Adtran rides three spending cycles still in their first innings. The US is spending $42.5B to bring fiber to every unserved household through 2028-plus, buying the OLTs, ONTs and optical transport Adtran makes; European telcos are replacing Huawei and ZTE gear, where Adtran has the only optical platforms approved for EU/NATO classified data; and an EU 2030 post-quantum mandate suits its ConnectGuard encryption. Revenue rose 15.5% to $286M, it is GAAP profitable, and it trades at 1.17x sales. … Show more

ADTRAN could re-rate like Harmonic once the market understands its optical networking story, as it sits at the start of three tailwinds at once. US BEAD broadband funding should contribute substantially from late 2026; Europe's proposed Huawei removal favors ADTRAN as a primary Western alternative; and AI data center optics, a $154 billion TAM by 2028 per Goldman Sachs, fits its new LiteWave800. Q1 revenue rose 15.5% to $286.1 million, US revenue 42%, and operating margin reached 6.9%. x.com  … Show more

ADTRAN is best avoided because it has failed to execute well during an upcycle, however cheap it looks relative to peers and despite its optical assets. x.com 

Adtran Holdings looked undervalued as a small cap with about 56% upside, at a $695M market cap on $1.04B of revenue, 21x forward earnings and 14% revenue growth. It has since risen 95% despite a volatile market and should reach $20 soon. x.com 

Adtran is trading as if AI data centers do not exist. x.com 

Adtran's new optical product now looks badly timed. After the earnings call it looks like a prototype, not even at sampling, while the market has moved past 100G per lane and 800G may be skipped faster than expected in favor of 1.6T and CPO. The CEO said in May that volume production should be ready in about a year, just as competitors bring much more capacity online. Customers like it and Adtran should find a place, but a smaller, slower revenue ramp makes the re-rating less compelling. x.com 

Adtran is an optical name still valued like dying copper broadband at about 1x sales, versus roughly 25x for Lumentum. Its LiteWave800 linear pluggable module uses 6-10x less power than first-gen LPO, and Goldman sees 800G holding meaningful share through 2028. Q1 revenue rose 15.5% with optical up 24%. Per the CEO, LiteWave reaches volume about a year out and large data centers aren't its sweet spot, so AI optics is a 2027 story. US broadband funding and EU Huawei replacement anchor the floor. … Show more

AmpliTech fits the telecom buildout because mobile network operators can no longer rely mainly on 1990s-style cabling and must expand faster and more efficiently. It is a risky microcap at about $100 million in market cap, but very cheap compared with its peers, offering exposure to a secular theme with a wide margin of safety. The position follows research into its earnings calls and competitors. x.com 

Telecom fiber providers Ciena and Nokia stand to benefit because AI will need far more data-center interconnect, as another investor's post illustrated. x.com 

Corning now has long-term fiber deals with both Verizon and AT&T, supplying both broadband expansion and links between AI data centers. AT&T announced a multiyear fiber and cable deal exceeding $3B focused on home and business broadband, following Verizon's multibillion-dollar deal for over 80 million fiber miles from 2027 to 2032, including long-haul AI data center links. These deals could improve demand visibility; watch shipment ramps and profit growth versus expansion costs. x.com