2026.10.21 | Review | LRCX FY1Q27

• 同比看海外一直在加速：Non-China y/y 从 1Q26 +18% 到 2Q26 +48%、3Q26 +76%，Dec Q 约 +73-86%。3Q26 环比只 +7% 是因为 2Q26 基数被抬高 (+29%)，不是海外降速。CY26 Non-China 约 +55%，中国约 +21%，中国 mix 从 36% 降到 31%。
• 推断：中国 y/y 3Q26 +26% 而 3Q25 本身是 43% 的高点，Dec Q 中国 y/y 仍是正的 (+15-38%)，"meaningfully down" 是环比口径，不是同比萎缩。

• 地区，3Q26 环比只有台湾是负的 (-18%)。韩国 +25%，日本 +19%，东南亚 +53%，美国 +7%，欧洲 +4%。美国和欧洲环比慢，是因为 2Q26 刚跳过一次 (+73%、+124%)。同比口径，所有地区都在 +40% 以上。
• Vertical，3Q26 环比慢的是 CSBG (+1%)、Logic/other (+8%)、DRAM (+17%)。CSBG 持平是管理层上季就说过的；DRAM 同比 +102%，环比慢更像 2Q26 基数，而不是需求。快的是 NAND (+52%，升级 + 新设备) 和 Foundry (+41%)。
• 同比看最慢的是 Foundry，只有 +24% (Systems 整体 +62%)，因为 3Q25 Foundry 基数是 60% mix 的高点。推断：Foundry 这条线和台湾的 -18% 是同一件事，交付时点和供给分配，见下一条。

• 推断：Non-China 和中国是此消彼长的：中国降的 2Q26 non-China +29%，中国升的 3Q26 non-China 只 +7%，Dec Q 中国回落时 non-China 又会回到 +13-21%。这和 "供给受限下按计划分配交付" 的解释一致，单看 3Q 的 +7% 会低估海外需求。
• 经营层面是好季度。收入 $8.22bn 超指引中值 1.5%；GM 52.4%、OPM 40.2% 都是纪录，OPM 第一次超过 40%；Systems +35% q/q，CFO 被 UBS 说 "I don't think I've ever seen a quarter where you grew systems 35% Q-on-Q"。EPS beat 偏小 (+2.3%) 只是税率 (16.5% vs 上季 11%)。
• 中国是计划内的。CFO："to us, it was not a surprise. It was exactly as expected"，本土和外资在华客户都强 ("strong investments here by both domestic and multinational customers")。Foundry 的强势里也点名了 "mature node spending in China"。
• 海外的弱点只在台湾。台湾从 27% 降到 18%，金额约 -$335mn (-18%)；韩国和其他地区合计 +22%。所以 "非中国只 +7%" 是被台湾一个地区拖下来的。
• 推断：台湾下降更像是交付时点和供给分配，而不是 TSMC 需求变弱。依据：(1) TSMC 10/15 重申 2026 capex $60-64bn，说 "the demand is higher than the supply"，并承认 "tool supply is tight"；(2) Lam 说本季供应 "just got a little bit tight in the quarter"；(3) Foundry 占 Systems 比例反而从 44% 升到 46%，先进制程和先进封装是驱动。供给受限时，计划内的中国订单先交，挤占了台湾当季的出货，这是我的推断，管理层没有这样说。
• Vertical 结构：Foundry 46% / NAND 26% / DRAM 20% / Logic 8% (上季 44 / 23 / 23 / 10)。NAND 金额约 +40-50% q/q (升级 + 新设备 "Both were meaningful contributors")；DRAM 金额创纪录但占比下降。

• 份额核算 (Lam 口径 Systems / WFE)：CY25 Systems $13.4bn / WFE ~$110bn = 12.2%；CY26 Systems 约 $19.8bn (Mar 3.73 + Jun 4.25 + Sep 5.73 + Dec 约 6.1，Dec 按 CSBG 持平 $2.5bn 倒推) / WFE ~$155bn = 12.8%，份额 +0.6pt。管理层说 CY26 Systems "well over 40%"、"third consecutive year of WFE outperformance"，SAM 占 WFE 提高 4 个点。
• Dec Q 单季也看不出丢份额：TD Cowen 估 Dec Q 年化 WFE 约 $180bn，Lam Dec Q Systems 年化约 $24.4bn，占 13.6%，高于全年 12.8% (推断，$180bn 是分析师的数)。
• 要盯的份额风险 (推断)：CY27 WFE 增速 DRAM 第一，而 ASML 预计今年存储系统 +75%、主要是先进 DRAM 用 EUV。DRAM 增量里光刻占比上升，Lam 本季 DRAM 占 Systems 也从 23% 降到 20%。管理层用 Akara、Aether 回应 DRAM 微缩，但这是 CY27 Lam 跑赢 WFE 幅度可能收窄的地方。
• 推断：Dec Q 指引 +4.6% q/q = 中国明显回落 + 非中国加速 (中国回到 28-30% 时非中国 +13-16%) + 供给压掉的部分。UBS 猜 $300-400mn，如果成立，不受约束的 Dec Q 约 $8.9-9.0bn，正好是 buyside 预期；管理层没确认。

对 LRCX 投资的含义 (推断)：需求逻辑没破，Dec Q 是时点问题，这一点对多头是好消息。但电话会把 CY27 的锚放在了 ">$200bn + 供给约束"，低于卖方和我们。按管理层框架，CY27 收入约 $37-41bn；取中值 $39bn、OPM 42%、税率 16.5%、股数 1.25bn，EPS 约 $11.0，比我们的 $13.57 低约 19%。按盘后约 $245 算，相当于 CY27 约 22x。我们的 thesis 要成立，需要 1 月电话会把 CY27 WFE 上调到 $220bn 以上，并且供给约束在 1H27 缓解。下一个检验点是 UCT (10/27)、ASMI (10/27)、SK hynix (10/28)，以及 AMAT (11 月中) 的份额对照。

收入和 GM 和我们基本一致，差距全在税率以下。单位 $mn，GM / OPM 为 non-GAAP；我们的 EBIT margin 和 NI 是 GAAP 口径。

• 税率继续 16.5% 左右。按指引反推：8,600 × 40.5% + 其他收益约 16 = 税前约 3,499，NI = 2.33 × 1,253 = 2,919，隐含 non-GAAP 税率约 16.6% (其他收益沿用本季 non-GAAP 的 $16mn，是我的假设)。CFO："We expect the tax rate to remain in this range for the December quarter and likely beyond."
• 指引被供给压了一点。"this revenue guide would have been a bit higher if not for some near supply chain constraints"；UBS 问是否 $300-400mn，CFO 不给数，只说延迟的会在 Mar Q 发货。"There is nothing unique, one-off, or episodic … in the December quarter."
• 对我们 CY26 的含义。按指引中值，CY26 收入 = 5,841 + 6,722 + 8,219 + 8,600 = $29.4bn，比我们的 $30.1bn 低 2.4%。我们的数隐含 Dec Q 约 $9.3bn，高于指引上限 $9.0bn。
• CY26 EPS。1.47 + 1.82 + 2.20 + 2.33 = $7.82 (non-GAAP)，比我们的 $8.46 低约 7.6%，主要是税率 (我们 CY26 10.2% vs 下半年实际约 17%) 和 Dec Q 收入。
• 推断：过去 8 季收入从没超过指引上限，所以 Dec Q 合理区间大概是 $8.73-8.89bn (中值 +1.5% 到 +3.4%)，到不了 buyside 的 $9.0bn。

• Foundry 和 NAND 超预期，DRAM 和 Logic 低于预期。和你早先的拆分比，Foundry +206、NAND +220，DRAM -124、Logic -178。CFO 说 NAND "increased approximately 40% sequentially"，按取整后的百分比算是 +53%，差异应来自取整 (推断)。
• Foundry 强势里有中国成熟制程。"Strength in the quarter was driven by investment in leading-edge nodes, including advanced packaging, as well as mature node spending in China."
• DRAM 创纪录但占比下降，支出集中在 1-alpha / 1-beta / 1-gamma 升级和 HBM。NAND 继续转向 256 层以上，开始有 384 层支出。CEO：Foundry/logic 和 DRAM 占年初至今 Systems 增量的约 80%。
• 地区。中国 35% (Jun Q 26%)、韩国 20% (持平)、台湾 18% (Jun Q 27%)、日本 9%、美国 8%、东南亚 6%、欧洲 4%。台湾绝对值约 $1.48bn，比 Jun Q 的 $1.81bn 少 18%。
• 中国。本季本土和外资客户都强，CFO 说 "it was not a surprise. It was exactly as expected"。Dec Q："meaningfully down, driven by the domestic customers in China"，外资在华仍强。TMTB 原话："China jumped to 35% of revenue from 26% in June, which makes China ~$1.1B of the ~$1.5B q/q increase; ex-China revenue grew ~7% q/q."
• 推断：中国回落、指引又有 +4.6% q/q，意味着 Dec Q 非中国收入会明显加速。比如中国回到 28-30%，非中国约 $6.0-6.2bn，比 Sep Q 的 $5.34bn 高 13-16%。"非中国只 +7%" 更像是时点问题 (台湾本季下降)。

• DOI 从 FY1Q25 的约 177 天降到 106 天。库存绝对值本季反弹 6%，但 COGS 增长更快。推断：库存托底出货的空间在缩小，接下来出货增长更依赖供应链交付，这和采购专家说的 "关键零部件约束" 一致。CFO 说库存增加是主动备货 ("building inventory to meet the expected future demand")，周转 3.4 次是近 7 年最高。员工增加约 1,900 人到 24,300，主要在工厂和现场。
• 递延收入 +$227mn。CFO：主要来自销量增长，部分被客户预付款减少抵消 ("partially offset by a decrease in customer down payments")，和我 v1 的推断相反。日本客户已发货未确认收入从 $490mn 降到 $468mn。
• 资本回报。回购 $1.02bn、分红 $325mn，合计占 FCF 41% (CFO 口径)，年初至今 59%；本季启动了 ASR，Dec Q 继续执行；长期 85% 不变。季度股息从 $0.26 提到 $0.33 (+27%)。现金从 $5.6bn 增至 $7.45bn。

实际 Systems 收入 $5.73bn，比他说的 $4.0-4.3bn (中值约 $4.15bn，和 Q2 持平) 高约 $1.6bn，即 +38%。他的 2025 年数 ($13.0-13.5bn) 和 2Q26 数 (约 $4.2bn vs 实际 $4.25bn) 都对得上，所以口径应该就是 Systems 收入。

• 结论：他的季度口径作废。他的理由是 "Q3增速有限并非需求疲弱，而是供应链改善速度较慢"，但实际出货和库存消化都比他说的快。
• 管理层部分印证了他的供给约束：零部件 "a little bit tight"，压了 Dec Q 指引，但 "we'll be caught up very shortly"。
• 推断：他的年度节奏 (2026 / 2027 出货 +22-25% / +20%) 是我们 CY27 +47% (final preview 44.3 / 30.1) 最大的反证，现在可信度也应下调。但也可能是他只看到部分产品线或工厂，年度节奏仍有参考价值。
• 一个反向信号：非中国收入只 +7% q/q。如果他主要覆盖非中国客户，他的 "持平" 可能并不离谱。这是猜测，没有证据说明他的覆盖范围。

• 建议：模型税率从 CY26 10.2% / CY27 11.8% / CY28 13.8% 上调到 CFO 说的 16.5%。粗算：税率到 16.5% 时，CY27 EPS $13.57 会降到约 $12.85 (按 (1-16.5%)/(1-11.8%) 缩放，其他不变)。
• 之前建议的 15% 稳态也偏低；CFO 说 16.5% "for the December quarter and likely beyond"，并 "encourage everyone to make sure they have their earnings models updated to this higher tax rate"。

1. Dec Q 收入指引原本会更高一些，被近期的供应链约束压低了。
   "I would mention that this revenue guide would have been a bit higher if not for some near supply chain constraints that we are actively managing." — Bettinger，开场白
2. UBS 问是否压掉 $300-400mn、March 季能否回到 Systems +10% 左右。CFO 不给数，只说因时间原因 12 月没发的货会在 March 季发。
   "I'm not going to put a specific number on it. In the script, I said it would have been a little bit higher. So it would have been a little bit higher. And yeah, Tim, to the extent that it's something we would have shipped in December because of timing, we will ship that in the March quarter." — Bettinger，回答 UBS Arcuri
3. TD Cowen 问 Dec Q 年化 WFE 接近 $180bn，是否有一次性收入或涨价。CFO：没有一次性因素，就是客户需求。
   "Krish, no. There is nothing unique, one-off, or episodic, to use your word, in the December quarter. It is just consistent with customer demand, frankly. And like I alluded to, it would have been a little bit higher if not for some of these supply chain constraints, but there is not anything one-off." — Bettinger，回答 TD Cowen Sankar
4. 中国 Dec Q 会明显下降，主要是本土客户；外资在华客户仍然较强。
   "I expect in December it will be meaningfully down, driven by the domestic customers in China. I expect in the December quarter the multinationals in China likely continue to be reasonably strong, but the percent of revenue in China will be meaningfully down in the December quarter." — Bettinger，回答 TD Cowen
5. Sep Q 中国走强不是意外，完全符合预期。
   "Krish, to us, it was not a surprise. It was exactly as expected." — Bettinger
6. 推断：中国回落、总收入仍 +4.6% q/q，说明非中国在加速。若中国回到 28-30%，非中国约 $6.0-6.2bn，比 Sep Q 高 13-16%。UBS 猜的 $300-400mn 如果成立，不受约束的 Dec Q 大约 $8.9-9.0bn，正好是 buyside 的预期 (管理层没确认这个数)。

• AI 带来前所未有的半导体需求，器件复杂度上升。
  "AI continues to drive unprecedented semiconductor demand and increasing device complexity." — Archer
• 行业处在多年投资周期的早期，客户可见度延伸到 2028 年。
  "we believe the industry is in the early stages of a multiyear investment cycle, with customer visibility extending through 2028." — Archer
• 2028 年的可见度是需求端的；现在给精确 WFE 数还太早，是因为洁净室和供应链进度还要看。
  "we have visibility through 2028. That's really from the demand side. ... by the January call ... We'll have a better view of cleanroom schedules of supply chain constraints" — 管理层 (转写稿未标注)，回答 Goldman
• 据报道过去 18 个月平均每周 token 用量增长约 250 倍；agentic 工作流扩大算力、内存、存储需求。
  "It is reported that average weekly token usage is up roughly 250-fold in the past 18 months." — Archer
• "$100bn AI capex 对应约 $10bn WFE" 的模型下，明年同样 $10bn 里 Lam 的机会比今年更大。
  "the important thing is that $10 billion next year, Lam's opportunity in that $10 billion would be even greater than it is this year because of the device evolution." — Archer

• 进入 CY27，洁净室空间和部分零部件的供应约束会继续限制芯片厂和设备商满足终端需求。
  "As we move into calendar year 2027, we see cleanroom space availability and supply chain constraints for certain components continuing to limit chipmakers' and equipment companies' ability to fully meet end demand." — Archer
• 需求太强，供应链有点紧；不说具体哪个环节，本季只是变紧了一点。
  "given how strong things have been, we're seeing a little bit of tightness. I'm not going to get into specifically where it is ... But it just got a little bit tight in the quarter." — Bettinger，回答 Deutsche
• 必要时愿意投资供应商，但多数供应商资金充足。
  "if we needed to make some level of investments, we'd be open to that. But frankly, a lot of our suppliers are well-capitalized and can manage this on their own" — Bettinger
• 和疫情时期的短缺完全不同；近两个月和全球供应商开了几次大会，交代未来几年的增长预期。
  "for those of us who are around during the COVID shortages, this is nothing like that. ... just in the last two months, we've hosted a couple of big events with our global suppliers" — Archer
• 瓶颈在自家增长特别快的产品线，比如先进封装：部分供应商收到的需求增速远快于 Lam 自身；很快会追上。
  "you can find certain suppliers that are seeing percentage growth of our demand to them rising even much faster than Lam itself is growing. ... I think we'll be caught up very shortly." — Archer
• 今年主要受洁净室约束；明年年初到年底有 10 座新 Tier 1 晶圆厂陆续投产，同时有新出现的供应链约束。
  "When we look in the next year, we see 10 new Tier 1 fabs coming online between the beginning the year and the end of the year. ... This year has been primarily cleanroom constrained. And then again you see like we said some emerging supply chain constraints" — 管理层 (未标注，开头说 "I'll let Tim add")，回答 Goldman
• 主动备货：库存增加 $274mn，为预期需求做准备；库存周转 3.4 次，近 7 年最高。
  "Inventory ... was an increase of $274 million from the June quarter, as we're building inventory to meet the expected future demand for our products. ... inventory turns continued to strengthen to 3.4 times" — Bettinger
• 员工增加约 1,900 人到 24,300，主要在工厂和现场；capex $258mn，扩实验室和全球产能。
  "Headcount increased primarily in our factory and field teams to support expanding manufacturing activities and growing tool installations." — Bettinger
• 推断：供给约束是真的但幅度不大，管理层的口径是 "一个季度的时点问题"。和采购专家说的 "出货受关键零部件约束" 方向一致，但他的季度数错了。

• CY26 WFE 约 mid-$150bn。
  "For calendar year 2026, we expect WFE in the mid $150 billion range." — Archer
• CY27 初步 >$200bn，增速 DRAM 第一，其次先进 foundry/logic，再次 NAND。
  "Our preliminary 2027 WFE outlook is more than $200 billion of spending, with percentage growth led by DRAM, followed by leading-edge foundry/logic and NAND." — Archer
• 今年 WFE 从 mid-130 一路上调到 mid-150，是因为客户挤出更多洁净室产能、项目提前。
  "We started mid-130 and then we went to a little bit more than 140 and then a little more than 150. And then we just took you to mid-150s. Basically what we saw happening across all aspects of our customer base is everybody squeezed a little more out of the clean rooms that they had and/or pulled projects in" — Bettinger，回答 BofA
• >200 只是起点，通常不会这么早给；下季度电话会给更精确的数。
  "with the more than 200 number, we're giving you our initial starting point, more than 200. We normally don't give you this much specificity this early in the year and we'll give you a sharper pencil on that when we get to the earnings call next quarter." — Bettinger
• 不受约束的需求会更高，但不给数。
  "I'm not going to put a number on what the unconstrained demand would be. It probably – it – not probably, it would be higher." — 管理层 (未标注)，回答 Bernstein
• DRAM 和 foundry/logic 的差距没有因为新逻辑厂公告而收窄，这些项目他们事先就知道。
  "all of these projects, perhaps that people are now publicly hearing about. We knew about in advance of that. So it really hasn't changed much." — Archer，回答 Citi
• 推断：去年起点 mid-130、最终 mid-150 (约 +15%)。同样的上调幅度，CY27 会到约 $230bn，即我们 231 的水平。所以 231 是 "全年顺利上调" 的情景，不是基准。

• 算上 Dec Q 指引中值，CY26 Systems 收入增长远超 40%。
  "Including the midpoint of our December quarter guidance, we expect calendar year 2026 systems' revenue to grow well over 40% year-on-year." — Archer
• 过去几年 SAM 占 WFE 提高 4 个点；2026 年是连续第三年跑赢 WFE。
  "have driven a 4 point expansion of our served available market or SAM, as a percentage of WFE. ... we expect 2026 to mark our third consecutive year of WFE outperformance." — Archer
• 明年跑赢的驱动是所有器件的沉积和刻蚀强度上升，尤其是先进封装。
  "I would say it's driven by the increase in deposition and etch intensity across all devices. ... Lam's exposure in the advanced packaging space is extremely high." — Archer，回答 RBC
• 预计下一个日历年继续跑赢。
  "an expectation that we're going to continue to drive those things into the next calendar year." — Ganesh，结束语

• Memory 占 Systems 46%，和上季持平；金额创纪录，同比 +120%。
  "September quarter Systems revenue in memory was 46%, which was consistent with the prior quarter. On a dollar basis, this represented a record level for memory, and it was up 120% from the same period in 2025." — Bettinger
• NAND (非易失存储) 占 26% (上季 23%)，金额环比约 +40%，主要是向 256 层以上转换，开始有 384 层支出。
  "non-volatile memory accounted for 26% of our Systems revenue, up from the June quarter's level of 23%. On a dollar basis, NAND revenue increased approximately 40% sequentially ... We are seeing initial spending on 384-layer class devices." — Bettinger
• DRAM 金额创纪录，占比从 23% 降到 20%；支出集中在 1-alpha / 1-beta / 1-gamma 升级，服务 DDR5、LPDDR5、HBM。
  "DRAM revenue reached a record, growing sequentially on a dollar basis, but down a little bit on a percentage basis from 23% of Systems revenue in the June quarter to 20% in the September quarter." — Bettinger
• Foundry 创纪录，占比从 44% 升到 46%；来自先进制程 (含先进封装) 和中国成熟制程。
  "Its share of systems revenue increased to 46% from 44% in the June quarter. Strength in the quarter was driven by investment in leading-edge nodes, including advanced packaging, as well as mature node spending in China." — Bettinger
• Logic / other 占 8% (上季 10%)，主要是先进制程。
  "logic and other were 8% of our systems revenue in the September quarter, slightly down from the prior quarter's level of 10%." — Bettinger
• Foundry/logic 和 DRAM 占年初至今 Systems 增量的约 80%。
  "These two market segments have accounted for approximately 80% of Lam's systems revenue growth year to date." — Archer
• 中国以外的成熟制程今年不会明显增长，明年会强。
  "Probably not in a meaningful way this year, Harlan. I do expect as we get into next year, that mature node spending outside of China will be strong" — Archer，回答 JPM
• NAND 这一轮升级 (128 层 → 200 层级) 2027 年做完，之后直接滚动到下一轮；客户已在转 300-400 层，研发上早已参与。
  "we said that we would be finishing that in 2027. ... then you just roll to the next upgrade cycle. ... people are already moving into the 304 and 400 layer devices." — Archer，回答 Deutsche
• SLC 存储层级：NAND bit 每转 1 个点到 SLC，约需 2% 更多晶圆产能；NAND 潜力还没完全释放。
  "for each percentage point mix shift of NAND bits to SLC-class devices, approximately 2% more installed wafer capacity will be needed to support the same bit demand." — Archer
• 先进封装今年 +70% 不变；明年不增长会 "震惊"。面板级封装已出货给 20+ 客户。
  "70% for this year is still the right number. And I would be stunned if advanced packaging didn't grow nicely next year." — 管理层 (未标注)，回答 Jefferies
• 3D DRAM vs 4F²：无论哪条路线，刻蚀和沉积强度都上升；直接从 6F² 跳到 3D 会升得更快。
  "if really we're making a leap right from 6F Square into 3D DRAM, then etch and dep intensity is going to rise even faster, even sooner than we would have thought" — Archer，回答 UBS
• Foundry/logic 每片晶圆 SAM 翻倍的路线大概走了一半。
  "that 2X was a multi-generational shift. ... maybe halfway through" — 管理层 (未标注)，回答 MS

• 中国占 35% (上季 26%)，本土和外资客户都有强投资。
  "China contributed 35% of revenue, up from the June quarter level of 26%. We saw strong investments here by both domestic and multinational customers." — Bettinger
• Dec Q 中国占比会显著低于 Sep Q。
  "In the December quarter, we expect China will represent a significantly lower percentage of our total revenue compared with the September quarter." — Bettinger
• 韩国 20% 持平，台湾 18% (上季 27%)。
  "Korea's contribution to revenue in the September quarter remained unchanged from the June quarter level at 20%. The Taiwan region contributed 18% of revenue, down from the June quarter at 27%." — Bettinger

• CY26 CSBG 增长超过 30%，是上次投资者日长期目标的两倍多；升级、备件、服务全面增长。
  "annual revenue expected to grow more than 30% year-over-year. This is more than twice the rate of our long-term target set at our last Analyst Day." — Archer
• CY27 CSBG 增长超过 15%。
  "We expect CSBG momentum to continue in calendar year 2027, with revenue growing over 15% year-over-year." — Archer
• Sep Q CSBG 近 $2.5bn，连续第四季创纪录，环比小增，各组成部分都强。
  "This was up slightly from the June quarter and 40% higher than the same period in 2025. Each component of CSBG remained strong with the prior quarter." — Bettinger
• 备件仍是最大组成；NAND 升级强；Reliant (成熟制程) 上季表现很好，趋势延续到明年。
  "I've always said spares is the biggest individual component and that continues to be true ... Reliant did quite nicely last quarter, given the strength of investment at mature node spending" — Bettinger，回答 JPM
• NAND 本季增长里新设备和升级都是重要贡献。
  "Both were meaningful contributors." — 管理层 (未标注)，回答 Bernstein
• 设备智能和 Dextro 协作机器人帮助拿下多家存储厂的按效果付费服务合同。
  "helped us secure performance-based service contracts with multiple memory manufacturers." — Archer

• Sep Q GM 52.4% 创纪录，来自有利的客户和产品 mix；继续平衡成本和定价。
  "The September quarter came in at an all-time record of 52.4%, improving from the June quarter level of 52% due to favorable customer and product mix. Additionally, we continue to balance our cost and pricing postures." — Bettinger
• Dec Q GM 52.5%，在客户 mix 逆风下仍小幅改善。
  "This is improving a little bit in spite of headwinds related to customer mix." — Bettinger
• 短期 GM 在当前水平上下波动；几年内做到 mid-50s。
  "in the near-term, Srini, I think you're going to be plus or minus the level that we're at. We did suggest over the next several years, we see an opportunity to expand gross margin into the mid 50s." — Bettinger，回答 RBC
• 抓手：新产品 (Akara、Aether)、靠近客户制造 (还有一点空间)、定价。
  "We've talked about our close to customer strategy ... still has a little bit of juice left to squeeze there. And then we've also talked about the fact that we're working on pricing." — Bettinger
• 推断：TD Cowen 问到涨价是否推高了 Dec Q 隐含 WFE，管理层没有正面回答，只说没有一次性因素。

• Opex $1.0bn (上季 $916mn)，主要是盈利提高带来的激励薪酬；R&D 约占三分之二。
  "The increase was primarily driven by higher incentive compensation due to our increased profitability levels." — Bettinger
• non-GAAP 税率 16.5% (上季 11%)，原因是美国对海外收入税率上升和利润地区结构变化；Dec Q 及以后维持，请更新模型。
  "The non-GAAP tax rate was 16.5% for the quarter compared to 11% in the June quarter ... We expect the tax rate to remain in this range for the December quarter and likely beyond. I'd encourage everyone to make sure they have their earnings models updated to this higher tax rate." — Bettinger
• 营业外收益约 $16mn 收入 (上季 $19mn 费用)，来自汇率、利息和创投组合。
  "Other income and expense for the September quarter was approximately $16 million in income" — Bettinger

• 递延收入 $2.66bn，+$227mn，主要来自销量增长，部分被客户预付款减少抵消。
  "This grew primarily due to increased sales volume, and it was partially offset by a decrease in customer down payments." — Bettinger
• FCF $3.24bn 创纪录；本季返还 FCF 约 41%，年初至今 59%；启动 ASR，Dec Q 继续；长期 85% 不变。
  "We returned approximately 41% of free cash flow in the quarter and 59% in the calendar year-to-date. ... Our long-term plans remain to return 85% of free cash flow to shareholders." — Bettinger
• 今年还还了 $750mn 到期债务；回购授权剩 $3bn；现金提高是为了支持业务量和资本投资。
  "we also used $750 million to pay down maturing debt during the year. ... We have $3 billion remaining on our Board-authorized share repurchase program." — Bettinger
• 对库存水平很满意，同时在为明年需求备货。
  "we're super comfortable where it is right now. ... we are trying to build inventory and anticipation of the growing demand we see into the next year." — Archer (转写稿标注)，回答 Stifel

• Aether 干法光刻胶到 2030 年累计收入约 $2.5bn，比之前预期高约 $1bn；已在 HBM 量产中爬坡。
  "we now expect cumulative ether related revenue to reach approximately $2.5 billion by the end of the decade, roughly $1 billion above our prior expectations." — Archer
• Akara：晶圆间波动最多降 50%，单位面积产出最多升 50%，多家客户采用。
  "delivering up to a 50% reduction in wafer-to-wafer and lot-to-lot variability and up to a 50% gain in wafer output per fab footprint." — Archer
• 背面供电：在一家领先客户拿下四个产品的 tool of record。
  "recently secured tool of record wins for all four products at a leading customer." — Archer
• 面板级封装份额预计超过目前晶圆级封装的强势份额；仍在很早期。
  "we expect to achieve panel-level packaging market share that surpasses the strong position we already hold in current wafer-level packaging." — Archer

对我们模型的含义 (推断)

• CY27 WFE。我们 231 (+48% vs 156)，管理层起点 >200 (约 +30%)。231 是 "全年顺利上调" 的情景，不是基准。
• CY27 收入。CY26 Systems 约 $19.8bn ($29.4bn 减 CSBG 约 $9.6bn)，占 WFE 155 的约 12.8%。WFE 200-215 × 份额 13-14% = Systems $26-30bn，加 CSBG 约 $11bn (+15%) = $37-41bn。我们 $44.3bn 需要 WFE 231 且份额到约 14.4%。
• Dec Q 的缺口会在 March 季补回，所以 CY1Q27 Systems 增速可能高于常规季节性；UBS 的 "+10% 左右" 管理层没确认。

• 器件复杂度上升、3D 化推进，过去几年 SAM 占 WFE 提高了 4 个点；加上新产品拿份额，2026 年是连续第三年跑赢 WFE。
  "Over the past few years, increasing device complexity and a push towards greater 3D scaling, have driven a 4 point expansion of our served available market or SAM, as a percentage of WFE. When combined with share gains from products addressing this growing SAM, we expect 2026 to mark our third consecutive year of WFE outperformance." — Archer，开场白
• CY27 跑赢 WFE 的核心是所有器件的沉积和刻蚀强度上升；AI 每 $100bn capex 约对应 $10bn WFE，明年 Lam 在这 $10bn 里的机会比今年更大。
  "the important thing is that $10 billion next year, Lam's opportunity in that $10 billion would be even greater than it is this year because of the device evolution." — Archer，回答 Srini Pajjuri

• Foundry/logic 和 DRAM 贡献了今年以来 Systems 收入增量的约 80%。
  "These two market segments have accounted for approximately 80% of Lam's systems revenue growth year to date." — Archer，开场白
• 四五年前投了一整套 foundry/logic 和 DRAM 产品，现在这些产品是增长的主要来源。
  "We invested four, five years ago in an entire set of products focused on improving our position in foundry/logic and DRAM, and I commented on the fact that, that today those products are driving a significant portion of our growth" — Archer，回答 Srini Pajjuri
• Investor Day 说的 foundry/logic 每片晶圆 SAM 翻倍，大约走了一半；GAA、ALD、表面处理 (Argos) 的导入比当时预想的还快。
  "maybe halfway through, if I thought about that roadmap that we gave there... even at the Investor Day, we might not have realized just how strong the uptake would be for things like the Argos surface treatment tool." — Archer，回答 Shane Brett

• 多家芯片厂采用 Akara 做高深宽比刻蚀；晶圆间和批次间波动最多降 50%，单位洁净室面积产出最多提高 50%。
  "Multiple chipmakers are adopting Akara for its ability to etch very high aspect ratio features with exceptional profile control, while at the same time delivering up to a 50% reduction in wafer-to-wafer and lot-to-lot variability and up to a 50% gain in wafer output per fab footprint." — Archer，开场白
• Aether 在 high-NA EUV 下做到 sub-10nm 分辨率，曝光剂量少 10%；已在 HBM 量产中配合 low-NA EUV 爬坡。到 2030 年累计收入约 $2.5bn，比之前预期多约 $1bn (转写稿写成 ether)。
  "Aether solutions are already ramping in HBM high volume manufacturing with low NA-EUV, and we see additional insertion opportunities ahead across both DRAM and foundry/logic customers." — Archer，开场白
• Aether 上调一部分来自新客户，更多是已在 HBM 量产中成为 production tool，量起来后机台数增加。
  "there have been some additional customer adoptions, but really it is, as you really become PG for something, like we mentioned, HBM manufacturing." — Archer，回答 Brian Chen

• 背面供电让工艺更复杂，需要更多沉积、电镀和刻蚀步骤；2nm 及以下由 VECTOR、SABRE、Flex 承接。
  "Implementation increases process complexity, driving the need for more deposition, plating, and etch steps. As customers ramp backside power at 2 nanometer and below, our production-proven VECTOR, SABRE, and Flex tools are well suited to the task." — Archer，开场白
• 钼 (Mo) 用于连接晶圆正面和背面，Halo 在这个新应用上有进展。
  "New materials such as molybdenum are also being introduced to enable more efficient electrical connections between the backside and front side of the wafer. For this emerging application, our Halo tool is gaining traction" — Archer，开场白
• 在背面供电 SAM 里拿份额，最近在一家领先客户四个产品全部拿到 tool of record。
  "We are gaining share in this expanding backside power SAM opportunity and recently secured tool of record wins for all four products at a leading customer." — Archer，开场白

• Syndion 拿下先进逻辑和 HBM 的 TSV 应用，最近在多家客户新增四个 position；Striker ALD 拿下多个 TSV liner；VECTOR 和 TEOS 3D 拿下键合膜和 die 间填隙。
  "In advanced packaging, our market leading Symbian product is winning advanced logic and HBM TSV applications... Recently, we attained four new positions across multiple customers." — Archer，开场白 (Symbian 应为 Syndion)
• 面板级封装设备已出货给 20 多家客户，尺寸 300×300 到 600×600mm；预计面板级份额会超过已经很强的晶圆级封装。
  "we expect to achieve panel-level packaging market share that surpasses the strong position we already hold in current wafer-level packaging." — Archer，开场白
• 面板级仍在非常早期，20 多家客户是在 "播种"。
  "we're still though in the very, very early stages... you can think of those as really the planting the seeds for an industry" — Archer，回答 Atif Malik
• Lam 不做键合本身，但做混合键合需要的介质和金属膜；先进封装渗透率越高，对高份额的 Lam 越好。
  "as a deposition and etch company, we don't do the bonding ourselves, but we talked about a number of films... that ultimately play an important role in achieving successful hybrid bonding." — Archer，回答 Shane Brett

• SLC 级 NAND 每片晶圆的 bit 约是 TLC 的三分之一；bit mix 每转 1 个点到 SLC，需要约 2% 更多的已装产能。
  "for each percentage point mix shift of NAND bits to SLC-class devices, approximately 2% more installed wafer capacity will be needed to support the same bit demand." — Archer，开场白
• 200 层级的升级 2027 年做完，接着滚动到 304 层和 400 层。
  "we said that we would be finishing that in 2027. And so – but we also pointed out that then you just roll to the next upgrade cycle." — Archer，回答 NAND 问题

• 当天某内存大厂说优先 3D DRAM 而不是 4F²，Lam 股价下跌。Archer 说：短期 4F² 拖得越久，先进图形化 (Aether、刻蚀) 越受益；如果直接从 6F² 跳到 3D DRAM，沉积刻蚀强度会更早、更快地上升。
  "if really we're making a leap right from 6F Square into 3D DRAM, then etch and dep intensity is going to rise even faster, even sooner than we would have thought, and that's a great thing." — Archer，回答 Tim Arcuri

• Equipment Intelligence 和 Dextro cobot 帮 Lam 拿到多家内存厂的 performance-based 服务合同，这是 CSBG 新的增长点。
  "The value we are delivering with equipment intelligence and Dextro cobots recently helped us secure performance-based service contracts with multiple memory manufacturers." — Archer，开场白
• 中国以外的成熟制程今年不会明显增长，明年会强。
  "I do expect as we get into next year, that mature node spending outside of China will be strong" — Archer，回答 Harlan Sur

解读 (推断)

• 份额故事的重心从 NAND 转到 foundry/logic 和 DRAM。过去 Lam 的 outperformance 主要靠 NAND 层数；今年 Systems 增量 80% 来自 foundry/logic 和 DRAM。CY27 是 DRAM 领涨，这一点决定 Lam 能不能继续跑赢：DRAM 投资里 EUV 占比高，如果没有 Akara、Aether 这些新产品，DRAM 领涨的年份对 Lam 份额是不利的。
• Aether 是 Lam 搭上 EUV 的方式。它不和 ASML 抢份额，而是让每层 EUV 剂量更低、扫描机产出更高，客户越用 EUV，Aether 越多。但 $2.5bn 是到 2030 年的累计数，每年只有几亿美元，对 CY27 收入影响很小。
• 背面供电四个产品全拿 TOR 的 "领先客户" 大概率是 TSMC A16 或 Intel 18A。这是 2027-28 年 foundry/logic SAM 扩张的主要来源之一。
• 3D DRAM 时间点推后，短期利好被高估的可能性更大。管理层说两条路线都利好，但 3D DRAM 才是沉积刻蚀强度的大跳升。时间推后意味着 2027-28 年的 DRAM 增量更多来自图形化和 HBM，而不是架构变化。当天股价的反应说明市场也这么看。
• 今年跑赢 WFE 的幅度比去年窄。CY26 WFE 约 110 到 155，+41%；Systems "well over 40%"，Srini 估算约 45%，超额只有几个点。去年 Systems +40% 对 WFE 约 +16%，超额二十多个点。SAM 扩张是多年趋势，单年超额主要看 mix：今年 DRAM 和 China 多，Lam 的相对优势小一些。
• 可量化的只有两项。SAM 占 WFE 提高 4 个点，到约 36%；Aether $2.5bn。其余都是定性表述或 TOR 消息，模型里不宜单独加收入，体现为 Systems/WFE 份额 13-14% 即可。

1. 把 CY27 WFE 基准从 231 降到 205-215，231 作为乐观情景；1 月电话会看管理层的精确数。
2. 模型更新：税率上调到 16.5%；CY27 CSBG 按 +15% 起步；CY26 收入从 $30.1bn 下调到 $29.4-29.8bn；CSBG 按持平起步。
3. 10-Q：库存拆分、递延收入拆分、中国客户集中度。
4. 下周同业：ASMI 10/27、UCT 10/27、SK hynix 10/28，交叉验证 Dec Q 和中国。

• Lam 新闻稿：Quarter Ended September 27, 2026 (利润表、资产负债表、现金流、地区、Dec Q 指引)
• Investing.com：Lam Research tops first-quarter targets (Street 共识、盘后跌幅)
• AskTraders：Lam Research stock falls after hours (Yahoo 共识)
• Knowledge Base 2026-10-21 "TMTB: META, TXN, LRCX, IBM First Takes" (buyside bogey、中国 26% → 35%)
• FactSet CallStreet raw transcript：Lam Research Q1 2027 Earnings Call，2026-10-21
• 项目文件：Broker GAP 表、Inventory & Beat History 表、KB channel checks (采购专家)、final preview review