MSCI Inc. and MarketAxess Holdings Inc. have agreed to enter into a strategic collaboration to create innovative portfolio analytics solutions and co-branded fixed income indexes incorporating MarketAxess liquidity data.MSCI plans to integrate MarketAxess' AI-powered pricing and liquidity measures, including Relative Liquidity Score and Tradability, into MSCI's portfolio construction analytics tools and its fixed income indexes. MarketAxess plans to leverage MSCI's ESG ratings to identify and create more liquid and sustainable fixed income portfolios for its global institutional clients.