Stocks · Theme
Networking & optical stocks · 28 research notes
28 Networking & optical stocks with a dated research note: thesis, kill line and next catalyst.
Earlier themeNot among the research's active themes (last active 16 October 2026). Each stock's note below is dated on its own.
All 28 have a dated research note with a published kill line: the note's own test, stated in advance, of what would prove it wrong: a price level, a business fact, or both.
All stocksANETArista NetworksMedium Arista Networks' guide for about $18.5 billion of 2027 revenue, near 40% growth, gives its shares a modest edge over the S&P 500 after a rebound to $206.63 on 12 November 2026. Nvidia's 17 November 2026 results set the tone for AI…CSCOCisco SystemsLow Cisco Systems' shares look more likely to lag the S&P 500 over three months because product order growth slowed to 21% from 35% despite a raised outlook; the second-quarter report expected in mid-February 2027 shows whether orders recover.LITELumentum HoldingsLow Lumentum Holdings' shares look more likely to lag the S&P 500 because a fixed 4.500-share Marvell merger ties them to Marvell's stock more than to Lumentum's growth. Marvell's 1 December 2026 quarterly report is the next test.MRVLMarvell TechnologyLow Marvell Technology shares are more likely to lag the S&P 500 over the next three months because merger arbitrage gives its $115 billion all-stock Lumentum deal only even odds, leaving an overhang until 2028. The 1 December 2026 fiscal…ALABAstera LabsMedium Astera Labs shares are modestly more likely than not to beat the S&P 500: third-quarter revenue of $584.9 million beat guidance and the $730–750 million fourth-quarter outlook tops consensus. The report expected around 10 February 2027…ATENA10 NetworksMedium A10 Networks' third-quarter revenue rose 22.6% to $91.5 million and full-year growth guidance went to about 16%, which moves the case from unproven to supported; the shares still trade below the $30 June breakout level.AXTIAXTMedium AXT, Inc.'s indium-phosphide substrate demand (record $73.41M quarter, about $90M guided for Q4) favors the shares over three months; Q4 shipments and Lumentum's orders after the Marvell deal settle it.COHRCoherentMedium Coherent's raised guidance, a roughly $20 billion PhotonLink laser agreement and open-market buying by its CEO support shares still 46.7% below their June high. The fiscal Q2 report against the $2.55–2.75 billion revenue guide settles the…EXTRExtreme NetworksMedium Extreme Networks pairs a beat-and-raise operating quarter with a Reuters-reported sale process; a named bidder or offer settles the takeover case, and second-quarter fiscal 2027 revenue against the $345.8–350.8 million guide settles the…FNFabrinetMedium Fabrinet, which assembles optical parts for AI data centers, is modestly more likely than not to beat the S&P 500 over three months: revenue grew 51% and guidance rose, but the fiscal second-quarter report in early 2027 shows whether cash…GFSGlobalFoundriesMedium GlobalFoundries, a contract chipmaker, delivered the AI growth it guided in its 4 November 2026 third-quarter report, yet the shares fell to $40.62 on a roughly $4 billion 2027 spending plan and more dilution. Fourth-quarter revenue…SILCSilicomMedium Silicom's third-quarter report beat its own guide, returned the company to non-GAAP profit and lifted full-year revenue guidance to $96–98 million, yet the shares closed at $30.15 on 9 November 2026; the fourth-quarter report decides…VIAVViavi SolutionsMedium Viavi Solutions' fiscal first-quarter beat and a $505–515 million second-quarter revenue guide point to shares that lead the S&P 500 over three months; the fiscal second-quarter report in early February 2027 shows whether revenue delivers…AAOIApplied OptoelectronicsLow Applied Optoelectronics is more likely to lag the S&P 500 over three months: its $385–420 million fourth-quarter revenue guide trails consensus and a DSP chip shortage limits 1.6-terabit shipments. Nvidia's 17 November 2026 report tests AI…ADTNADTRAN HoldingsLow ADTRAN Holdings' shares are more likely to lag the S&P 500 over three months: fourth-quarter revenue is guided flat, operating cash flow turned negative and the company can issue stock. The fourth-quarter report, expected around February…APHAmphenolLow Amphenol's record orders have not stopped the AI-hardware de-rating, and its shares look more likely to lag the S&P 500; Nvidia's 17 November 2026 results and Amphenol's late-January 2027 report decide whether data-center demand restores…CIENCienaLow Ciena Corporation's shares are more likely to lag the S&P 500 over three months: optical orders look intact, but the stock closed at $293.99 on 12 November 2026, below falling moving averages. The fiscal-fourth-quarter report, estimated…CLFDClearfieldLow Clearfield's $43.3M backlog and $195–205M fiscal 2027 sales guide point to a rebound in revenue, but the $0.25–0.46 EPS guide shows profit is not following yet; the fiscal Q1 report in early 2027 settles it.CRDOCredo Technology Group HoldingLow Credo Technology's revenue is still more than doubling, but the shares are down 57.1% from the June high after a sector-wide chip rout; the fiscal second-quarter report, expected about 1 December 2026 against a $525–535 million guide,…GLWCorningLow Corning's shares are more likely to lag the S&P 500 as AI-infrastructure stocks sell off, even with fiber sales up 44% in Q3 2026; the Q4 report around 27 January 2027 is the next test.HPEHewlett Packard EnterpriseLow Hewlett Packard Enterprise's shares look more likely to lag the S&P 500 as memory costs and data-center policy risk reprice AI hardware. The 23 November 2026 fiscal fourth-quarter report shows whether networking and Helios orders become…KEYSKeysight TechnologiesLow Keysight Technologies' record AI-network test orders back the business, but the shares are more likely to lag the S&P 500 over three months after a 22.0% fall from the high; the 19 November 2026 report on revenue and fiscal 2027 guidance…MTSIMACOM Technology Solutions HoldingsLow MACOM beat its fiscal fourth-quarter guide and guided fiscal first-quarter revenue to $450–460 million, yet the shares are more likely to lag the S&P 500 over three months. The chip group is in a bear market and book-to-bill cooled to 1.4;…MXLMaxLinearLow MaxLinear's shares are more likely to lag the S&P 500 over three months: guidance is strong, but the stock trades with a volatile optical group; the fourth-quarter report, expected around 28 January 2027, decides it.NOKNokiaLow Nokia's AI data-center sales are growing fast, but negative cash flow and a cut cash-conversion target make the shares more likely to lag the S&P 500 over three months; the fourth-quarter report, expected around 29 January 2027, settles…OCCOptical CableLow Optical Cable Corporation's data-center-driven sales and margin growth is real, but its order book stopped growing in the July quarter and the shares sit below their 50- and 200-day averages, so they are more likely to lag the S&P 500. The…SMTCSemtechLow Semtech's shares are more likely to lag the S&P 500 over three months: they closed at $119.44 on 12 November 2026, down 14.9%, despite a raised outlook. The report after the close on 23 November 2026 settles whether sales and data-center…TSEMTower SemiconductorLow Tower Semiconductor's shares are more likely to lag the S&P 500 over three months: they closed at $157.86 on 12 November 2026, 40.5% below three months earlier, despite record results. The fourth-quarter report, expected around February…