** Shares in Exail Technologies EXA.PA fall 3.1%, pares losses after falling 6%, after the French underwater drone maker placed convertible bonds for a nominal amount of 300 million euros ($353.76 million) through accelerated bookbuilding, two traders say
** "We believe that issuing such a bond is a missed opportunity for the Group to turn its refinancing into a positive catalyst", Midcap Partners says
** The broker says the bond implies a risk of dilution of over 16% and cuts Exail's rating to "hold" from "buy"
** Including today's fall, the stock has gained 428% YTD
** It is down almost 30% from an all-time high it reached on August 4, however
($1 = 0.8480 euros)
(Reporting by Alessandro Parodi)
((Alessandro.Parodi@thomsonreuters.com;))