POWIPower Integrations
1Bull0Bear6Mention
Serenity @aleabitoreddit
Focused on AI photonics and semiconductor supply chains — sourcing asymmetric setups from bottoms-up value-chain research. Tracks CPO & optical modules closely, with ongoing deep-dives on SIVE, AAOI, LITE, POET.
Quick verdict
POWI is net bullish (1 bull · 0 bear)
Power Integrations is expected to benefit from a Q3 pull-forward in power semiconductors.
Last spoke: 07/31/2026, 08:25 · conviction 5/10
8-10 confidence views use larger markers▲ Bull▼ Bear● Mention
View History (7, newest first)
- For $XFAB ER transcript: Just to recap, my idea on $XFAB foundry growth opportunities stemmed from SiC for 800v and photonixfab/MTP for CPO applicability. - $XFAB: "We are making progress in co-packaged optics". - "The transition to 800v... is expected to support demand for both SiC and GaN... for XFAB" So those analysts/people that were confidently bearposting about $XFAB that they had "0 exposure to 800V, photonics, CPO" just turned out plainly wrong. At the time I shared my idea, industry materials showed ASE and others cited photonixfab + XFAB as an upcoming CPO player in EU. And filings showed they had exposure names like $NVTS / $POWI in general. So glad $XFAB went out to explicitly clear things up to state they were developing in CPO/800v. Okay back to the ER: - "We continue to expect photonics volume production to start in 2028". Company currently has three silicon photonics projects in development with key partners. I thought it would ramp sometime in H2 2027, but was probably early by a few months. - Several new data center design wins, eg. 3 new SiC design wins (consistent with general 2027 ramp as 800v deployment takes off). So once those ramp in 2027-2028, (markets tend to price things ahead of time), I'd expect $XFAB to be rerated based on growth opportunities. TLDR: - Current revenue numbers not as impressive. - $XFAB confirmed direct exposure to CPO and 800V shifts (biggest win for thesis) - 800V exposure opportunities for SiC (should be 2027) - Timeline is 2028 ramp for photonics volume production Happy exposure thesis to CPO/800V was confirmed from this ER. Might be a bit of waiting for revenue ramp.
- @JSCC2020Lee Yep, $NVTS, $POWI, $ON, $WOLF, $AOSL $XFAB, and others with power semi exposure probably get a bump from q3 pull forward. (disclosure have exposure to xfab + navitas)
- Okay chat, here's your compiled list chat of your favorite 800V DC related ideas. 1. $IFNNY - $115.8B 2. $ON - $46.2B 3. Lite-On (2301) - $16.03B 4. 6504.T - $14.1B 5. $VICR - $12.8B 6. $LFUS - $11.57B 7. https://t.co/1unM4FPf65 - $8.34B 8. $VSH - $7.86B 9. $ENPH - $7.36B 10. $NVTS - $5.77B 11. $POWI - $4.30B 12. $BDC - $4.18B 13. $EOSE - $3.86B 14. $SEDG - $3.82B 15. $AEHR - $3.1B 16. 6890.T - $2.66B 17. $WOLF - $2.16B 18. $CWR.L - $1.75B 19. $AMSC - $1.68B 20. https://t.co/43OXU9tx65 - $1.68B 21. $XFAB - $1.54B 22. $AOSL - $1.25B 23. $HYLN - $1.23B 24. $FCEL - $835M 25. $IQE.L - $780M 26. $ASYS - $276M 27. $RELL - $239M 28. 6844.T - $222M 29. 4973.T - $207M 30. $PAY.BR - $189M 31. 6616.T - $186M 32. 6882.T - $124M 33. $IPWR - $96m Also included some adjacent ones you all mentioned like $FCEL or $EOSE anyway, tho idk it's great exposure. Ignored the clearer irrelevant stuff like $POET that people mentioned tho. There's like 500 comments, but I guess X limits everything I can see. We'll see how your highest conviction ideas do.
- The difference between NASDAQ and EU listing: $POET: $2.4B MC -> Packages Sivers lasers -> One $50m pre-production contract for warrants > $XFAB: $1.7B MC ->SiC/GaN/MEMS/Silicon Photonics Foundry backed with EU CHIPS ACT, US CHIPS ACT PMT -> Below replacement P/B value -> $NVDA, $NOK direct eval of their pre-commercial SiPH foundry, volume ramping 2027/2028 -> $XFAB leading high-volume scaling of Europe's photonic supply chains as the foundry, with IMEC/CEA-Leti, Ligentec, Smart photonics, PHIX Photonics, Luceda Photonics, and Europe's photonic players under it. -> Leading customers like $NVTS, $POWI, Lite-On -> US from Dpt. of Commerce: "the only high-volume SiC foundry in the U.S."
- Bro media… how is $XFAB a meme stock? Can you not repeat the same mistake with $RPI this time? They’re literally getting CHIPS ACT funding from the EU because of how critical they are. And have $NVDA / $NOK evaluating their SiPH side of things, while they traded at a low ~1.28 P/B. This just reminded me of $SOI low p/b but high growth verticals out of legacy segment drag. $XFAB was literally mentioned for CHIPS ACT 2 next week in the blueprints… Which focuses around photonics. The main revenue ramp was around power semis with $NVDA pushing 800 vdc. So $NVTS, $POWI, $WOLF and everyone have been taking off recently. Markets just missed $XFAB, because they’re a lesser known foundry in power semis…But US Dpt. Of commerce pointed them out as the only high volume SiC foundry in the US 2Y ago. I just happened to point out the connections. Just because you don’t understand something, don’t just go call it a “meme stock” with price detached from fundamentals.
- $XFAB (photonics + power semis) is an interesting long idea at $1.28B MC, that I took positions in. Given EU CHIPS act 2 is today as the catalyst for European photonics players. > 800 VDC power semi exposure to $NVDA push through $NVTS + $POWI > Silicon Photonics / CPO exposure with $NVDA as evaluation stage for high volume manufacturing (optical transceivers/switches) > The only high-volume SiC foundry in the US. > One of the critical MEMS foundries > ~1.29 P/B, which was around what $SOI was sitting at when I went long. Depressed valuations due to legacy drag > ~6.5-8.5 fwd p/e 2028 personal est. > backstopped by Government: - EU CHIPS act, $128M Euros - US CHIPS act $50M PMT (department of commerce). With likely more coming (just signals critical importance to Western supply chains). So at a certain point with all the grants, they’re just getting the capex funded by the Governments. EU CHIPS act 2 is coming out this week, and I’m gonna go ahead and guess $XFAB might get included given they were before, and this package is specifically targeting photonics. ~$1.3B MC seems compelling to me if it can pull a Soitec reversal (low p/b, very high growth segments, auto legacy drag). As for the $NVDA silicon photonics relationships it’s under “photonixFAB”. Markets probably missed this silicon photonics relationship (like $TSEM when I went long) with Nvidia since XFab leads this… Just under a different name. For power semis, XFAB is named for SiC + $NVTS. In PCN-22181, $POWI explicitly names XFAB as its foundry. Given its exposure to power semis and photonics as growth, low P/B, gov backstop (of course dyor, just sharing my personal thoughts) Thought it personally seemed compelling.
- @theincomewheel It’s not, but congrats to $POWI investors lol https://t.co/717CwGRGvf
Ongoing takes on other optical names too
Beyond POWI, his viewpoint library also covers: