Tradeweb Launches Muni Sweep, a Session-Based Trading Protocol for the Municipal Bond Market

Tradeweb's wholesale platform already hosts more than 25 sessions weekly across 10 products globally.

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New workflow brings municipal inventory into a defined trading window to support market participants’ efforts to reduce risk tie-up and increase turnover

NEW YORK--(BUSINESS WIRE)-- Tradeweb Markets Inc. (Nasdaq: TW), a global leader in electronic trading across asset classes, today announced the launch of Muni Sweep, a session-based trading protocol for the municipal bond market.

Muni Sweep is a session-based workflow that brings municipal inventory into a short, defined trading window, concentrating interest into a single event so participants can review opportunities, accept relevant interest and compare levels against Tradeweb composite pricing before the session closes. Where traditional bid-wanted workflows can tie up risk for hours, Muni Sweep is designed to bring that down to a matter of minutes – giving market makers a faster, lower-friction way to assess and act on large books of line items.

The municipal bond market has undergone a period of strong activity and continued electronification over the past few years. According to the Municipal Securities Rulemaking Board (MSRB)¹, the market recorded 17.6 million trades in 2025, marking a fourth consecutive record year and a 22% increase year-over-year, and electronic trading market share as reported by Coalition Greenwich has increased from 16% in 2022² to nearly 21% in Q2 2026³. Municipal bond average daily volume (“ADV”) on Tradeweb reached a record high in Q3 2026, with September ADV increasing 40.0% year-over-year to $729 million. Against this backdrop, municipal market makers need faster ways to evaluate large numbers of line items, reduce risk tie-up and turn over positions more efficiently.

Troy Dixon, Managing Director, Co-Head of Global Markets at Tradeweb, said: “Muni Sweep is designed to give market makers a faster, more structured way to manage inventory in today’s market. We’ve already seen this protocol gain momentum across other products on our platforms and bringing it to municipals is a natural next step in how we build for our clients’ businesses. It’s a strong example of how Tradeweb continues to invest in the workflow technology our clients need.”

Market participants can bring inventory to a Muni Sweep session with CUSIP, size and an optional mark yield or price, and Tradeweb provides a composite price, allowing users to quickly review levels, accept relevant interest and commit risk within the session window. The protocol also supports seamless upload of inventory and filtering, sorting and Excel import and export to help users assess large numbers of line items quickly.

Muni Sweep builds on Tradeweb's established experience in the municipal market and workflow tools built for scale, extending to Tradeweb’s retail and institutional ecosystem the same approach that has helped participants manage inventory and balance sheets in other asset classes across Tradeweb's wholesale platform, where more than 25 sessions currently occur weekly across 10 products globally.

About Tradeweb Markets

Tradeweb Markets Inc. (Nasdaq: TW) is a leading global operator of electronic marketplaces for rates, credit, equities, and money markets. Founded in 1996, Tradeweb provides access to markets, data and analytics, electronic trading, straight-through-processing, and reporting for more than 50 products to clients in the institutional, wholesale, retail, and corporates markets. Advanced technologies developed by Tradeweb enhance price discovery, order execution, and trade workflows while allowing for greater scale and helping to reduce risks in client trading operations. Tradeweb serves more than 3,000 clients in more than 85 countries. On average, Tradeweb facilitated more than $3.0 trillion in notional value traded per day over the past four fiscal quarters. For more information, please go to www.tradeweb.com.

Forward-Looking Statements

This release contains forward-looking statements within the meaning of the federal securities laws. Statements related to, among other things, our outlook and future performance, the industry and markets in which we operate, our expectations, beliefs, plans, strategies, objectives, prospects and assumptions and future events are forward-looking statements.

We have based these forward-looking statements on our current expectations, assumptions, estimates and projections. While we believe these expectations, assumptions, estimates and projections are reasonable, such forward-looking statements are only predictions and involve known and unknown risks and uncertainties, many of which are beyond our control. These and other important factors, including those discussed under the heading “Risk Factors” in the documents of Tradeweb Markets Inc. on file with or furnished to the SEC, may cause our actual results, performance or achievements to differ materially from those expressed or implied by these forward-looking statements. Given these risks and uncertainties, you are cautioned not to place undue reliance on such forward-looking statements. The forward-looking statements contained in this release are not guarantees of future events or performance and future events, our actual results of operations, financial condition or liquidity, and the development of the industry and markets in which we operate, may differ materially from the forward-looking statements contained in this release. In addition, even if future events, our results of operations, financial condition or liquidity, and events in the industry and markets in which we operate, are consistent with the forward-looking statements contained in this release, they may not be predictive of events, results or developments in future periods.

Any forward-looking statement that we make in this release speaks only as of the date of such statement. Except as required by law, we do not undertake any obligation to update or revise, or to publicly announce any update or revision to, any of the forward-looking statements, whether as a result of new information, future events or otherwise, after the date of this release.

¹ MSRB – 2025 Municipal Market Year in Review
² Coalition Greenwich – Consolidation and all-to-all trading keep muni e-trading moving forward
³ Coalition Greenwich – Consolidation and all-to-all trading keep muni e-trading moving forward

View source version on businesswire.com: https://www.businesswire.com/news/home/20261103702699/en/

Media contacts:
Daniel Noonan, Tradeweb
+1 646 767 4677
Daniel.Noonan@Tradeweb.com

Savannah Steele, Tradeweb
+1 646 767 4941
Savannah.Steele@Tradeweb.com

Eloise Doolan, Tradeweb
+1 646 767 4921
Eloise.Doolan@Tradeweb.com

Investor contacts:
Ashley Serrao, Tradeweb
+1 646 430 6027
Ashley.Serrao@Tradeweb.com

Sameer Murukutla, Tradeweb
+1 646 767 4864
Sameer.Murukutla@Tradeweb.com

Source: Tradeweb Markets Inc.

Key Terms

cusip technical

A CUSIP is a nine-character alphanumeric code that uniquely identifies a U.S. or Canadian financial security—such as a stock, bond, or fund share—like a Social Security number for an investment. It matters to investors because brokers, exchanges and record-keepers use the CUSIP to match trades, track ownership, settle transactions and pull accurate records, reducing errors and ensuring money and securities go to the right place.

View in glossary

adv financial

ADV stands for Average Daily Volume, which shows how many shares or units of a stock or asset are traded on average each day. It helps investors understand how popular or liquid an investment is—like knowing how many tickets are sold daily for a concert, indicating how much people are buying and selling.