** Shares of networking and communications provider Adtran Holdings ADTN.O down 15.9% at $8.78 on Tues ahead of planned capital raise
** ADTN shares on course for biggest one-day pct drop since Aug 6, 2024; about 7.9 mln shares have exchanged hands, nearly 9x their 10-DMA volume, per LSEG
** Huntsville, Alabama-based firm late Mon announced private offering of $150 mln 5-yr convertible bonds
** It intends to use net offering proceeds to repay a portion of outstanding borrowings under its credit agreement dated July 18, 2022
** Co also plans to use proceeds to pay cost of capped calls, derivative transactions employed to help mitigate dilution
** Through Mon, co had ~$836 mln market cap
** With move on the session, shares up ~5% YTD vs Nasdaq's .IXIC ~16% advance
** 4 of 8 analysts rate ADTN "buy" and 4 rate "hold"; median PT of $12 unchanged over the past three months, according to LSEG