History in the making: A closer look at MarketAxess’ newly launched Opening and Closing Auctions
MarketAxess’ new ‘Opening and Closing Auctions’ – a first for the fixed income market – is aimed at improving price discovery andKat Sweeneyproviding access to unique liquidity for trading US credit through a standardised market-wide auction protocol.With the launch having occurred in November, The TRADE decided to take a closer look at the new offering, delving into both the strategy itself and the potential for real market structure change as a result.Liquidity paramountThe protocol combines real-time pricing and auction matching expertise from Pragma, creating a liquid end of day event, focused on hedging efficiency and solving inefficiencies in bond pricing.Speaking to The TRADE, Kat Sweeney, global head of data and ETF solutions for MarketAxess, asserts that the new protocol addresses a “major market gap”, with the long-term vision being for the auction to become dominant in end of day credit trading.“This is a way for asset managers, hedge funds, dealers to have a central point – same time, same place, same bonds – knowing when and how they can find liquidity.” This, of course, requires industry buy-in – something at the fore of the firm’s planning, with a collaborative design having been developed with the market in order to ensure efficacy and compliance. This has been key to the development of the auction protocol, with input from the buy-side and sell-side in particular over the past three years crucial. Discussions with all corners of the industry having shaped the design based on the principal market needs. MarketAxess’ advisory group includes names such as: BlackRock, DWS, State Street investment Management, and AllianceBernstein.“As the US Credit market grows, it is vital that participants innovate and deliver new liquidity solutions to investors. The Auction protocol represents a step forward in advancing market structure and puts the public bond market on its front-foot in competing with other capital markets,” George Catrambone, head of fixed Income Americas at DWS Group, tells The TRADE.Read more: MarketAxess to launch first fixed income opening and closing auctionsSpeaking to how the offering is set to slot into the wider markets, Sweeney highlights how equities activity plays into plans for the fixed income sphere. “We have seen this before in the equity markets – the growth of indexation and ETFs coupled with the growth of systematic market makers saw a move on trading towards the close. Now the closing auction in equities is about 10% of total trading volume [and] the suction plays an important role for both the buy- and sell-side of the market. “In credit, we are facing the same backdrop just at an earlier stage in the cycle. ETFs and credit futures are becoming a larger part of the market, and we are seeing more systematic liquidity provision from the traditional dealers and market making community.”The protocol integrates diverse liquidity sources, aligning with client trading patterns and improving benchmark tracking, however when it comes to the markets’ biggest concern, Sweeney confirms that completion is front of mind.“We have to make sure the auction is a liquid event […] Benchmarks are changing and more trading is going toward the close. Traders are keeping flow open later because that’s where they benchmark. “If traders have a high degree of confidence on completion and knowing where end of day values will be set, they are willing to make larger markets across ETFs, cash credit and futures. I call this the bands of arbitrage.”Looking aheadDelving further, Sweeney explains that there is a wealth of benefits which could come from addressing what the credit market lacks – a universal closing price for the cash bonds that would then be used for all macro products, like ETFs and futures.“The data from a closing auction can be used by end of day evaluators, like S&P Global, to set the end of day price or be a significant input into setting the price. That would be so powerful and would improve the overall market liquidity.” She further adds: “This can be used as a price for internal crossing […] every single asset manager brought it up without me even prompting them.” Speaking about the launch of this new auction protocol recently, Daniel Veiner, head of markets at BlackRock, affirmed that the offering “represents a meaningful advancement in the modernisation of the bond market.” He added: “These Auctions will improve price discovery and offer investors increased transparency in-line with the continued growth of electronic trading. As fixed income markets continue to evolve, we’re committed to supporting solutions that better serve investors.” Read more: BlackRock promotes from within for new head of markets Addressing the industry on the MarketAxess earnings call in November 2025, Chris Concannon, chief executive, emphasised that the most important aspect of the strategy around the auction is to support the growing indexation of the fixed income market – and is subsequently the key talking point with the firm’s client partners. “In US investment grade volumes, the last hour of the last day of the month, 25% of that day’s volume is done in that last hour. So, we’re seeing aggregation of activity moving to closer to the close.“On a normal trading day, we’re now seeing almost 15% of total volume now within the last hour of the close as well. There’s been a clear trend line where much of the bond market is moving closer and closer to the closing time of the day.”Looking toward the future, Sweeney concludes that as more and more systematic credit comes to market, the players in this sphere are set to appreciate an auction – equal footing for all. “Within the next couple of years, this could be the dominant protocol in the market. We want to make this not just a protocol on our platform, but something that’s market-structure changing, and the wheels are already in motion. It can start slow, but we’re now in the beginning of the snowball phase.”Offered at the beginning and end of the trading day, the protocol specifically relates to US high-grade and high-yield bonds on MarketAxess’s X-Pro trading platform.The post History in the making: A closer look at MarketAxess’ newly launched Opening and Closing Auctions appeared first on The TRADE.
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