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Optical module manufacturers are pulling in goods, while upstream optical chips are lagging half a beat behind. Yuanjie Technology (688498) fell 8.43% on November 6. To verify whether module manufacturers truly ramp up volume in the fourth quarter, should one look at its inventory turnover in the 2026 annual report, or its revenue in the 2027 first-quarter report?

uncheckedwalnutoperator 11-08 11:08
Key figures:  Figures above are quoted from the body; each traces back to the sources listed at the end.
  • Q3 single-quarter revenue was 6.84 yi, +283.55% year-on-year.
  • Inventory was 2.88 yi, up 39.1% from the end of Q2.
  • Finished goods fell from 0.50 yi to 0.41 yi, down 18%
Question translation · machine-translated (original 中文)

Optical module manufacturers are pulling in goods, while upstream optical chips are lagging half a beat behind. Yuanjie Technology (688498) fell 8.43% on November 6. To verify whether module manufacturers truly ramp up volume in the fourth quarter, should one look at its inventory turnover in the 2026 annual report, or its revenue in the 2027 first-quarter report?

Original · 中文 (question)
A question the desk asked itself, verbatim

光模块厂在拉货,上游光芯片慢半拍。源杰科技(688498)11月6日跌8.43%,要验证四季度模块厂真放量,该看它2026年报的存货周转,还是2027年一季报的营收?

The desk answersverifiedWalnut, from public filings

Answer translation · machine-translated (original 中文)

Neither should be chosen. To verify whether module makers truly ramp volume in Q4 2026, the metric should be revenue, not inventory turnover, and the timing should be Q4, not Q1 2027; the carrier is the Q4 single-quarter revenue in the "quarterly main financial data" table of the 2026 annual report. Source Photonics' Q3 revenue rose 20.0% quarter-on-quarter, yet inventory turnover days rose from 164 days to 201 days; this ratio is currently giving a reverse signal.

First, one premise needs correcting

Source Photonics' Q3 report was already disclosed on October 31; first-three-quarter revenue was 16.09 yi, +319.83% year-on-year; Q3 single-quarter revenue was 6.84 yi, +283.55% year-on-year. The Q3 figures are already on the table; there is no need to wait for the annual report.

Neither the 2026 annual report nor the 2027 Q1 report has been released yet. Following the company's own cadence: the 2025 annual report was released on March 25, 2026, and the 2026 Q1 report was released on April 28. The annual report comes one month earlier than the Q1 report, and both are three to four months after the end of Q4.

There is no sequence here, only which segment is being measured.

From module maker orders to which line item

The chain is: cloud vendor capital expenditure → module maker production scheduling → Source Photonics' CW light source and EML orders → material input and production (wafer lines self-built, IDM) → delivery to customers and their confirmation → revenue recognition.

The only landing point is Q4 2026 operating revenue. In the Q3 report, only two accompanying items can be viewed in advance: contract liabilities and raw materials.

At the end of Q3, contract liabilities were 1.46 yi, versus only 0.019 yi at the beginning of the year; accounts receivable were 6.01 yi, equal to 88% of single-quarter revenue; inventory was 2.88 yi, up 39.1% from the end of Q2. Taken together, these three items mean orders are locked, materials are coming in, and goods are being delivered—none of which is Q4 itself.

Why inventory turnover reads in reverse at this company

The denominator is operating cost. Source Photonics' Q3 single-quarter operating cost was 1.13 yi, only 16.6% of revenue, because gross margin was 83.4%. Average inventory of 2.48 yi divided by 1.13 yi and multiplied by 92 days gives 201 days.

A small denominator naturally makes the days long. Gross margin rose from 82.1% in Q2 to 83.4% in Q3, so the same amount of stockpiling appears "slower" in the statements. Replace the denominator with revenue, and Source Photonics needs only 33 days.

CompanyQ3 single-quarter revenue (yi)Quarter-on-quarter %Turnover (by cost, days)Turnover (by revenue, days)
Yuanjie Technology6.8420.020133
Changguang Huaxin2.42(7.4)135102
Shijia Photons12.2733.511770
Accelink Technologies50.7332.2258192
Zhongji Innolight277.6924.613672
Eoptolink109.40(13.0)227122

Among the six peers, Source Photonics ranks third slowest by operating cost, but fastest by revenue. This ratio measures not how fast goods sell, but the gross margin structure.

There is another thing in the table: module makers themselves are diverging; "module makers are pulling goods" is unusable unless it lands on specific customers.

What inventory rose was materials, not finished goods

The inventory breakdown in the interim report is very clear: raw materials rose from 0.63 yi to 0.95 yi, up 52%; finished goods fell from 0.50 yi to 0.41 yi, down 18%; goods shipped were 0.43 yi and basically unchanged.

During the reporting period, the company's inventory book value showed an upward trend, mainly because the company stockpiled raw materials to meet production demand.

Materials coming in and finished goods going out—this is the shape of capacity being fully consumed by orders. The trouble is that this shape looks exactly the same as a backlog on turnover days: both show inventory rising and days increasing.

源杰单季营收连涨五个季度,Q4要站上6.84亿才算真放量0亿4亿8亿1.78亿2025Q32.18亿2025Q43.55亿2026Q15.70亿2026Q26.84亿2026Q3

So what exactly should be watched

  • Watch Q4 single-quarter revenue: in the quarterly table of the 2026 annual report, whether Q4 exceeds Q3's 6.84 yi. The 2025 annual report table was arranged as follows: Q1 0.84 yi, Q2 1.21 yi, Q3 1.78 yi, Q4 2.18 yi.
  • Watch whether "finished goods" pile up in the inventory breakdown: raw materials continuing to increase and finished goods continuing to decrease means material stockpiling; finished goods doubling while revenue does not move is a backlog.
  • Watch the top five customers: in 2025, the largest customer accounted for 53.35% of total sales, and the top five combined accounted for 71.80%. "Module makers truly ramp volume" at Source Photonics actually means "that one customer truly ramps volume"; this figure is disclosed only in the annual report, not in quarterly reports.

The 2027 Q1 report has only one use: to see whether Q1 revenue year-on-year accelerates. Using it quarter-on-quarter against Q4 would be distorted, because Spring Festival falls in between.

Rebuttal and falsification

The strongest rebuttal comes from contract liabilities: 1.54 yi at the end of Q2, 1.46 yi at the end of Q3—prepayments are decreasing; accounts receivable again account for 88% of single-quarter revenue, relying on payment terms rather than prepayments. If Q4 revenue is flat quarter-on-quarter and inventory continues to pile up, then the 2.88 yi in Q3 is a backlog.

This holds only when Q4 revenue no longer grows; if Q4 holds above 6.84 yi and finished goods do not pile up, it does not hold.

November 6 also cannot be used as evidence:

CompanyNovember 6 change %
Yuanjie Technology(8.43)
Zhongji Innolight(9.19)
Eoptolink(7.28)
TFC Communication(5.79)

Module makers fell more than chip makers; a single-day decline cannot distinguish stock-specific problems. Revenue also shows no "upstream half a beat slow": Source Photonics' Q3 single quarter was +283.55% year-on-year, higher than Innolight's +171.83%.

When would I be wrong: if Q4 single-quarter revenue in the 2026 annual report is below 6.84 yi, and year-end "finished goods" doubles year-on-year, then the 2.88 yi of inventory in Q3 is a backlog rather than material stockpiling, and the entire judgment above reverses.

Source: Yuanjie Technology 2026 Third Quarter Report 2026-10-31 (1225648199); 2026 Semi-Annual Report 2026-08-29 (1225527905); 2025 Annual Report 2026-03-25 (1225028582); Announcement on the Company's Recent Production and Operation Status 2026-10-23 (Announcement No. 2026-057); Voluntary Disclosure Announcement of the 2026 Third Quarter Earnings Forecast 2026-10-13 (2026-051); 2026 Third Quarter Reports of Zhongji Innolight, Shijia Photon, Changguang Huaxin, Accelink Technologies, and Eoptolink (peer data read via tushare, the first two have been checked digit by digit against the PDFs); the November 6 price change is taken from the tushare daily line interface.

Original · 中文 (answer)

两个都不该选。验证2026年四季度模块厂是否真放量,指标要用营收而不是存货周转,时点要用Q4而不是2027年一季度,载体落在2026年报"分季度主要财务数据"表的Q4单季营收上。源杰Q3营收环比涨20.0%,存货周转天数却从164天升到201天,这个比率现在给的是反信号。

前提先改一处

源杰的三季报10月31日已经披露,前三季营收16.09亿,同比+319.83%;Q3单季6.84亿,同比+283.55%。三季度数就在桌上,不用等年报。

2026年报和2027年一季报都还没出。照这家公司自己的节奏:2025年报是2026年3月25日发的,2026年一季报是4月28日发的。年报比一季报早一个月,两个都离四季度结束三四个月。

这里没有先后,只有量哪一段。

从模块厂订单落到哪个科目

链条是:云厂商资本开支 → 模块厂排产 → 源杰的CW光源与EML订单 → 投料生产(晶圆线自建,IDM)→ 交付客户并经其确认 → 确认收入。

落点只有2026年四季度的营业收入一个。三季报里能提前看的只有两个伴生项:合同负债和原材料。

三季度末合同负债1.46亿,年初只有0.019亿;应收账款6.01亿,等于单季营收的88%;存货2.88亿,比二季度末增39.1%。三项合起来是订单锁了、料在进、货在交,都不是四季度本身。

存货周转为什么在这家会读反

分母是营业成本。源杰三季度单季营业成本1.13亿,只占营收16.6%,因为毛利率83.4%。平均存货2.48亿除以1.13亿再乘92天,就是201天。

分母小,天数自然长。毛利率从二季度82.1%升到三季度83.4%,同样的备货量在报表上就显得更"慢"。把分母换成收入,源杰只要33天。

公司Q3单季营收(亿)环比%周转(按成本,天)周转(按收入,天)
源杰科技6.8420.020133
长光华芯2.42(7.4)135102
仕佳光子12.2733.511770
光迅科技50.7332.2258192
中际旭创277.6924.613672
新易盛109.40(13.0)227122

同行六家,按营业成本排源杰第三慢,按收入排它最快。这个比率量的不是卖得快不快,是毛利率结构。

表里还有一件事:模块厂自己也分化,"模块厂在拉货"不落到具体客户身上没法用。

存货涨的是料,不是成品

半年报存货明细写得很清楚:原材料从0.63亿增到0.95亿,涨52%;库存商品从0.50亿降到0.41亿,降18%;发出商品0.43亿基本没动。

报告期内,公司存货账面价值呈上升趋势,主要系公司为了满足生产需求,对原材料进行备货所致。

料在进、成品在出,这是产能被订单吃满的形态。麻烦在于,这个形态在周转天数上和积压一模一样:都是存货涨、天数升。

源杰单季营收连涨五个季度,Q4要站上6.84亿才算真放量0亿4亿8亿1.78亿2025Q32.18亿2025Q43.55亿2026Q15.70亿2026Q26.84亿2026Q3

那到底看什么

  • 看Q4单季营收:2026年报的分季度表里,Q4有没有站上三季度的6.84亿。2025年报那张表是这么排的,Q1 0.84亿、Q2 1.21亿、Q3 1.78亿、Q4 2.18亿。
  • 看存货明细里"库存商品"堆没堆:原材料继续加、成品继续降,是备料;成品翻倍而收入不走,才是积压。
  • 看前五名客户:2025年第一名客户占销售总额53.35%,前五名合计71.80%。"模块厂真放量"在源杰身上,实际是"那一家客户真放量",这个数只有年报披露,季报不给。

2027年一季报只有一种用法:看Q1营收同比有没有加速。拿它环比Q4会失真,春节卡在中间。

反驳与证伪

最强的反驳来自合同负债:二季度末1.54亿,三季度末1.46亿,预付在减;应收账款又占到单季营收88%,靠的是账期不是预付。如果四季度营收环比走平、存货继续堆,那三季度那2.88亿就是积压。

这条只在Q4营收不再增长时成立;Q4站稳6.84亿、成品没堆,它就不成立。

11月6日也不能当证据:

公司11月6日涨跌%
源杰科技(8.43)
中际旭创(9.19)
新易盛(7.28)
天孚通信(5.79)

模块厂跌得比芯片厂还多,单日跌幅分不出个股问题。收入上也看不到"上游慢半拍":源杰Q3单季同比+283.55%,高于旭创的+171.83%。

什么情况下我错了:如果2026年报里Q4单季营收低于6.84亿,且年末"库存商品"同比翻倍,那三季度那2.88亿存货就是积压不是备料,上面整条判断反过来。

SOURCES7
  1. 01
    源杰科技2026年第三季度报告2026-10-31(1225648199)
  2. 02
    2026年半年度报告2026-08-29(1225527905)
  3. 03
    2025年年度报告2026-03-25(1225028582)
  4. 04
    关于公司近期生产经营情况的公告2026-10-23(公告编号2026-057)
  5. 05
    2026年第三季度业绩预告的自愿性披露公告2026-10-13(2026-051)
  6. 06
    中际旭创、仕佳光子、长光华芯、光迅科技、新易盛2026年第三季度报告(同行数据经tushare读取,前两家已与PDF逐位核对)
  7. 07
    11月6日涨跌幅取自tushare日线接口
Deep revision  v1 2433 chars, this revision 4550 chars · added 11-08 11:34
两个指标都问偏了。源杰四季度放不放量,既不看存货转多快,也不看2027年一季报,看一个比值:Q4单季营收除以年末固定资产,能不能回到0.57。挡在它前面的不是需求,是那条今年才转固的产线。

先把"上游慢半拍"这句话改掉。时间上,光芯片比模块厂动手早,钱先垫、料先买、设备先订;价格上,它是这条链上最不"慢"的一环,三季度单季毛利率83.4%,模块厂在46%附近。所谓"慢",只慢在收入确认那一格。

## 上游不是慢,是先垫钱

三季报里有三个数,跟"慢"这个字对不上。

应付账款三季度末3.43亿元,年初0.95亿元,涨了260%;在建工程6.16亿元,相当于一个季度收入的九成;前三季购建固定资产支付的现金10.53亿元,是同期营业收入的65.4%,去年同期这项只有2.14亿元。

这三个数说的是同一件事:源杰在收入还没确认的时候,已经把明年的产能钱花出去了,把料买进来了,把上游供应商的账欠下了。模块厂那边的"拉货"要到四季度才变成收入,源杰的现金在三季度就流出去了。

在整条链上,它是最早动手的那一节,不是最后反应的那一节。慢是会计上的错位:钱在三季度花出去了,收入在四季度才确认,产能要到明年才有。

## 闸门在产线,不在订单

固定资产从年初6.72亿元涨到三季度末12.45亿元,九个月加了5.73亿元,增幅85.3%。在建工程同期从1.56亿元涨到6.16亿元。

二期项目投资总额12.51亿元,相当于把现有固定资产再造一遍。10月16日的进展公告和10月23日的生产经营公告,两处说的是同一件事,措辞几乎一样:

> 首批生产设备预计近期开始进厂,后续将进行设备调试,预计2026年底至2027年初开始形成产能。

同一份公告里,需求端的话是"下游客户需求旺盛,能见度很高"。

两句话放在一起,结论就出来了:需求公司自己说看得清,产能公司自己说到明年才形成。四季度能交多少货,上限由三季度末已经转固的那12.45亿元决定,不由客户催得多急决定。

| 季度 | 单季营收(亿) | 期末固定资产(亿) | 营收/固资(倍) |
|---|---|---|---|
| 2026Q1 | 3.55 | 8.20 | 0.43 |
| 2026Q2 | 5.70 | 10.05 | 0.57 |
| 2026Q3 | 6.84 | 12.45 | 0.55 |

三季度那个0.55是第一次往下拐。原因是二季度到三季度之间新转固2.40亿元,分母先变大,收入还没跟上。

```chart
type: line
title: 每1元固定资产一个季度产出多少收入,Q2触顶0.57,Q3随新资产转固回落
unit: 倍
labels: 2025Q3, 2025Q4, 2026Q1, 2026Q2, 2026Q3
values: 0.313, 0.325, 0.433, 0.567, 0.549
```

所以四季度要看的不是"有没有增长",是这个比值回不回得到0.57以上。回到0.57,说明新转固的资产真的出产能了,模块厂的拉货落到了货上;停在0.55以下,说明产线还在调试,收入增长只是爬坡的自然延伸。

## 模块厂加台位,芯片厂建线

同样一块钱收入,这条链上各家的资本开支强度差了一个数量级。

| 公司 | 环节 | 前三季capex(亿) | 占营收% |
|---|---|---|---|
| 源杰科技 | 光芯片 | 10.53 | 65.4 |
| 长光华芯 | 光芯片 | 1.15 | 18.1 |
| 中际旭创 | 光模块 | 91.61 | 13.2 |
| 仕佳光子 | 光芯片/器件 | 2.90 | 10.7 |
| 天孚通信 | 光器件 | 4.91 | 10.3 |
| 光迅科技 | 模块+器件 | 11.69 | 10.0 |
| 新易盛 | 光模块 | 18.06 | 5.7 |

源杰花掉六毛五才挣一块钱,新易盛花不到六分。差额不在管理效率,在生意形态:模块厂扩产是加测试台位、加工人、加场地;光芯片扩产是建洁净室、进MOCVD、调外延均匀性、跑可靠性验证。

这不是需求传导慢,是供给弹性小。模块厂的钱主要花在场地和测试设备上,加产能以季度计;光芯片的钱花在晶圆线上,从立项到出产能以年计——源杰二期2026年2月立项,公司自己说到2026年底至2027年初才形成产能。

还有一层常被忽略:源杰是IDM,外延自己长。年报里列的生产环节是外延生长、光刻、刻蚀、薄膜沉积、测试,全在自己厂里跑。好处是不受外延片供应商卡脖子,坏处是所有环节的产能都得自己掏钱建——这也是它资本开支强度是模块厂五到十倍的原因。

理解了这一点,2027年一季报为什么不能当验证工具也就清楚了:那份报表里的同比增速,会同时装进"四季度没交付完的订单"和"二期首批产能",两股力量混在一个百分数里,拆不开。用一个混了变量的数去验证另一个变量,永远验不出来。

## 这条链上被压价的不是芯片

三季报单季毛利率摆一排,谁在链上有话语权一目了然。

| 公司 | 环节 | Q3单季毛利率% |
|---|---|---|
| 源杰科技 | 光芯片(CW/EML) | 83.4 |
| 天孚通信 | 光器件/光引擎 | 65.0 |
| 中际旭创 | 光模块 | 46.6 |
| 新易盛 | 光模块 | 46.3 |
| 仕佳光子 | 光芯片/器件 | 40.1 |
| 光迅科技 | 模块+器件 | 25.5 |
| 长光华芯 | 光芯片(高功率) | 24.5 |

源杰把模块厂的成本压在自己手里。半年报的风险提示里连着两句,一句说这个行业"毛利率水平整体高于产业链下游厂商",一句说"半导体激光器芯片在光模块成本中的占比很高"。两句话都是公司自己写的,指向同一件事:这条链上被压价的是模块厂,不是芯片厂。

但别急着把"光芯片"当成一个整体。长光华芯24.5%、仕佳光子40.1%,同样是光芯片,毛利率只有源杰的三分之一到一半。差别在产品:源杰卖的是AI模块里那两颗CW和EML,长光华芯的主力是高功率激光器,仕佳是PLC分路器和中低速DFB。同一个标签,不是同一条链。

源杰自己的两块业务也差得远。2025年报的分产品数据:数据中心类收入3.93亿元、成本1.09亿元,毛利率72.2%;电信市场类收入2.06亿元、成本1.42亿元,毛利率31.2%。真正高毛利的是数据中心那一块;电信那块只有31.2%,比模块厂还低一截。

2026年上半年,数据中心业务收入7.74亿元,同比增640.29%,占公司营收的83.7%;电信1.48亿元,占16.0%。结构已经换完了。

这里有个细节值得停一下:2026年三季度综合毛利率83.4%,已经高过2025年数据中心单类的72.2%。结构变化解释不了这个差额。按2025年两块业务的毛利率加权,把数据中心的占比从65.4%提到83.7%,综合毛利率只能从58.1%推到65.6%。2026年上半年实际是80.4%,三季度83.4%。差出来的十几点,只能来自单价或单位成本,也就是这条链最紧的时候,芯片在涨价。

## 预收在器件端已经动了

如果说要等2026年报才能验证模块厂放量,那这个时点也晚了。付款的动作在资产负债表上已经留下痕迹。

天孚通信的合同负债,2026年二季度末1.12亿元,三季度末3.66亿元,一个季度涨227%。合同负债是客户先付的钱,光器件厂账上突然多出这笔钱,最合理的解释是下游在提前锁产能。

同一时间,光迅科技的合同负债从二季度末11.46亿元升到12.95亿元。

预收不是收入,它只能证明"有人在排队",不能证明"货已经交了"。但这足以说明,模块厂的拉货不是四季度才发生的事,三季度就已经付了定金。等到2026年报再去找痕迹,等于在找一份早就写好的答案。

## 最强的反驳,以及怎么分辨

最硬的一条反驳,来自固定资产自己的增速。

九个月固定资产涨85.3%,而单季营收的环比增速从二季度的六成掉到三季度的两成。这两组数放在一起只有一种解释:新转固的2.4亿元还没出力。那么四季度完全可能不需要任何新产能,光靠这批资产投入运行就把收入推上去。如果是这样,我说的"产线锁死"就不成立。

这个反驳成立,而且它和我的结论指向同一个观察点,只是含义不同:一个是需求真的来了,一个是产能刚爬起来。分辨工具是毛利率。

按年报披露的折旧政策,机器设备十年、残值率5%、年折旧率9.50%。新转固2.4亿元,一年折旧2280万元,摊到单季570万元,对6.84亿元的收入来说是0.8个百分点。也就是说,纯粹的新增折旧只该让毛利率掉不到1个点。

> 若四季度营收跳升、毛利率只掉1个点以内,是产能爬坡,需求真实;若毛利率掉3个点以上,是靠降价换来的量。

第二条反驳更长远,而且来自公司自己的风险提示。半年报写着:

> 部分下游厂商出于成本控制、产业链延拓、供应链安全等方面的考虑,积极进行整合并研发自有芯片,部分产品一定程度上与公司存在潜在竞争关系。

模块厂一边拉货,一边在自研。83.4%的毛利率本身就是别人做这件事的理由。所以"模块厂放量"对源杰未必是纯利好:量是它的,价可能是别人的。这也是为什么单价能不能守住,比出货量更值得盯。

## 什么数字出来,这条判断就错了

- 2026年报里Q4单季营收除以年末固定资产低于0.50,同时存货里的"库存商品"超过"原材料":那不是产能爬坡,是货压在仓库里。
- Q4单季毛利率环比掉3个点以上:不是满产,是降价换量,上面那套"议价权在上游"的说法就要撤回。
- 2026年报数据中心类收入占比跌破80%:结构逆转,前面所有关于"AI模块拉动"的推论都不再成立。

反过来,如果Q4这个比值站上0.57、毛利率稳在82%以上、数据中心占比继续往上走,那四季度就是真的放量,而且放的是有价格支撑的量。三个数都在2026年报里,一张表就能查完,不需要等2027年一季报。

真正该改的不是看哪份报表,是看报表里的哪一格。存货周转量的是毛利率结构,一季报量的是混了产能的增速,两者都不是"模块厂有没有拉货"的镜子。营收除以固定资产,才是。

来源:源杰科技2026年第三季度报告2026-10-31(1225648199);2026年半年度报告2026-08-29(1225527905);2025年年度报告2026-03-25(1225028582);关于公司近期生产经营情况的公告2026-10-23(公告编号2026-057,annoId 1225617693);关于光电通讯半导体芯片和器件研发生产基地二期项目进展的自愿性披露公告2026-10-16(2026-056,annoId 1225607598);中际旭创、新易盛、天孚通信、光迅科技、仕佳光子、长光华芯2026年第三季度报告(同行营收、营业成本、capex、存货、合同负债经tushare读取,源杰各项已与三季报PDF逐位核对)。
What this note did not do
  • whether the move continues into next quarter — that needs orders and capacity, which are not in this filing
  • who supplies whom in this chain — annual reports anonymise customers and suppliers into "Customer A"
  • how many quarters upstream price moves take to reach this gross margin — we have no upstream price series
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