Technical Analysis: 4 September 2026

Ciena Corporation (CIEN) 

• 3Q26 Revenue: $1.67B, +36.9% YoY, beat estimates by $30M 

• 3Q26 Non-GAAP EPS: $2.11, beat estimates by $0.38 

• 4Q26 Guidance: Revenue is expected at US$1.75B ± US$50M, with non-GAAP gross margin of approximately 45% ±50bps and operating margin of approximately 20% ±50bps. 

• FY26 Guidance: FY26 revenue guidance was raised to US$6.42B ± US$50M, implying approximately 35% YoY growth at the midpoint. Management indicated that demand remains strong, but supply capacity is becoming the main near-term constraint on growth. 

• Dividend/Share Buyback: Repurchased approximately 0.4M shares for US$171.7M during the quarter under its existing US$1B share-repurchase programme. 

• Comment: This was fundamentally an exceptionally strong quarter. Revenue grew 37%, adjusted EPS more than tripled, gross margin expanded 450bps and operating margin reached 22.5%. The structural thesis remains intact: AI clusters, hyperscale data centers and rapidly rising interconnect bandwidth requirements are driving a multi-year upgrade cycle across optical networking. Ciena’s position as a pure-play optical systems and interconnect provider gives it unusually direct exposure to this capex wave. The key issue is that expectations have outrun execution capacity. Despite the substantial earnings beat and higher FY26 revenue guidance, shares fell roughly 10–11% because investors are increasingly focused on supply constraints, customer concentration and whether current AI-related growth can justify the valuation. The stock had already risen sharply into earnings, while two customers accounting for more than 40% of quarterly revenue creates meaningful programme and timing risk. The principal variables to monitor are hyperscaler optical demand, WaveLogic and high-speed interconnect deployments, gross-margin sustainability, supply-capacity expansion, customer concentration and whether FY27 revenue expectations continue moving higher. 4Q26 recommended trading range: $290 to $375. Neutral Outlook. 

Ciena Corporation（CIEN) 

• 26财年第三季度营收：16.7亿美元，同比增长36.9%，超出预期3000万美元 

• 26财年第三季度非公认会计准则每股收益：2.11美元，大幅超出预期0.38美元（同比暴增逾两倍） 

• 26财年第四季度指引：营收预计为17.5亿美元（±5000万美元）；非GAAP毛利率预计约为45%（±50个基点），营业利润率预计约为20%（±50个基点）。 

• 26财年全年指引：全年营收指引上调至64.2亿美元（±5000万美元），中值隐含同比增长约35%；管理层表示需求依然强劲，但供应产能已成为短期内制约增长的主要瓶颈。 

• 股息与回购：本季度在现有的10亿美元回购计划下，回购约40万股，耗资约1.717亿美元。 

• 短评：本季度基本面表现极为强劲，但市场预期已跑赢了公司的实际交付能力。核心亮点：营收大增37%，调整后EPS同比翻了三倍，毛利率大幅扩张450个基点，营业利润率高达22.5%。其结构性投资逻辑依然稳固：AI集群、超大规模数据中心以及激增的互连带宽需求，正驱动光网络行业进入一个多年期的升级周期。Ciena作为纯正的光系统与互连基础设施提供商，极为直接地受益于这一波庞大的资本开支浪潮。核心隐忧（产能瓶颈与客户集中度）：尽管交出了炸裂的业绩并上调了全年指引，财报后股价仍大跌约10%–11%。核心原因在于：财报前股价已大幅上涨，计入了极高的完美预期；同时，供应受限限制了营收的进一步爆发；更为致命的是客户集中度风险——前两大客户贡献了本季度超过40%的营收，这带来了极大的项目交付与时间节点波动风险，令资金对高估值下的容错率感到担忧。后续关键变量包括：（1）超大规模客户（Hyperscalers）；（2）WaveLogic相干光学芯片及高速互连产品的部署节奏；（3）高毛利率的可持续性；（4）供应链与产能的实际扩张进度；（5）客户集中度的改善情况；（6）市场对27财年营收预期的演进。Ciena 凭借在光通信与数据中心互连领域的深厚技术壁垒，完美卡位了AI算力网络的基础设施升级红利，基本面与订单能见度极强。但在经历了估值的大幅扩张后，短期的产能瓶颈与极高的客户集中度构成了明显的风险敞口，股价需通过持续的产能释放来消化高预期。26财年第四季度建议交易区间：290美元至375美元。中性前景。 

Ambarella, Inc. (AMBA) 

• 2Q27 Revenue: $108.13M, +13.2% YoY, beat estimates by $0.37M 

• 2Q27 Non-GAAP EPS: $0.18, beat estimates by $0.01 

• 3Q27 Guidance: 3Q27 revenue is expected at US$115–124M, implying approximately 10–15% sequential growth at the midpoint. Non-GAAP gross margin is guided to 59–60%, with operating expenses of US$56.5–59.5M. Management is also expanding its edge-AI addressable market through the new X7 standalone AI accelerator, while estimating its five-year serviceable market could expand from roughly US$8.5B to US$22.9B 

• Comment: This was a decent quarter fundamentally, but not strong enough relative to expectations. Revenue and EPS both beat, edge-AI revenue reached record levels, and management is broadening Ambarella’s opportunity beyond automotive cameras and security into physical AI, robotics and edge infrastructure. The X7 accelerator, seven-year distribution agreements with Macnica and Capgemini, and the previously announced >US$800M long-term Hanwha relationship strengthen the argument that Ambarella is becoming a broader edge-AI platform rather than remaining a niche vision-chip supplier. The key issue is the magnitude of the beat and margin trajectory. Revenue beat consensus by only about 0.3%, considerably smaller than the upside investors historically rewarded AMBA for, while non-GAAP gross margin declined 120bps YoY. Management also flagged memory-supply risks, and the earnings profile remains dependent on relatively modest revenue scale against a high fixed R&D base. The long-term edge-AI story is attractive, but near-term earnings revisions are unlikely to be substantial unless Q3 revenue lands toward the top end of the US$115–124M range. Shares fell approximately 5.7% following earnings, after trading as low as roughly US$59.36. The principal variables to monitor are CV5-family revenue growth, Automotive versus IoT mix, X7 customer wins, gross margin, memory availability, Hanwha programme conversion and evidence that edge-AI growth can accelerate above the current low-to-mid-teens company revenue trajectory. 3Q27 recommended trading range: $58 to $78. Neutral Outlook. 

安霸（AMBA) 

• 27财年第二季度营收：1.0813亿美元，同比增长13.2%，微幅超出预期37万美元 

• 27财年第二季度非公认会计准则每股收益：0.18美元，微幅超出预期0.01美元 

• 27财年第三季度指引：营收预计为1.15亿–1.24亿美元（中值隐含环比增长约10%–15%）；非GAAP毛利率指引为59%–60%，运营费用预计为5650万–5950万美元；管理层通过推出全新的X7独立AI加速器，进一步扩大边缘AI的可触达市场（TAM），预计其五年内的服务市场空间将从约85亿美元大幅扩张至229亿美元。 

• 短评：本季度基本面表现尚可，但相对于市场的高预期而言显得不够强劲。核心亮点：营收与EPS双双超预期，边缘AI营收创下历史新高。管理层正积极将安霸的业务边界从传统的汽车摄像头与安防领域，向物理AI、机器人及边缘基础设施全面拓展。全新推出的X7加速器、与Macnica和Capgemini签署的七年分销协议，以及此前宣布的与韩华（Hanwha）超8亿美元的长期合作，有力印证了安霸正从“利基视觉芯片供应商”蜕变为“更广泛的边缘AI平台”。核心隐忧（超预期幅度与利润率）：本季度营收仅超出市场共识约0.3%，远小于投资者历史上愿意为AMBA支付溢价的超预期幅度；同时，非GAAP毛利率同比下降120个基点。管理层还提示了内存等元器件的供应风险。此外，公司的盈利模型仍受制于相对较小的营收规模与高昂的固定研发费用基数，导致运营杠杆难以充分释放。市场反应：长期的边缘AI故事极具吸引力，但除非Q3营收能触及指引区间的上限，否则短期的盈利上修空间有限。财报后股价下跌约5.7%（盘中一度低至59.36美元），反映了资金对微幅beat及毛利率下滑的失望。后续关键变量包括：（1）CV5系列芯片的营收增长；（2）汽车与IoT业务的营收结构变化；（3）X7加速器的客户拓展与设计导入（Design-win）；（4）毛利率的修复轨迹；（5）内存等供应链的稳定性；（6）韩华（Hanwha）；（7）边缘AI业务能否驱动公司整体营收增速突破当前10%–15%的瓶颈。安霸在边缘AI与计算机视觉领域的底层技术壁垒依然深厚，向物理AI与机器人领域的战略延伸打开了长期的TAM天花板。但短期内，较小的业绩超预期幅度、毛利率的承压以及高额的研发固定成本，限制了其估值的快速扩张，需等待核心产品放量带来实质性的营收加速。27财年第三季度建议交易区间：58美元至78美元。中性前景。 

Zscaler, Inc. (ZS) 

• 4Q26 Revenue: $898.19M, +24.9% YoY, beat estimates by $20.59M 

• 4Q26 Non-GAAP EPS: $1.19, beat estimates by $0.10 

• 1Q27 Guidance: Management expects revenue of US$935–939M, approximately +19% YoY, and adjusted EPS of US$1.15–1.16. The principal concern is that FY27 growth moderates materially from FY26 despite stronger exit momentum. 

• FY27 Guidance: FY27 revenue is expected at US$3.908–3.938B, implying approximately 16.6–17.5% YoY growth. ARR is guided to US$4.396–4.426B, also around 17% growth, while adjusted EPS is expected at US$4.86–4.90. 

• Comment: This was a strong quarter operationally. Revenue and EPS both beat expectations, net new ARR accelerated, operating margin reached a record level and large-customer momentum remained healthy, with 785 customers generating more than US$1M of ARR, +18% YoY. AI security is also becoming a genuine incremental demand driver across Zero Trust, data security and protection of enterprise AI workloads, rather than simply a marketing narrative. The key issue is the FY27 growth reset. Management is guiding revenue and ARR growth to only around 17%, versus 25% in FY26, despite Q4 net new ARR improving. Part of this conservatism reflects sales leadership transitions and tougher comparisons, but it also reinforces concerns that competition across SASE and cloud security remains intense. At the current US$177.80 close, valuation is far less demanding than when ZS traded above US$300 earlier this year, but the stock still needs evidence that FY27 ARR guidance is conservative rather than indicative of a structural slowdown. Shares closed approximately +3% at US$177.80 before trading around US$174–179 after hours, despite the beat. The principal variables to monitor are net new ARR growth, FY27 ARR guidance revisions, AI-security bookings, large-customer additions, Zero Trust Everywhere adoption, operating margin and whether sales productivity improves following management changes. 1Q27 recommended trading range: $165 to $205. Neutral Outlook. 

Zscaler, Inc.（ZS) 

• 26财年第四季度营收：8.9819亿美元，同比增长24.9%，超出预期2059万美元 

• 26财年第四季度非公认会计准则每股收益：1.19美元，超出预期0.10美元 

• 27财年第一季度指引：营收预计为9.35亿–9.39亿美元（同比增长约19%）；调整后EPS预计为1.15–1.16美元。主要担忧在于，尽管财年末动能强劲，但27财年的增速较26财年出现显著放缓。 

• 27财年全年指引：全年营收预计为39.08亿–39.38亿美元（隐含同比增长约16.6%–17.5%）；ARR预计为43.96亿–44.26亿美元（同样约17%的增长）；调整后EPS预计为4.86–4.90美元。 

• 短评：本季度运营表现强劲，但核心博弈点在于27财年的“增速重置”（growth reset）。核心亮点：营收与盈利双双超预期，净新增ARR加速，营业利润率创历史新高。大客户拓展动能保持健康，ARR超100万美元的大客户达785家（同比+18%）。在战略层面，AI安全正成为真正的增量需求驱动力（涵盖零信任、数据安全及企业级AI工作负载保护），而不仅仅是营销噱头。核心隐忧：尽管Q4净新增ARR有所改善，但管理层将27财年营收与ARR增速指引设定在仅约17%（相比之下26财年高达25%）。这种保守态度部分反映了销售领导层的过渡与严峻的同比基数压力，但也加剧了市场对SASE和云安全赛道竞争日益激烈的担忧。估值与市场反应：以177.80美元的收盘价计算，估值已远低于今年早些时候突破300美元时的苛刻水平，但股价仍需证明27财年的ARR指引是出于管理层的保守习惯，而非基本面的结构性放缓。尽管业绩超预期，股价常规交易时段收涨约3%至177.80美元，盘后在174–179美元区间窄幅震荡，显示资金对增速放缓的指引持观望态度。后续关键变量包括：（1）净新增ARR增速能否持续加速；（2）27财年ARR指引后续的上修情况；（3）AI安全相关订单的落地；（4）大客户（>$1M ARR）；（5）“无处不在的零信任”（Zero Trust Everywhere）；（6）营业利润率的扩张轨迹；（7）销售领导层换血后，销售生产力（sales productivity）。Zscaler 凭借纯正的云原生架构，在零信任与SASE赛道依然占据领导地位，AI工作负载的保护需求也为其打开了新的增量空间。然而，从25%的高增长向17%的中高速增长切换，意味着市场对其估值模型的重塑，短期内需等待新销售团队证明其指引的保守性。27财年第一季度建议交易区间：165美元至205美元。中性前景。 

Lululemon Athletica Inc. (LULU) 

• 2Q26 Revenue: $2.42B, -3.2% YoY, miss estimates by $40M. 

• 2Q26 GAAP EPS: $2.92, beat estimates by $1.13 

• FY26 Guidance: Lowered fiscal 2026 revenue guidance to decline 5-7%, compared with its prior forecast of revenue remaining flat or declining up to 1%. It also lowered earnings per share expectations to $9.48-$9.73 from its prior forecast of $10.95-$11.15. 

• Comment: Lululemon delivered a weaker-than-expected fiscal 2Q26, with revenue of US$2.42 billion missing consensus estimates as the company faced slowing demand across its key markets. Sales weakened in both the Americas, where revenue fell 8%, and China, where revenue declined 2% amid backlash to a marketing campaign, while core leggings sales dropped around 20% as efforts to shift consumers toward looser silhouettes failed to gain sufficient traction. Despite a 200-basis-point improvement in gross margin to 60.5%, largely driven by tariff refunds, management acknowledged that a lack of compelling product innovation and marketing missteps have hurt brand momentum. Reflecting these challenges, the company lowered its full-year outlook, now expecting revenue to decline 5%–7% and EPS of US$9.48–9.73, marking its second guidance cut this year. Looking ahead, Lululemon’s near-term performance will hinge on its ability to reignite product innovation and rebuild brand relevance. Investors are likely to focus on early signs of product acceptance and brand recovery, with a sustained turnaround expected to materialize gradually over the coming years rather than immediately. 3Q26 recommended trading range: $80 to $120. Negative Outlook. 

Lululemon Athletica Inc. (LULU) 

• 26财年第二季度营收：24.2亿美元，同比下降3.2%，低出预期4000万美元 

• 26财年第二季度GAAP每股收益：2.92美元，超出预期1.13美元 

• 26财年指引：下调2026财年营收指引至同比下降5%–7%（此前预估为持平至下降1%）。同时将每股收益预期从之前的10.95–11.15美元下调至9.48–9.73美元。 

• 短评：Lululemon 26财年第二季度业绩弱于预期，营收24.2亿美元未达市场共识预期，主要归因于公司在核心市场面临需求放缓。美洲市场营收下降8%，中国市场因营销活动引发抵制而导致营收下降2%，同时，将消费者引向宽松版型的尝试未能取得足够成效，导致核心紧身裤销额骤降约20%。尽管受关税退税大幅推动，毛利率提升200个基点至60.5%，但管理层承认，缺乏具有吸引力的产品创新以及营销失误已损害了品牌势头。鉴于这些挑战，公司下调了全年展望，目前预计营收将下降5%–7%，EPS为9.48–9.73美元，这是公司今年第二次下调指引。展望未来，Lululemon 的短期表现将取决于其重新激发产品创新和重建品牌相关性的能力。投资者可能会关注产品接受度和品牌复苏的早期信号，预计持续的业绩反转将在未来几年逐步显现，而非一蹴而就。26财年第三季度建议交易区间：80美元至120美元。消极前景。