** Shares of U.S. communications equipment provider Adtran
Inc ADTN.O down ~15% at $20.97
** Co to buy German rival Adva Optical ADAG.DE for 789 mln
euros ($930.70 mln)
** ADTN shares set for biggest one-day pct. fall since
October 2019
** Each ADAG share will be exchanged for 0.8244 share of the
new co, which will be renamed Adtran Holdings Inc, valuing ADAG
at 17.17 euros per share - ADTN urn:newsml:reuters.com:*:nASN001LO2
** After the deal closes, which is expected to be in Q2 or
Q3 of 2022, ADTN will own ~54% equity of the combined co
** ADTN shares up ~39% this year, compared with a 19.6% rise
in the S&P 600 Communications Equipment index .SPSMCCOMM
($1 = 0.8477 euros)
(Reporting by Deborah Sophia in Bengaluru)
((DeborahMary.Sophia@thomsonreuters.com;))