[ by Melanie Gretchen ] The MSRB announced that investors and others can now be notified electronically when a specific bond trades in the municipal market.  The MSRB also announced improvements to municipal market trading statistics that are provided on its Electronic Municipal Market Access (EMMA) website. The MSRB operates the EMMA website as its primary vehicle for disseminating market data and disclosures in support of its mission to promote a free and fair municipal market. Email Alerts. For subscribers, the new trade alerts will provide an end-of-day e-mail when a particular security has traded and is published on EMMA.  This e-mail includes a direct link to trade history on EMMA which provides price information that can assist in the assessment of a security. Currently, EMMA sends investors alerts when disclosure documents - e.g., ratings changes, financial statements - are filed with MSRB by municipal securities issuers.  Now investors can specify whether they want to receive financial- or event-based disclosures, or Enhanced Market Stats. The MSRB also enhanced the Market Statistics section of the EMMA website.  EMMA users now can see additional graphical representations when viewing information related to overall municipal market trading activity, the amount traded by customers and dealers, and trade volume for any given date range. Earlier this week, the MSRB week launched a mobile version of the EMMA website that optimizes certain elements of the site for display on mobile devices.  The mobile version improves the ability of investors receiving EMMA email alerts on a mobile device to view the trades or documents as soon as the alert is received. For further details, go to [MSRB News Release, 2/29/12].