2026-04-30 · 供应链分析

AXTI 不只是 InP 基板那么简单

中文翻译

散户空头真的不该碰 $AXTI。我一直看到有人把 $AXTI 误解成只有 “InP 基板”，总是拿住友来对比，但我一直没出声。这是错的。它们实际上掌握了整个 InP 供应链 40% 以上，这也是机构愿意给它们融资的原因。它们握有很多卡点，不只是 InP 基板。正如海湾地区那样，削减大约 20% 的供应就会是灾难；如果再叠加另外 3-4 个卡点，后果更严重。 -> 所有原材料（铟、镓、锗）。 Vital 和 $AXTI（自有、金美）与中国公司一起构成寡头；而西方的 5N 等只占很小一部分份额。由于中国（Vital、AXT）掌握多数份额。 -> pBN 坩埚卡点： $AXTI 也是另一个巨大的卡点（博宇）。还有信越/摩根等少数玩家，但这又是精炼层面的一个瓶颈。 InP 基板： $AXT / 住友在这里是双寡头，JX、$COHR 只占很小比例。这里面还有很多其他工艺（比如红磷）处于中间环节（例如日本化学/理沙）。这是一个材料问题。 $COHR 不能在没有 AXT 控制的所有上游材料和精炼环节的情况下，直接做出 InP 基板。如果 $LITE 的 CEO 因为 InP 基板睡不着觉，那么 50 亿美元估值对维持西方超大规模云厂商的建设上线来说根本不算什么。日本的上游材料正在被出口管制，而 AXT 把这些都牢牢握在手里。所以总的来说：我看到很多空头把事情混同成 “只是 InP 基板” 了。实际上是所有铟、镓 -> 精炼加工 -> pBN 坩埚，再到最终由它们与住友共同完成的 InP 基板生产过程。如果 Vital 和多个上游卡点停止供货，下游西方 InP 基板厂商就会受影响。 AXTI 会变成一个小型垄断。估值来自掌控整条供应链，而不只是连机构分析师都搞不懂的 “InP 基板制造”。

英文原文

Retail short sellers should really not touch $AXTI. I keep seeing people misunderstand $AXTI as only "InP Substrate" with Sumitomo, over and over but just never made a comment. This is wrong. They are literally 40%+ of the InP supply chain, which is why institutions are funding them. They hold MANY chokepoints, not just InP Substrates. As seen with the Gulf, removing ~20% of a supply is catastrophic, but do that with 3-4 other chokepoints. -> All the raw materials (indium, gallium, germanium). Vital and $AXTI (captive, JinMei) are the duopoly alongside Chinese companies. With Western 5N and others only holding a small fractional share. Since China (Vital, AXT) controls majority. -> pBN Crucible chokepoints: $AXTI is a another massive chokepoint (BoYu). there's a few other players like ShinEtsu/Morgan/etc, but this is another bottleneck in refinery layers. InP substrates: $AXT / Sumitomo are duopoly here, with JX, $COHR holding just a tiny percentage. There's many other processes (eg. Red Phosphorus) here too (eg. Nippon Chemical/Rasa) in the middle. This is a materials problem. $COHR can't just make InP substrates without all the upstream materials + refineries that $AXT controls. If $LITE CEO can't sleep at night because of InP substrates, $5B valuations mean nothing to the Western hyperscaler buildout stay online. Japan is actively getting export controlled on upstream materials, while AXT holds them all captive. So TLDR: It's not just "InP Substrates" that i see a lot of short sellers conflating. It's all the indium, gallium -> refinery processing -> pBN Crucible that goes into the final duopoly InP substrate creation process they share with Sumitomo. if Vital and multiple chokepoints upstream stops shipping, downstream to the Western InP substate makers. AXTI becomes a mini-monopoly. The valuation comes from owning the entire supply chain, not just "InP substrate creation" that even institutional analysts dont understand.

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