

Boxes and Lines
Ronan Ryan, John Ramsay
In today's equity markets, the devil’s in the details. This is a podcast for traders, asset managers, and anyone who wants to understand the machinations, politics, and incentive structures underpinning our shared markets.
With irreverence and insight, IEX’s Ronan Ryan and John “JR” Ramsay hold court on market structure with Wall Street’s most savvy market practitioners, sharing their insiders’ view on how Wall Street really works. You'll never trade the same way again.
With irreverence and insight, IEX’s Ronan Ryan and John “JR” Ramsay hold court on market structure with Wall Street’s most savvy market practitioners, sharing their insiders’ view on how Wall Street really works. You'll never trade the same way again.
Episodes
Mentioned books

Mar 26, 2026 • 12min
That's Odd! -- Boxes and Lines Lite
What is the “best price” and who actually gets to see it? Ronan and JR are talking odd lots (trades smaller than 100 shares) and why they now make up the majority of transactions. Regulatory changes mean that odd lot quotes will be used to compute the NBBO. It’s a deceptively small topic with implications for market transparency and execution quality. Plus: Boston accents, unwanted socks, and Ronan asking at least one “smaht” question.

Feb 18, 2026 • 32min
TD Securities' Reid Noch On What Prediction Markets, Tokenization, and 24/7 Trading Mean for Market Structure
Ronan Ryan and John Ramsey are joined by Reid Noch, Vice President of U.S. Equity Market Structure at TD Securities, for a wide-ranging conversation on three of the most talked-about (and most misunderstood) topics right now. Reid walks through how prediction markets are evolving beyond sports betting, why tokenization is as much a regulatory story as a technology one, and how changes in settlement, liquidity, and market hours could reshape participation across retail and institutional trading.

Jan 28, 2026 • 35min
What the Market Knows Before We Do: Dave Nadig on 2026
Dave Nadig, ETF.com president and researcher who studies ETFs, market structure, and financial innovation. He discusses 2025's record ETF flows and the surge of active ETFs. Conversation covers tokenization and whether 24/7 trading will catch on. They also debate rising retail speculation, prediction markets, and why ETF plumbing looks sturdier than critics fear.

Dec 22, 2025 • 34min
The Better Halves of Boxes and Lines: A Holiday Special!
In this very special holiday edition of Boxes and Lines, Ronan and JR once again hand over the mics to the people who know them best (and roast them best), their spouses. Back by popular demand, Kara Ryan and Nick Buzard join the show for a special holiday edition of Boxes and Lines' spouses interviews. This episode features Nick’s incredible recovery after quintuple bypass surgery, the Ryans’ big Antarctica adventure, UFO sightings, ducks, awful gift-giving, in-law stories, and a hopeful toast to 2026. Settle in, grab a drink, and celebrate the close of 2025 with the Boxes and Lines family.

Dec 12, 2025 • 21min
Boxes and Lines Light: The 2025 Year-End Recap
From the industry’s sprint toward extended hours to retail’s continued dominance to the ongoing debate around tokenization, Ronan and JR are breaking it all down. Stick around to the end for a beautiful "tribute" to their friendship this year.

Oct 2, 2025 • 50min
Breaking the Rules with the Motley Fool's David Gardner
Ronan and JR sit down with David Gardner — co-founder of investor education juggernaut The Motley Fool, host of podcast Rule Breaker Investing, and author of a new book by the same title, Rule Breaker Investing: How to Pick the Best Stocks of the Future and Build Lasting Wealth. From getting booed on The View for making a dud stock pick (that later went 30x). to breaking the mold of buttoned-up Wall Street, David shares why optimism and long-term thinking can go far.

Aug 20, 2025 • 52min
Our 2025 Summer Interns Take the Mic
In this special episode of Boxes and Lines, Ronan and JR sit down with members of IEX’s 2025 summer intern class, mostly incoming seniors in engineering, marketing, finance, and cybersecurity, for a conversation that spans Gen Z in the workplace, what they’ve learned at IEX, and their hopes (and hot takes) on the future of work, tech, and life. Two intern panels, one insightful summer, and at least one spreadsheet created in 5th grade. The kids are alright.

Aug 6, 2025 • 41min
Bingo! With T. Rowe Price’s Mett Kinak
On the latest episode of Boxes and Lines, Ronan and JR welcome back Mett Kinak, Head of Global Trading at T. Rowe Price, for some real talk about market fragmentation, private rooms, and more. Mett also dispels his biggest pet peeve market structure myths, shares his skepticism about tokenizing equities, and pitches two new financial holidays—we'll raise a Bloody Mary to that.

Jul 2, 2025 • 17min
Boxes and Lines Lite: Welcome to the Pennyverse
Subdollar stocks —those priced under $1—now make up nearly half of all share volume in U.S. markets, while contributing a fraction of the notional value (the actual dollar amount being traded). In this episode of Boxes and Lines Lite, Ronan and JR get into why this trend deserves more attention than it’s getting. From wild one-day volume spikes in penny stocks to distorted exchange market share and rebate incentives, they chat about how a handful of ultra-low-priced names are reshaping the trading landscape, and why it’s not just noise.

Jun 24, 2025 • 32min
From the Archives: The Blurring of Burr: Warring Founding Fathers, Treason, and Romance Novels
We’re re-airing one of our most surprising and most popular episodes for you this week -- a deep dive into Aaron Burr from January 2023. This episode is guest-hosted by IEX’s Jayme Abrahamsen and features Andy Kaplan (former Greenlight Capital partner, now CEO of Freedom’s Edge Cider). In a previous episode, they broke down the mythology of Hamilton. This time, they turn the spotlight on his adversary, Aaron Burr. Vice President. Revolutionary War hero. Romance novel star. Duelist. Exile. They explore how Burr’s legacy was rewritten by enemies like Hamilton and Jefferson, how he became a political cautionary tale, and what it says about who we choose to put on our currency and why.


