was Chronos Research — the company Vlad Tenev built, made profitable, and then shut down on purpose, because the thing he wanted to build next could not exist while it was alive.

4Products shipped
<5µsWire-to-wire
2013Went dark
1Decision
Read the record
01 — The Precedent

Every giant has a name it left behind.

NVIDIA was supposed to be NVision. They lost the name to a toilet paper manufacturer and had to invent a new one on the way out the door. The market has never stopped repeating that story, because an origin name is the closest thing a company has to a birth certificate — proof it was something else first.

Robinhood has one too. And Robinhood's is better, because nobody took the name away from Vlad Tenev. He buried it himself.

Case file 01 · Semiconductors
NVISIONNVIDIA
Forced

A trademark already belonged to someone else. The name changed; nothing else did. Same founders, same chips, same roadmap — a paperwork accident that became folklore.

Case file 02 · Retail brokerage
CHRONOS RESEARCHROBINHOOD
Chosen

No conflict. No failure. No buyout. A working, revenue-positive company was deliberately shut down so that a completely different one could be built in its place. Not a rename — a sacrifice.

NVIDIA lost its first name.
Robinhood paid for its second one.
02 — The Record

What actually happened, in order.

None of this is invented. Every line below is public record — filings, press archives, and Tenev's own interviews. Read it once and the whole Robinhood origin story reorganizes itself.

2010 · South San Francisco
CELERIS — the first attempt
Two Stanford math-and-physics guys drop out of a PhD program and start building high-frequency trading software. It never takes off commercially. Tenev later describes the period simply: he worked every hour he wasn't eating or sleeping, and poured his heart into it.
Outcome — abandoned
2009–2011 · Palo Alto → New York City
CHRONOS RESEARCH — the second attempt
New company, harder product: ultra low-latency trading infrastructure sold directly to banks and hedge funds. Registered as Chronos Research, LLC at 316 High Street, Palo Alto. Its own site put the mission bluntly — systems "used to perform latency arbitrage in the world's most competitive markets" — under a tagline that explains the whole arc: Born in Silicon Valley. Battle tested on Wall Street. This time the customers actually pay.
On the SEC filings — Vladimir Tenev · Baiju Bhatt · Nicholas Benavides · founding date disputed: the company's own site said 2009, later profiles say 2011
August 2, 2011
ZARDOZ ships
The flagship launches on Tilera hardware, hosted on CFN Services' Alpha Platform, with total wire-to-wire latency under five microseconds — plus a backtesting environment and a compliance suite. Three products sit underneath it: Brutalis (market data in, under 1.5µs), Eternis (orders out, under 4µs), and Colossus (SEC 15c3-5 risk checks, 1.5µs). Reportedly named after the 1974 Sean Connery film.
Naming convention — deranged, on purpose
2012
It works
Inside roughly a year, Chronos Research is doing a few million in revenue selling speed to the fastest firms in the world. That August it also files with the SEC to raise on top of it — small money, not venture rounds. By any normal measure, this is the part of the story where the founders keep going.
Status — revenue-positive, hiring, running campus recruiting
April 18, 2013 · The termination
CHRONOS GOES DARK — ROBINHOOD IS FOUNDED
Tenev and Bhatt walk away from the working company to build a brokerage where ordinary people trade for free. Chronos Research stops selling. Its site is captured alive for the last time in May 2013; by 2015 the address answers with nothing but a 404. Zardoz was never opened up and never spun out — it simply stopped existing outside the firms that had licensed it.
Cause of death — voluntary
2013 → 2021
The thing it was traded for
Commission-free trading goes from heresy to industry standard. The entire retail brokerage industry is forced to follow. Robinhood lists on the Nasdaq as $HOOD. Not one line of the founding story mentions the company that was killed to make room for it.
Receipt — the pivot was correct
Now
The name comes back
The original address — chronosresearch.com, no hyphen — is gone for good. What survives is in the Internet Archive: the tagline, the four product pages, the latency numbers, all of it still readable. We rebuilt the whole thing from those pages, and put it back up under a new name.
Status — reconstructed from the archive
03 — The Sacrifice

Chronos wasn't failing.

That is the part the story always skips. There was no down round, no lawsuit, no cofounder blowup, no market that moved against them. Chronos Research was bootstrapped, profitable, and growing. It was the most successful thing either of them had ever built.

Tenev killed it over a question he could not answer well enough: if he kept doing this for thirty or forty years, would he be proud to tell his grandchildren about it? Would he want it to be his legacy?

Chronos didn't really do that for me. But Robinhood did.
Vlad Tenev · on the decision to abandon Chronos Research

He shut it down. Robinhood Markets was founded on April 18, 2013. The Chronos site went dark that year and stayed dark. Everything that came after — free trades, the app, the meme-stock era, the IPO — sits on top of a company that was buried alive to make room for it.

04 — The Turn

He sold the advantage. Then he spent a decade taking it back.

Chronos Research existed to sell speed to the people who already had everything: banks, hedge funds, and high-frequency shops paying real money for microseconds no ordinary investor would ever see. That was the entire business. Tenev and Bhatt built the sharpest version of the edge and rented it out by the microsecond.

Robinhood was built on the exact opposite premise — that Wall Street firms paying almost nothing to execute a trade while charging retail investors a commission on every buy and sell was a bug in the system, not a fact of life.

The same two people built both sides of that trade. Chronos is where Vlad learned precisely how the advantage worked, who paid for it, and where it was hidden — which is the only reason he knew where to aim.

Robinhood isn't the opposite of Chronos Research.
It's what Chronos Research learned.
05 — The Artifacts

What was left behind.

Four products, all still described in their own words in the Internet Archive. The quoted lines below are Chronos Research's own marketing copy, as it stood in 2011.

ARTIFACT 01
ZARDOZ
The flagship platform
"A trading ecosystem that functions as a turn-key high frequency trading firm." Under 5µs wire-to-wire, on Tilera hardware. Packet passing between threads in under 100 nanoseconds.
ARTIFACT 02
BRUTALIS
Market data · in
"Just what the name suggests: a brutally fast ticker plant." Normalizes feeds and rebuilds the order book in under 1.5µs, wire to strategy.
ARTIFACT 03
ETERNIS
Orders · out
The order management system, "fondly named Eternis" — under 4µs strategy to wire, with the risk check welded directly into it.
ARTIFACT 04
COLOSSUS
The regulator's gate
SEC 15c3-5 compliance in an average of 1.5µs. Risk managers tuned the limits through, of all things, an iPad-friendly web interface.
Vlad Tenev
Vladimir Tenev
Co-founder, Chronos Research
Co-founder & CEO, Robinhood
Baiju Bhatt
Baiju Bhatt
Co-founder, Chronos Research
Co-founder, Robinhood
NB
Nicholas Benavides
Named on the Chronos SEC filings
Later at Robinhood
Shown as historical record. None of these people are affiliated with, involved in, or endorsing this project in any way.
06 — The Evidence

Check it yourself.

A story like this is only worth telling if it survives being looked up. So here is every load-bearing claim on this page, with the document it came from. Where the sources disagree, we say so instead of picking the better-sounding one.

Primary documents
PrimaryChronos Research, LLC — registered at 316 High Street, Palo Alto CA 94301. Tenev, Bhatt and Benavides are all named on the filings.
PrimaryThree Reg D filings in 2012 — offerings of $750K then $1M, with amounts actually sold. This is why this page does not claim the company took zero outside money.
PrimaryThe tagline, the mission, and "latency arbitrage in the world's most competitive markets" — Chronos Research's own homepage.
PrimaryZardoz as "a turn-key high frequency trading firm", sub-100ns thread passing, the backoffice suite — the product page itself.
PrimaryBrutalis, "a brutally fast ticker plant", under 1.5µs wire to strategy.
PrimaryEternis — order management, under 4µs strategy to wire.
PrimaryColossus — SEC 15c3-5 risk checks in ~1.5µs, tuned from an iPad-friendly interface.
PrimaryThe site was alive in May 2013 and answering 404 by late 2015. That is the shutdown, visible in the crawl record.
Press & profiles
PressZardoz launch, 2 August 2011: Tilera hardware, CFN Services' Alpha Platform, "total wire-to-wire latency of less than five microseconds", backtesting and compliance tooling.
PressCeleris (2010, South San Francisco) never took off. Chronos reached a few million in revenue in about a year. And the quote about his grandchildren — the reason all of this ended.
PressRobinhood founded 2013; commission-free trading becomes the industry standard; Nasdaq listing as $HOOD.
PressNVIDIA was going to be NVision, until they found a toilet paper maker already held the trademark. The precedent this page is built on.
Where the record disagrees with itself
DisputedWhen was Chronos founded? Its own company-history page said 2009. Later profiles of Tenev put it in early 2011, after Celeris. We show the range rather than pick one.
Disputed"Zardoz was named after the 1974 Sean Connery film." Widely reported, and the film is real — but we have not found Tenev or Bhatt saying it themselves. Treat it as reported, not confirmed.
DisputedThe exact retail commission Robinhood undercut. Versions of this story quote $7, $8, $10. The sourced version is structural, not a number: institutions paid almost nothing per trade while retail paid a commission on every order.
07 — The Revival

We're bringing the good old days back.

Chronos Research is what Vlad built long before Robinhood.
He sacrificed Chronos Research to build Robinhood.
Now we bring the good old days back.

This is not a product, a company, or a comeback attempt. It is a community holding onto the one part of the Robinhood story nobody bothered to keep: the name that got buried, the platform that never shipped, and the decision that made everything else possible.

Every origin story eventually gets its ticker. This one is ours.

Contract — pending deployment
Ticker
$CHRONOS
Network
Robinhood Chain
Supply
1,000,000,000
Tax
0 / 0
Contract address — dropping soon