CFO 在直播间多说了几句话,一只英伟达概念股跌去一半市值

marsbitPublished on 2026-04-28Last updated on 2026-04-28

作者:库里,深潮 TechFlow

因为一句话,AI 概念股的估值能在一天里消失一半。昨天美股盘中,一家名叫 POET Technologies 的小公司做了个错误示范。

这是一家加美双重上市的光通信芯片公司,做的是数据中心 GPU 之间靠光信号通信用的光引擎。今年初市值还不到 5 亿美元,过去十几年里大多数年份都是亏损。

根据 POET 自己 3 月 31 日公布的财报,2025 年第四季度公司营收 34.1 万美元,净亏损 4270 万美元。按 AI 概念股的标准,这个规模只约等于一个学术研究项目。

但昨天,POET 股价单日暴跌 47%,创公司上市以来最大单日跌幅。

更怪的是前一周五个交易日里,POET 的股价从 7 美元出头涨到 15.50 美元,单周涨幅 108%,创了 11 年来的新高。

七天涨一倍,两天跌一半,不知道的还以为是山寨币。

这种波动通常意味着两件事之一。要么是市场对某个事实彻底改变了看法,要么是市场原本就在赌一个不会发生的故事。POET 这次属于第二种。

让股价飞起来的故事,是 POET 公开过的一段客户关系。

它的客户叫 Marvell,一家做 AI 数据中心芯片的美国公司。今年 3 月 31 日,英伟达拿出 20 亿美元入股 Marvell,把它接进了自己的 NVLink Fusion 生态。

一夜之间,Marvell 从一家给数据中心做配套芯片的公司,变成了英伟达 AI 生态里最重要的配套合作伙伴之一。

POET 在这条食物链上比 Marvell 又下游一截,给 Marvell 旗下的一家光互连子公司供货。市场据此把它看成英伟达 AI 生态里最远的那个供应商。

离桌子有点远,但毕竟还在桌边。

让股价跌下来的,其实也是同一段关系。4 月 23 日,Marvell 给 POET 发了一封信,取消所有订单。理由只有一句话,你们涉嫌违反保密义务。

至于 POET 怎么把这段关系亲手送掉的,得从一周前的一场财经直播说起。

离桌子很远的 CFO,说错了话

POET 离英伟达的桌子有多远?中间隔着两家公司。

英伟达入股了 Marvell,让它进了自己的 AI 生态。Marvell 收购了一家做光互连的初创公司 Celestial AI。而 POET 是 Celestial AI 的小供应商,给它供货已经好几年。

这是一条类似于远房亲戚的链条。链条最末端的 POET,今年初市值还不到 5 亿美元。它和英伟达没有任何直接关系。

但市场愿意把链条拉直了看,POET 通过 Marvell,沾到了英伟达 AI 生态的边。沾到了,就够了。

4 月 21 日,POET 的 CFO Thomas Mika 上了 Stocktwits 的财经访谈。Stocktwits 是美国的财经社区平台,对标过来大概是雪球+股吧+财经直播间的混合体,主要用户是散户。

它有自己的视频访谈节目,专门请上市公司高管聊聊近况,目标观众是平台上正在讨论某只股票的散户们。

主持人聊到 Marvell 的合作时,Mika 说漏了几样东西,比如他确认了 Marvell 已经给他下订单了,金额超过 500 万美元,下个季度发货。

视频上线后的五个交易日,POET 股价从 7 美元区间一路拱到 15.50 美元盘中高点,单周涨 108%,11 年新高。讨论区里的高赞帖标题都带着「英伟达」三个字。

但说话的代价两个工作日后就到了。

4 月 23 日,Marvell 给 POET 发了一封书面通知,取消所有订单。理由写得很短,POET 对采购订单和发货信息做了披露,违反了保密义务。CFO 在直播间说过的每一个字,都被原封不动写进了保密协议违规的认定里。

POET 自己一直没声张,到了 4 月 27 日才发公告把这件事告诉股东。当天 POET 股价单日跌 47%,创公司上市以来最大单日跌幅,上一周 108% 的涨幅几乎被抹平。

于是,投资社区里的散户们,有一种大呼上当的感觉。

第二天几家美国律所开始在网上发帖,号召在这只股票上亏了钱的散户加入集体诉讼,状告 POET 的高管。

就这样,一只“远房亲戚版”的英伟达概念股,做完了一场五天的梦。

AI 概念股的估值,是想象搓出来的一根绳

POET 上个季度的全部营收是 34.1 万美元。同一个季度净亏损 4270 万美元。

这种规模的公司,按基本面估值,市值不会超过它账上的现金。POET 账上有 4.3 亿美元现金,主要靠这两年不断增发新股融来。也就是说,去掉融资留下的现金,POET 这家公司本身的业务值多少钱,是个负数。

但市场不是这么算的。

POET 4 月初的市值还不到 5 亿美元,4 月 25 日盘中冲到 8 亿多。这中间多出来的 3 亿,是因为市场相信它接到的订单背后是英伟达。

一份几百万美元的间接供货合同,乘上「英伟达 AI 生态」这五个字,估值就翻了一倍。

支撑这种估值的,显然是一根想象出来的绳。POET 给一家被 Marvell 收的初创供货,Marvell 又被英伟达入了股。每一段单看都站得住。但中间隔了两道,而且每一道都不是 POET 自己说了算的。

只要其中一个环节出问题,市场对于小市值 AI 概念股的 FOMO 就会立刻褪去。

国内读者对这种估值方式应该非常熟悉。

A 股有一个长期存在的板块叫「果链概念股」,给苹果供应链做配套的国内公司,最高峰时合计市值过万亿。这些公司估值的逻辑和 POET 完全一样,留在苹果供应商名单上估值就给得起来,从名单上掉下来估值立刻打骨折。

比如歌尔股份 2022 年因为被苹果砍单两天跌了 30%,欧菲光 2021 年从苹果供应链里被剔除,之后三年股价跌了八成。

英伟达是 AI 时代的苹果。

围绕英伟达,全球资本市场已经长出了一整圈这样的"英伟达概念股"。给英伟达做配套的,给英伟达的客户做配套的,给英伟达的客户的客户做配套的...

本文的主角 POET 在这个圈里站的位置,是离英伟达最远的那一层。离得越远,绳子越细。

英伟达的桌子边角站满了 POET 这样的公司。它们的估值都靠各自手里那根绳。这一周断的是 POET 的,下一周断谁的,没人能提前知道。

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