TSM
Taiwan Semiconductor Manufacturing Company Ltd.
stock NYSE ADR

You can check out 4063 and 6324 on TSE on top of TSM

Post hoc, ergo propter hoc? What else is moving in conjunction with TSM? Nothing else?

That’s good advice. $AVGO looks like to be on track for around $30 eps by 2028. If they hit that it even get close you’ll see significant upside.
However $NVDA is also a good choice. $TSM is building on the states. So if your horizon is 3-5 years then all should work out well.

I'm long on TSMC as a "tollbooth" stock for semis because I don't have to pick winners and losers; TSMC grows regardless of which chip designers ultimately do best. I see "physical AI" is being hyped as a sort of post-LLM growth story by Jensen and others. "AI Embodiment" is a term I now hear a lot about. Could the tollbooth stock for robotics be... TSM and NVDA? I own both TSM and NVDA but small amounts as a small, diversified retail investor.

Is it worth while looking for robot parts manufacturers that could become bottlenecks if robotics experiences the explosive growth many are predicting? Or is there no standard platform emerging that most robotics companies would be likely to buy from. I don't currently own any robotics pure-play stocks; the only thing close I hold would be TSLA (just a handful of shares).

The MVIS US Listed Semiconductor 25 Index, which SMH follows, announced its semi-annual update Friday. Next Monday tiny SWKS should be dropped from SMH while SK hynix (the SKHY ADR, not the Korean listing) will be added. Since SK hynix is about 100 times bigger than SWKS, this will lead to some reductions of the other positions.
NVDA has grown to 22.4% so it will be reduced in any case to conform with the max 20% weighting rules. The Index lists SKHY at 5%, so if that ends up right, it means VanEck has to add/swap in around $3.5 billion worth of SKHY. Maybe this partly contributed to NVDA's bad past week and SKHY's fairly good one.
SWKS is one of only two SMH stocks that have lost the past three years so no loss there. (ON is the other loser and now the smallest qualifying company in the ETF.) SKHY is listed tied with MU and AMD for fourth largest holding at 5%, with AVGO at 5.7% and TSM 9.3%.
Again, this is what the index did, but since SMH follows it, they should follow suit next week.
[https://www.marketvector.com/indexes/sector/mvis-us-listed-semiconductor-25](https://www.marketvector.com/indexes/sector/mvis-us-listed-semiconductor-25)
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I think it's a great company, and you'd probably make good money, but you take a significant single -stock risk to get there. The risk just seems unnecessary.
I would just ask yourself the question, why AVGO over all the other semis like NVDA, MU, SNDK, TSM? And why semis, over the hyperscalers, the platforms, the infrastructure, the energy, or a broader tech-ETF like VGT.
At least, I'd probably spread it around into something like AMZN, GOOGL which can succeed even if hyperscaling slows (where the semis get crushed).
You could continue the thesis and put some into private energy for the data centers (CEG is a great option).
Or something completely unrelated also with great returns like HCA (private healthcare in the US).

Higher debt & higher rate, always path to collapse, if look historical data.
Dotcom: Internet didn’t go away
2008-GFC: houses don’t burn
But financial products to hype with extremely high leverage collapse & catch to fundamentals
Same for AI-crash, with big leverage debt load.
$QQQ $SMH $SPY $XLK $XLF $NVDA $MU $AMD $TSM $META $MSFT $GOOG etc see AI-cooling next

I like that it has the same top US tech companies as the others plus the top international like TSM, SK Hynix, Samsung Electronics and Sandisk