2026.10.05 | Substack | Weekly | Gaetano Weekly Recap

I want to make this a weekly series where I just highlight the articles I wrote the past week, some general market commentary and random thoughts, and what I am planning on this coming week.

Recently a lot of my subscribers haven’t been receiving the articles so this could also hopefully make it all very visible. If you haven’t been receiving them, and you want to, please dm me.

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Starting with this past weeks articles:

1. TSEM Refresh/Financial Model

TSEM: The Foundry Behind the Optics Ramp

Gaetano

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Sep 29

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My goal is to do a couple of these kinds of posts per week so you guys have visibility into the stocks I am quite interested in, the thesis behind them, and where I can see them goin gin the next 12 months.

1. Layer 8 of my Physical AI Thematic research

Robots Need Power. Let’s Look At Which Companies Supply It. (Free Article)

Gaetano

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Sep 30

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This is a free article and I unpack the power behind robotics and 4 companies that interest me to have exposure.

1. BKSY Update on Robinhood News

Well This Is Really Cool...Revisiting My $BKSY Physical AI Thesis

Gaetano

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Oct 1

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This was a nice small confirmation of my abstract physical AI thesis for BKSY.

1. The biggest piece for the week.

BIG Optics Update. China Restrictions Part 2. Must Read.

Gaetano

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Oct 2

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Industry chatter around more specific regarding Chinese transceiver restrictions. Made optical stocks rip like crazy. Very worth the read.

1. New Hyperscaler Investment Sleeve + full thoughts + financial models

My Hyperscaler Bucket. Which Stocks I Want to Own, At What Weight, and Why.

Gaetano

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Oct 4

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I want to be heavily exposed here and I wanted to show you all what I saw.

All in all it was a bit lower volume this week. But 3 very long and in depth articles!

We had lots of good movement in some of our optical stocks this week.

LITE (my largest position) just hit ~$1120 and is now retreating a bit. Hopefully it can break out of this massive base. The CEO was super bullish on the duration of the supply demand gap.

SMTC as well. Been pushing this one hard for the last few months. Broke that $200 level.

COHU. Not really an optical stock but they hit ATH as well.

Lots of these names have broken out of a meaningful base and are now retesting those breakouts.

and more.

Hopefully they break through and continue. I think it will mostly be dependent on what QQQ, Semis and the 10y do. If they dont, maybe we get a higher low set in place.

QQQ New All time high

SOXX with a nice breakout. Hopefully it can hold the retest.

In the Physical AI port we saw some nice movement too.

CEVA was really strong. This one took me by surprise just due to the weakness lately. Nice to see.

ON had changes to their SYNA acquisition where they are doing all cash. Market liked it.

NXPI was moving great. Hopefully we can get a bounce soon here and continue.

VPG as well great momentum. I think it’s pretty fairly valued here so I am not hopeful for too much. But regardless, nice action.

INOD had that great move on the META Muse stuff. Now market just doesn’t know what to do with this name. It trades so funky.

AAOI completed it’s latest ATM. Hopefully momentum can continue in this space and I would expect them to recover some of their gains. They largely missed a big bounce due to their ATM.

I have a call with a buddy that I highly respect who has very deep semi industry checks and he wants to talk to me about Coherent and some concerns he sees. I will have that call on Friday and share my takeaways and any updates to my own thesis if anything changes.

P just hit 100% gain since I first pitched it on here in April.

Congrats to anyone in this! I am going to scale out as it now exceeds my 12mo bull case by a good margin. But please make decisions based on your own risk:reward and this isn’t financial advice etc. etc.

The 10Y is just relentless. The strength in tech while this is happening is incredible. Hopefully we can see oil drop, yields drop, and tech continue. We’ll see.

I am in the process of cleaning up my substack.

These 3 headers make things very straightforward.

For optics I also have my ETF (which is reflective of my core weights) here:

My Optics ETF - Updated!

Gaetano

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Aug 31

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Will update at the end of October for any major changes that might come.

For Physical AI you can see my portfolio here:

Physical AI Model Portfolio

Gaetano

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Jun 1

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And you can see my target hyperscaler portoflio here:

My Hyperscaler Bucket. Which Stocks I Want to Own, At What Weight, and Why.

Gaetano

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Oct 4

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As for this week some things I’ve got going on:

1 - Layer 9 of my Physical AI. The coordination layer. Often overlooked, will be fun to share! Already pretty far through this one.

2 - A Sanmina refresher + new financial model

3 - AEHR post earnings thoughts (will also send out a dm today on some pre-earnings thoughts)

4 - I still need to get my intro to AI medicine out.

PENG earnings are tomorrow. Hoping for a dip so I can get in at the price I laid out in my thesis. I am expecting a strong print so I have low hopes. But that’s ok.

I’m sure im missing stuff but I want to get this sent out. Will send out my weekly subscriber chat in a bit and we can discuss!

This Substack is reader-supported. To receive new posts and support my work, consider becoming a free or paid subscriber.

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