A bond market the size of the planet, still run on spreadsheets.
It is past ten at night in New York. Dylan Parker has just finished dinner with one of the most sought-after investors in fintech. Most founders would call it a night. Parker goes home, changes, and heads out for an hour-long run. The investor, Index Ventures' Jan Hammer, would later cite that detail as a reason he wrote the check.
That is the texture of the person running Moment, the company he calls the operating system for fixed income. Parker is the co-founder and CEO. His title is ordinary. His target is not: the $150-trillion-plus bond market, an asset class roughly half again as large as all global equities combined, and one that - astonishingly - was until very recently navigated with spreadsheets, chat threads, and phone calls.
Moment is the AI operating system for investment management. It unifies the parts of the trade that used to live in a dozen disconnected tools: sourcing, execution, portfolio construction, research, risk, and compliance. Firms managing trillions of dollars use it to fire off thousands of trades in seconds and to flag compliance problems in real time across millions of accounts. By mid-2026, the assets monitored on the platform had climbed past $10 trillion - up from about $300 billion just eighteen months earlier.
The outsider's advantage
Parker did not grow up steeped in bonds. He studied at Harvard, where he met the two people who would become his co-founders, Ammer Soliman and Dean Hathout. The three were friends working across math, engineering, and computer science. After graduation, they landed at Citadel Securities, one of the most sophisticated trading firms on earth, and helped build its first automated credit desk. Parker also spent time at Jane Street. He arrived in fixed income as a quantitative researcher, not a lifer.
He credits that gap as an edge. Not knowing how bonds had always been traded meant he could see the inefficiencies that veterans had long ago filed under "that is just how it works." When you have never accepted the workaround, the workaround looks like an opportunity. He watched the most advanced firms operate with precision while the rest of the market limped along on manual process, and the contrast did not read as normal to him. It read as a market waiting to be rebuilt.
From credit desk to category
In 2022, the three friends left to build Moment. The pitch was deceptively simple: take the automation that elite desks kept to themselves and turn it into infrastructure anyone could plug into. Where electronic trading had digitized parts of the bond market, true automation had barely penetrated the core workflows. Traders still bounced between fragmented platforms. Portfolio managers still lived in Excel. Compliance still happened over the phone.
Moment's answer was to treat fixed income as one connected system rather than a chain of handoffs. The platform integrates and automates every layer of the workflow, and increasingly does it with AI agents - software that can construct portfolios, scan for opportunities, monitor for compliance issues, and route and execute trades. In 2024 the team brought on Anish Karyat, their former manager from Citadel and a fifteen-year Jane Street veteran, as Chief Markets Officer. The band, in other words, got back together.
The market noticed. Moment signed up firms that are household names in American wealth management: Edward Jones, LPL Financial - the largest independent broker-dealer in the country, with more than $2 trillion in assets - and Hightower Advisors, along with fintechs building on top of its rails. These are not pilot customers kicking tires. They are institutions standardizing on Moment as core plumbing.
The money follows the metrics
In July 2025, Index Ventures led a $36 million Series B, with backing that read like a fixed-income who's-who. Less than ten months later, in May 2026, Index came back to lead again - a $78 million Series C joined by Andreessen Horowitz and Avra. That brought total funding to $134 million. Index Ventures backing the same company twice inside a year is its own kind of signal.
Parker's framing for what comes next is about agency in the most literal sense. The largest institutions, he argues, already know they need to deploy AI agents into their workflows. What has been missing is somewhere to run them that does not blow up. Building that somewhere is the whole game.
How he builds
Ask Parker about teams and you get a philosophy that explains the late-night runs. He believes small groups of exceptional people can out-build organizations ten times their size. He hires for the kind of person who will buckle occasionally under pressure but, far more often, will do the thing that both they and he assumed was impossible. It is a high bar dressed as a compliment, and it is the operating principle behind a company punching well above its headcount.
There is a quiet irony worth savoring. Parker rang the bell at the New York Stock Exchange - the cathedral of the open-outcry trading floor - on behalf of a company whose entire purpose is to make that floor's manual rituals obsolete. He is not nostalgic about the old machinery of markets. He is busy replacing it, one automated workflow at a time, for the firms that move the world's money.
The bet underneath all of it is unglamorous and enormous: that the largest, oldest, least-digitized corner of finance is exactly where the most value is trapped. Equities got their software decades ago. Fixed income, bigger and slower, is only now getting its turn. Dylan Parker intends to be the one who shows up with the keys.