AXT's bull case hinges on supply rather than demand, and China holds many of the cards. Demand is growing strongly, but China can reasonably be expected to favor its own industry and permit exports only where they serve its broader interests, which argues against overly optimistic forecasts. @larmatrade notes over half of revenue is now domestic Chinese; if half of demand is Chinese, AXT should to some extent be valued like a Chinese company, and the market is likely to price it so over time. … Show more

AXT's indium phosphide business is at China's mercy, since its expansion inside China lets Beijing decide every line item on every purchase order. Per a report shared by @wallstengine, US officials are pressing China over delayed InP export approvals as the material becomes an AI data center bottleneck, and AXT says export permits are its biggest challenge. The stock was rejected at resistance despite that news. x.com  x.com  x.com 

AXT is a speculative add on the market's sharp drop, because indium phosphide wafer prices have reportedly risen a lot lately. x.com 

Lumentum and Coherent are investments driven by product iteration, while AXT is a bottleneck trade best treated as speculation. Shortage-driven price hikes on the same parts define a cyclical stock, prices quickly discount shortage expectations, and once profits truly climb it is time to exit. Bottlenecks also push customers to design around them and invite new entrants. Investable companies keep lifting margins through yield gains and new products, driving token deflation while growing revenue. … Show more

AXT looks very bearish on the risk that China stops allowing indium phosphide exports to the US. The same export question raises doubt over whether US companies will even be able to use CXMT DRAM. x.com 

AXT holds a critical-materials monopoly hiding in plain sight, because AI needs fiber, fiber needs lasers and lasers need indium phosphide. The stock is volatile. x.com 

AXT cannot be the dominant indium phosphide substrate supplier when its customers' supply depends on the Chinese government's export permitting. Lumentum has locked up InP supply for several years with Sumitomo, a larger competitor that does not face the same export restrictions. Doubling down on manufacturing in China is an odd choice given continuous permitting roadblocks. Substrate pricing is unlikely to go parabolic, despite Serenity's claims of 10x+ price increases. x.com  x.com 

AXT priced its secondary offering a steep 22.5% below the prior close, another sign the company is less legitimate than its choke-point story suggests. It follows the appointment of a CFO who had served a five-year officer ban. x.com 

AXT is the upstream chokepoint of the photonics buildout, supplying the indium phosphide substrates every high-speed laser needs amid a massive global shortage. About 600,000-700,000 wafers shipped in 2025 against demand of 1.5-2 million, and AXT holds roughly 36% of a market three firms control. Record revenue rose 164% to $47.6M and gross margin hit 45% from 8.2%; Lumentum prepaid $87M to reserve capacity through 2031. The real risk is China, where slow export permits caused a guidance miss. … Show more

Small caps such as AXT that have risen 8,800% in a year at forward P/Es in the hundreds look held by buyers hoping to dump on the next person. Investors should ask who runs them, what the moats are and whether competitors can replicate them; Nvidia's Jensen Huang says most bottlenecks can be solved within a few years, so what happens in 5-10? This pushes back on @aleabitoreddit's claim that AXT controls the materials buildout for photonics. x.com