** Scotiabank upgrades Canadian stock exchange operator TMX Group X.TO to "sector outperform" from "sector perform"
** Says investors are underestimating the durability of TMX’s earnings momentum and growth potential
** Brokerage also raises PT to C$70 from C$65, representing a 29.95% upside to the stock's last close
** We think TMX poses several attractive investment characteristics that include resilience through diverse revenue sources, solid growth prospects, strong cash flow and a high operating leverage - Scotiabank
** Four of seven analysts covering TMX rate the stock "buy" or higher and three "hold"; their median PT is C$61- data compiled by LSEG
** As of last close, shares up 19.65% YTD
(Reporting by Anuj T in Bengaluru)