Rob Flatley and the business that came back

In November 2024, Rob Flatley bought back a piece of his working life. TS Imagine, the trading and risk software company he leads, acquired PrimeOne from S&P Global. Flatley had founded PrimeOne in 2011 inside CoreOne Technologies, then sold the parent business in 2015. Nine years, several corporate nameplates and one new company later, he was working with the PrimeOne team again.

There is something pleasingly circular about the transaction. Finance likes an exit. Founders are photographed beside the number, the buyer issues a statement, and everyone is encouraged to turn the page. Flatley’s story allows for a less tidy possibility: sometimes the next chapter contains people and software you have already sold.

He described the acquisition as a chance to “reunite with the PrimeOne team”. The word matters. A software business travels with its customers, technical habits and accumulated knowledge. Buying the product also meant bringing familiar expertise into a company with a different set of adjoining tools. The reunion had a practical purpose.

The interview with a second job running

Years before that reunion, Flatley gave a journalist an unusual demonstration of divided attention. During a meeting at his Banc of America Securities office, he discussed the bank’s approach to volume-weighted average price, or VWAP, while making trades in his own portfolio. Andrew Delaney later recalled the encounter when writing about CoreOne’s sale.

The anecdote catches Flatley at the intersection where he has spent much of his career: explaining how a trading system works while using a market himself. VWAP is a benchmark for assessing an execution price against the volume-weighted average over a period. A conversation about it can be an abstract discussion of algorithms. In that office, the visitor also got a working example of someone keeping an eye on a position.

Delaney remembered him as a salesman, too. That combination is useful context for a career that crosses software vendors and the financial institutions buying their products. Flatley has occupied both sides of the meeting table, with the accompanying advantage of knowing which questions tend to arrive after the demonstration ends.

An accountant takes the electronic route

Flatley graduated from the University of Iowa in 1985 with a BBA in accounting. His later career included managing director positions at Bank of America Securities and Deutsche Bank Securities, as well as software development and quantitative trading. The accounting degree is an appealing detail in a story about systems that must eventually agree on what happened.

By September 2008, he was discussing Deutsche Bank’s autobahn Equity electronic trading platform in an industry interview. Electronic execution was already part of his working vocabulary well before the founding of TS Imagine. He had experience inside banks where market structure, technology and the business of serving trading clients met every day.

His résumé also includes a stint at New York Digital Investment Group. From 2018 to 2019, he served as president, chief financial officer, chief operating officer and a director. That is a considerable collection of titles for one business card. It also puts a specific institutional digital-assets role into a career often summarized simply as financial technology.

Four names ending in One

CoreOne, founded by Flatley in 2010, assembled services around regulatory reporting, index data, data management and prime brokerage. Its products had a family resemblance in their names: RegOne, DeltaOne, VistaOne and PrimeOne. Markit agreed to acquire the company in 2015 in a transaction valued at approximately $200 million.

The number makes a convenient milestone. The product mix explains more. These were services around the records, obligations and financing that make institutional trading possible. A trade needs data before it can happen, reporting after it happens, and arrangements for the assets and exposures it creates. CoreOne operated in those less photogenic parts of finance.

Flatley then joined Markit to run its equities businesses globally. The sale therefore led to another operating role. A founder could celebrate a transaction and still have customers expecting the service to work the following morning. Corporate finance provides the punctuation; software operations supplies the next sentence.

Two businesses, one unfinished task

In May 2021, Francisco Partners announced the combination of TradingScreen and Imagine Software to form TS Imagine, with Flatley as CEO. TradingScreen brought execution and order management. Imagine brought real-time risk and compliance capabilities. Together, they offered a way to connect the trading decision with the portfolio and its consequences.

The new business began with approximately 400 employees, 10 offices and 500 institutional customers. Flatley was joining an existing population of specialists and users. A merger of mature software companies comes with a demanding constituency: customers who already know how their systems behave and have little appetite for an interruption while the organization finds its feet.

The investor relationship had been waiting its turn. Francisco Partners’ Peter Christodoulo said at the announcement that the firm had known Flatley for nearly a decade. The appointment joined an established executive relationship to an integration problem with clear commercial stakes: help institutions connect work that had been handled across separate products.

“We just execute.”

Rob Flatley, on moving from planning to delivery

When asked in 2023 about his strengths, Flatley emphasized familiarity with the jobs across a technology company. His answer was about understanding what teams were trying to accomplish and recognizing the pitfalls. The attraction of that experience, as he described it, was less time spent debating decisions that could already be made.

A trophy, then back to the product

Flatley received the 2023 US Markets Choice Award for CEO of the Year, accepting it at Tavern on the Green in New York with colleagues. The occasion coincided with TS Imagine’s second anniversary and the launch of TS One. Earlier that year, the company had introduced RiskSmart X for banks and prime brokers.

TS Imagine reported a 72% year-on-year increase in recurring bookings in its first full year as a combined business. Bookings describe commercial commitments, rather than money already recognized as revenue. Even with that distinction, the figure provides a useful marker of the early integration period: customers were signing up while the combined product business was taking shape.

In the award interview, Flatley’s answer about personal achievement turned toward colleagues developing into leaders. He described satisfaction in introducing people to the industry and seeing their careers prosper. It gives the PrimeOne reunion a human context. The people who know a difficult system are part of what a founder has built.

The familiar team gets a larger room

PrimeOne’s 2024 return fitted that wider product plan. The business supplied operational risk management tools for prime brokerage; its leader, EJ Liotta, joined TS Imagine’s executive team. Flatley brought back a business he understood, with expertise that could sit alongside trading and real-time risk management.

The expansion continued in September 2025, when TS Imagine announced LoanSmart following the purchase of a securities lending platform from a bank. Stock loans, repurchase agreements and collateral management joined the story. Each concerns the financing and assets around a position, extending the company’s work beyond the moment a trader presses a button.

For Flatley, this was another expression of his stated aim to build an integrated platform that addresses costly legacy systems and operational inefficiency. The sequence gives that ambition some substance: combine trading and risk, add prime brokerage, then broaden the financing tools available around them.

What happens when the answer is yes?

By 2026, Flatley was writing about prediction markets. His interest centered on the consequences of contracts that resolve around specific events. A rate decision or an economic release can touch positions across several desks. His argument was that institutions need to see those connections, including when losses and demands for cash might arrive together.

In February, he set out a risk manager’s question in terms of the outcomes a portfolio faces, their resolution times and their combined effects. That perspective makes timing part of the exposure. A tidy end-of-day report is of limited comfort if several obligations have already arrived during the afternoon.

In August, TS Imagine integrated prediction-market data into its platform. Institutional users could connect event probabilities to portfolio exposures and existing analytics, including stress testing and scenario analysis. The step turned an area of Flatley’s public writing into a product capability, while leaving the probabilities as signals to assess.

The next argument starts with the data

September 2026 brought TSIQ, TS Imagine’s AI platform for capital markets. The company described a five-year, $100 million investment behind the launch. Its design connects data with financial concepts and business logic, so users can seek explanations and recommendations inside institutional workflows while retaining human oversight.

Flatley’s launch essay spent time on a familiar nuisance: orders, positions and risk information sitting in separate systems. He described using TSIQ himself every day. The promised convenience depended on years of organizing the information beneath the interface. For a founder whose career has passed through data services, trading and prime brokerage, the sequence has a recognizable logic.

PrimeOne’s return remains the revealing episode. It puts a person, a team and a piece of software on both sides of an exit. Flatley sold a business, went on working, formed another company and found a place for that earlier work within it. The deal closed. The work had further to travel.