NEW YORK CITY-Nasdaq OMX and IntercontinentalExchange on Tuesday rolled out a new, ostensibly more attractive proposal in their unsolicited $11.3-billion bid to acquire NYSE Euronext. The impact of the newly proposed terms on investor sentiment at publicly traded companies, including REITs, remains uncertain.

NYSE Euronext, which is planning a merger with Frankfurt-based Deutsche Boerse, acknowledged receipt of the Nasdaq/ICE offer in a brief statement. The parent company of the New York Stock Exchange says that its board of directors will review the offer expeditiously, “consistent with its fiduciary duties and its obligations under its previously announced business combination agreement with Deutsche Boerse AG.”

Under Tuesday’s terms, Nadsdaq OMX and ICE pledged to pay a termination fee of $350 million should the deal not go through. Additionally, they reiterated the terms for the cash portion of the deal, which, along with financing, would total $3.8 billion.