Two Sigma

Two Sigma

Quantitative finance firm building predictive models

Overview

Two Sigma is a financial sciences firm that uses data analysis, rigorous inquiry, and invention to tackle complex problems in investment management, securities, private equity, insurance technology, and venture capital. Its product approach centers on building sophisticated predictive models powered by extraordinary computing power and vast data. Modelers and engineers test ideas with information and iterative improvement to drive progress. Compared with many peers, Two Sigma differentiates itself through a data-driven, model-centric investment process that relies on large-scale computing and extensive datasets rather than relying on traditional methods alone. The company aims to solve the toughest challenges in its fields and advance investment outcomes by continuously refining predictive models through experimentation.

About Two Sigma

Simplify's Rating
Why Two Sigma is rated
B
Rated A on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Data & Analytics

Quantitative Finance

Financial Services

Company Size

1,001-5,000

Company Stage

N/A

Total Funding

$378.2M

Headquarters

New York City, New York

Founded

2001

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Simplify's Take

What believers are saying

  • Bloomberg reported April 6, 2026 that Spectrum rose 2.5% and Absolute Return 3%.
  • Two Sigma’s London office now houses roughly 200 people, enabling more engineering and data science hiring.
  • Official SEC filings show Two Sigma repaid $165 million, reducing client remediation overhang.

What critics are saying

  • Scott Hoffman resigned April 2, 2026, citing persistent governance failures after Overdeck returned.
  • The SEC fined Two Sigma $90 million in January 2025 for ignored model vulnerabilities.
  • Jian Wu’s 2025 SEC case alleges manipulated models caused $165 million client harm, threatening trust.

What makes Two Sigma unique

  • Two Sigma has used generative AI since 2019 and NLP for over a decade, per Mike Schuster.
  • Its London hub expanded to Devonshire Square in April 2026, now supporting over 100 staff.
  • Francesco Maria Delle Fave joined in 2026, bringing Goldman AI leadership into research tooling.

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Funding

Total Funding

$378.2M

Above

Industry Average

Funded Over

0 Rounds

Benefits

Health Insurance

Dental Insurance

Life Insurance

Disability Insurance

401(k) Company Match

Unlimited Paid Time Off

Paid Vacation

Hybrid Work Options

Flexible Work Hours

Tuition Reimbursement

Conference Attendance Budget

Professional Development Budget

Wellness Program

Gym Membership

Home Office Stipend

Company News

Gizmodo
Aug 5th, 2026
AI-Powered 'vishing' attacks reportedly targeted top hedge funds.

AI-Powered 'vishing' attacks reportedly targeted top hedge funds. Turns out rogue AI isn't the only cybersecurity threat to be worried about. By Webb Wright Published August 5, 2026, 3:39 pm ET Reading time 2 minutes Amid all the recent reports of AI systems autonomously going off the rails and hacking into third-party organizations, it's almost easy to forget that human hackers are still out there, experimenting with AI in all kinds of nefarious ways. A new report from Bloomberg, however, is a reminder of just how quickly AI-enabled cybercrime is evolving - and how unprepared the world is to deal with it. According to the report, a litany of high-profile hedge funds, including Citadel and Two Sigma, were targeted by recent voice phishing, or "vishing," attacks, in which AI is used to simulate the voices of actual humans in an attempt to skirt security systems. Several private equity firms were also reportedly targeted. Two Sigma told Bloomberg it caught the attack in time before any of its internal systems were compromised. Citadel declined Gizmodo's request for comment. Point72, another hedge fund included in the attack, did not immediately respond to a comment request. IT experts have been warning for years that the proliferation of cheap, easy-to-use AI tools that mimic human speech or generate other kinds of deepfake content will escalate both the severity of scam attempts and the rate at which they occur. The world got a taste of this in 2024, when an employee at the Hong Kong branch of a multinational company was duped into wiring more than $25.5 million to scammers who had instructed her to do so using AI-generated deepfakes of company employees, including its chief financial officer. AI scams are also being deployed to tip political scales. Last summer, for example, someone (or a group of people working together) used AI to recreate the voice of Secretary of State Marco Rubio and then sent voice messages to foreign diplomats and federal officials. OpenAI also said in a June report that a fleet of scammers, all of whom appear to have been backed by the Chinese government, had been illicitly using ChatGPT to generate inflammatory social media content aimed at fueling Americans' resentment towards data centers, the power cells of the United States' AI industry. All the while, the market pressures of the AI race - combined with a total lack of federal regulation - have been pushing tech developers to build increasingly capable models, including ones designed to imitate human speech. (Such tools are often promoted as "companions" that can alleviate loneliness, even though research has indicated they can sometimes have the opposite effect.) OpenAI's latest voice model, GPT-Live-1, is engineered to imitate subtle nuances of human speech, and, in theory, make interacting with AI feel less awkwardly mechanical. By design, OpenAI's model cannot imitate the voices of real people; that was a lesson OpenAI had to learn the hard way after it received earlier public blowback for releasing a voice model that, to many people's ears, sounded a lot like Scarlett Johansson. This is all to say: Nobody should be surprised that vishing attacks are on the rise. Technologically-enabled scam artistry is a tale as old as time, and AI is arguably the most enabling tool ever invented in that regard. The real mystery is why more isn't being done to build actually effective safeguards into AI systems to prevent them from happening in the first place.

InvestmentNews
Aug 5th, 2026
Point72, Citadel among hedge funds hit by AI vishing attacks.

Point72, Citadel among hedge funds hit by AI vishing attacks. Citadel CEO Ken Griffin. Photo by: Paul Elledge, Public domain, via Wikimedia Commons Hackers used AI voice cloning to target Point72, Citadel, Millennium and other major money managers on Wall Street. AUG 05, 2026 Point72 Asset Management, Millennium Management, Two Sigma Investments, and Citadel were all targeted in a coordinated wave of cyberattacks in recent days, with attackers using AI-powered voice phishing to attempt to extract sensitive data from employees of the Wall Street money managers. According to a Bloomberg report on Wednesday, Point72 informed investors it had been attacked, though the firm's initial review found no client information was stolen. The firm told investors it was still reviewing the incident. Spokespeople for Millennium, Point72, and Citadel declined to comment to Bloomberg. Two Sigma, which manages $75 billion in assets, told Bloomberg it successfully blocked the attempt. The voice fraud is known as "vishing" in cybersecurity terms. "Our security team responded quickly to an attempted vishing campaign targeting Two Sigma and other investment managers, and we have no indication of any impact to our data or our systems," a Two Sigma spokesperson said in a statement. "We continue to monitor the situation closely." Vishing attacks use technology to clone or mimic voices in phone calls, tricking employees into surrendering credentials or granting system access. FINRA has been in contact with member firms about the attempted breaches, according to a person with knowledge of the matter cited by Bloomberg. The regulator launched its Financial Intelligence Fusion Center in March 2026, a secure portal designed to help member firms share fraud threat intelligence and coordinate responses. Several private equity firms were also targeted as part of the same assault, Bloomberg reported. AI lowers the cost of attack The incidents reflect a broader shift in the threat landscape confronting financial services firms. Vinod Paul, president of Align Managed Services, a cybersecurity and IT firm specializing in hedge fund clients, told Bloomberg that AI tools have dramatically lowered the barrier to launching large-scale targeted attacks. "Before they could attack 50 entities in a targeted attack, now they can do 1,000," Paul said. "Hackers can also listen into a phone call and mimic the voice, tone and phrasings of the speakers to create fake calls." Will Wilson, chief executive of Antithesis - a software firm backed by Jane Street - told Bloomberg the AI has restructured cyber attacks. "The terrifying thing about modern-day AI systems is that they have commoditized this and made it possible to execute attacks at scale," Wilson said. "Everybody will have to seriously level up. Otherwise they are going to be in big trouble." In June 2026, Google's cybersecurity unit published a blog post flagging a similar vishing wave targeting law firms and professional services companies, in some cases involving individuals who physically entered corporate offices posing as IT workers. The recent attack on hedge funds unfolded as US authorities were also working to contain separate cyberattacks on water systems in several states, though officials have not confirmed any connection between the two. The attacks add to a string of cybersecurity incidents hitting wealth management and financial advice firms this year. Cyberattacks on RIAs have accelerated throughout 2026 with AI-powered social engineering targeting advisory firms of all sizes. Mega-RIA Mariner recently disclosed a cloud breach impacting nearly 9,000 individuals, and Mercer has faced class action litigation following a separate breach linked to the ShinyHunters attack group earlier this year. Firms targeted in cyber attacks this year have also included Hightower Advisors, Edelman Financial Engines, Beacon Pointe, CW Advisors, Betterment, Pathstone, EP Wealth, Cetera and Ameriprise.

Aivly
Jul 27th, 2026
Why finance pros who skip AI news are falling behind.

Why finance pros who skip AI news are falling behind. July 27, 2026 A portfolio manager at a mid-tier hedge fund recently lost a major client - not because of bad returns, but because a competing firm deployed an AI-driven risk model that delivered real-time scenario analysis the client had been asking about for months. The losing manager had heard about the tool in passing but never followed up. That single gap in awareness cost the firm an eight-figure relationship. This isn't hypothetical. It's the kind of story playing out across finance every week, and it underscores a brutal truth: skipping the AI news isn't just an oversight - it's a competitive liability. The AI revolution in finance is accelerating, not slowing down. Artificial intelligence finance isn't a future trend; it's the present operating environment. JPMorgan's COiN platform has been parsing commercial loan agreements since 2017, but the 2025-2026 generation of tools makes that look quaint. Bloomberg's BloombergGPT, trained on decades of financial data, now powers research workflows at hundreds of institutional desks. Morgan Stanley's AI assistant - built on OpenAI's GPT-4 architecture - helps 16,000 financial advisors surface insights from a library of over 100,000 research reports in seconds. Meanwhile, firms like Citadel and Two Sigma are investing hundreds of millions annually in machine learning infrastructure. The gap between AI-forward firms and everyone else is widening at an exponential rate. If you're not tracking AI news for finances on at least a weekly basis, you're making decisions with an incomplete map of the landscape. What you don't know is already costing you. Consider the tangible consequences of falling behind. Regulatory bodies are moving fast: the SEC proposed new guidelines in late 2025 around AI-generated investment advice and algorithmic trading disclosures. The EU's AI Act, now in enforcement, directly impacts any firm operating across borders. If you missed these developments, your compliance team is already playing catch-up - and the fines for non-compliance aren't trivial. On the operational side, AI tools for finances 2026 are reshaping everything from fraud detection to credit underwriting. Mastercard's Decision Intelligence platform uses generative AI to evaluate transaction legitimacy in under 50 milliseconds, reducing false declines by up to 20%. Upstart's AI lending models approve 27% more borrowers than traditional methods while delivering lower default rates. These aren't marginal improvements - they're structural advantages that compound over time. If your competitors are deploying these tools and you don't even know they exist, you're not just behind on technology. You're behind on strategy, pricing, risk management, and client experience simultaneously. The knowledge gap is widening fast. Here's what makes the problem especially dangerous: AI in finance isn't one story. It's dozens of stories unfolding in parallel across specialties. A CFO needs to understand how AI is transforming forecasting and FP&A. A compliance officer needs to track regulatory AI frameworks. A quantitative analyst needs to monitor breakthroughs in reinforcement learning and alternative data. A wealth advisor needs to know which client-facing AI tools are gaining traction. No single publication covers all of these angles with the depth finance professionals need. General tech news buries finance-specific AI developments under layers of consumer gadget coverage and Silicon Valley gossip. Finance trade publications often cover AI as an afterthought. The result is that staying genuinely informed requires cobbling together insights from a dozen sources - a process that can eat hours every week. * Missed tool launches: New AI platforms for financial modeling, like Runway Financial's AI-assisted forecasting, ship quarterly with features that directly affect how you build projections. * Regulatory blind spots: AI governance rules are evolving across the US, EU, and Asia-Pacific simultaneously, with material implications for cross-border operations. * Talent competition: Firms that demonstrate AI fluency attract stronger candidates. A 2025 Deloitte survey found that 74% of finance professionals under 35 rank "AI-forward culture" as a top-three factor when choosing employers. * Client expectations: Institutional and retail clients alike now ask about AI capabilities during due diligence. Not having answers erodes trust fast. Staying informed doesn't require becoming a data scientist. There's a common misconception that keeping up with artificial intelligence finance means you need to understand transformer architectures or write Python scripts. You don't. What you need is situational awareness - a clear, concise picture of which tools are gaining adoption, which regulations are shifting, and which strategies your peers and competitors are pursuing. The most effective finance professionals in 2026 aren't necessarily the most technical. They're the most informed. They know that Stripe launched an AI-powered revenue recognition tool three weeks before their competitors scrambled to evaluate it. They know that the OCC issued updated guidance on AI model risk management before the compliance deadline, not after. They read the right signal and filter out the noise. Build the habit before the gap becomes permanent. The difference between leading and lagging in finance has always come down to information asymmetry. AI is creating a new layer of that asymmetry - one where the advantage goes to professionals who treat AI news for finances as essential intelligence, not optional reading. The compounding nature of AI adoption means that every quarter you delay, the catch-up cost grows steeper. That's exactly why tools like Aivly.io exist. Aivly delivers a daily AI news digest filtered specifically for your profession, so you get the finance-relevant developments - new AI tools for finances 2026, regulatory updates, competitive moves - without spending hours sifting through generic tech coverage. It takes less than five minutes a day, and it ensures you never lose a client, miss a regulation, or fall behind a competitor because of a story you didn't see. The smartest move in finance right now isn't just adopting AI - it's making sure you never stop paying attention to it. Stay ahead of the AI curve Aivly delivers daily AI news filtered for Finances - no noise, just signal.

Today's Startup News
Jul 23rd, 2026
AI chip startup Etched raises 300 million dollars at a 10.3 billion dollar valuation to challenge Nvidia.

AI chip startup Etched raises 300 million dollars at a 10.3 billion dollar valuation to challenge Nvidia. Editorial Team July 23, 2026 at 5:10 PM UTC Etched, the AI chip startup founded by three Harvard dropouts in 2022, has closed a 300 million dollar Series C funding round at a 10.3 billion dollar valuation, more than doubling its worth in less than a month as demand for its specialized inference hardware continues to outpace what the company can currently supply. The round was led by Sequoia Capital, with participation from Andreessen Horowitz, Jane Street, Diffusion and SK Hynix. According to the company, the financing represents the highest valuation ever recorded for a Sequoia-led Series C round, underscoring how quickly investor enthusiasm for specialized AI hardware has escalated over the past year. From near collapse to a leading Nvidia challenger. Etched was founded in 2022 by Gavin Uberti, Chris Zhu and Robert Wachen, who all dropped out of Harvard and went on to become Thiel Fellows, a program that funds young founders who skip traditional higher education to build companies. The three bonded over a shared conviction that transformer-based AI models would come to dominate the field, and built their company around a bet that general-purpose graphics processing units, the chips Nvidia has built its dominance on, would not remain the most efficient way to run those models at scale. That bet nearly failed early on. In 2023, Etched came close to running out of money entirely, struggling to get investors interested in a company focused on a narrow, specialized approach to AI hardware at a time when the industry's attention was fixed almost entirely on training ever larger models rather than the less glamorous business of running them efficiently once built. A rapid reversal built on inference demand. The turnaround came as the AI industry's center of gravity began shifting from training toward inference, the computational process that occurs every time a deployed AI model receives a prompt and generates a response. Etched's flagship product, a chip system called Sohu, is built specifically for this task, embedding transformer architecture directly into the hardware itself rather than relying on the general-purpose flexibility of a traditional GPU. That specialization, the company argues, allows Sohu to run transformer models with meaningfully greater speed and lower cost per inference than general-purpose alternatives, including Nvidia's own chips. Etched has said its systems are faster, cheaper and more energy efficient than competing hardware, a claim that has helped the company secure more than a billion dollars in customer contracts for its inference systems. Backing from a notable cross-section of investors. Etched's cap table has grown to include an unusually wide mix of financial and strategic investors, including Jane Street, which has invested more than 100 million dollars into the company, along with Hudson River Trading, Two Sigma, Ribbit Capital, Radical Ventures, Primary Venture Partners and Positive Sum. Strategic backing has come from VentureTech Alliance, a fund with ties to chip manufacturer TSMC, positioning Etched closer to the physical supply chain it depends on for chip production. The company has also attracted a striking group of individual angel investors from within the AI research community itself, including Andrej Karpathy, Geoffrey Hinton, Fei-Fei Li, Arthur Mensch and Scott Wu, alongside billionaire investors Peter Thiel and Stanley Druckenmiller. That combination of deep technical credibility and financial firepower has helped Etched move from a company barely on industry radars in 2023 to one of the most closely watched challengers in the AI chip market today. Scaling production to match surging demand. With its new capital, Etched plans to expand production capacity and accelerate customer deployments, building on an 80,000 square foot facility it recently opened near its San Jose, California headquarters specifically to expand prototyping and manufacturing capacity. The company has said demand for its AI inference systems continues to outpace available supply as customers move from evaluating the technology to actually deploying it in production environments. Etched's valuation trajectory has been unusually steep even by the standards of the current AI funding environment, moving from roughly 5 billion dollars in a December 2025 round led by Stripes to 10.3 billion dollars in this latest Sequoia-led raise, with reports suggesting the company may already be pursuing a further round at a valuation approaching 20 billion dollars. That pace of back to back fundraising, each round closing before the previous one has even had time to be fully absorbed by the market, has become an increasingly common pattern among the AI industry's most sought after infrastructure companies. A narrow bet in an increasingly crowded field. Etched's strategy remains deliberately narrow: rather than attempting to compete with Nvidia across the full range of AI workloads, the company is focused entirely on doing one thing, running transformer-based inference, as efficiently as possible. With Nvidia projecting more than 500 billion dollars in cumulative data center sales by the end of 2026, Etched is not positioning itself to replace the incumbent everywhere, but rather to carve out a defensible, high-value niche within a rapidly expanding market. Whether that focused approach can continue justifying valuations rising this quickly, especially for chip systems still in the early stages of full commercial validation, remains an open question facing Etched and the broader wave of specialized AI hardware startups now racing to capture a share of the inference market as it scales alongside global AI deployment.

eFinancialCareers
Mar 26th, 2026
Hedge fund Two Sigma's spacious new office in London makes it Jane Street's neighbour.

Hedge fund Two Sigma's spacious new office in London makes it Jane Street's neighbour. 3 hours ago Quant hedge fund Two Sigma has had its share of controversy in recent years, particularly regarding the squabbles between co-founders John Overdeck and David Siegel. Despite this, the fund posted its best returns of the decade so far in 2025. As it looks to improve further, the fund has found itself a new office in London. Companies House filings show Two Sigma has changed offices to the fifth floor of 7 Devonshire Square, located near Liverpool Street. Devonshire Square's website shows that the fund occupies the floor by itself. It's understood that it will also occupy the sixth floor after undergoing refurbishments. Two Sigma should recognize one of it's new neighbours, Jane Street, which has an office on the same estate, occupying the entirety of 212 Devonshire Square. This might be a fleeting arrangement, as Jane Street is reportedly looking to expand its office footprint in London and is exploring moves elsewhere. Two Sigma used to live in City Tower on Basinghall Street occupying three floors. However, the new office is thought to have a larger square footage of around 20,000 square feet (including the second floor once completed). The office will be able to house roughly 200 people; Companies House accounts for its UK entities showed it had 107 UK employees in 2024 (predominantly engineers), and its website states it still has over 100 people in London. Have a confidential story, tip, or comment you'd like to share? Contact: WhatsApp: http://wa.me/442079977910 (+44 20 7997 7910), Telegram: @AlexMcMurray, Signal: @AlexMcMurrayEFC.88 Click here to fill in our anonymous form, or email [email protected]. Bear with us if you leave a comment at the bottom of this article: comments are moderated intermittently by human beings. Sometimes these humans might be asleep, or away from their desks, so it may take a while for your comment to appear. You must take sole responsibility for comments you post on this site. We will take reasonable steps to weed out anything that we consider to be offensive or inappropriate. The essential daily roundup of news and analysis read by everyone from senior bankers and traders to new recruits. Boost your career. Find thousands of job opportunities by signing up to eFinancialCareers today.

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