First-Week Performance Ranking of AI Multi-Label Thematic Baskets

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first week of doing this. the plan is to post these every friday, mostly because reading "the s&p was up 1.2%" every week tells me nothing about what to actually look and the finviz sector thing isnt really reflective of anything since the sectors in my opinion arent reflective of what each company does properly. if this is useless tell me and ill adjust

every company gets exactly one gics bucket, so amazon is "consumer discretionary" while running one of the biggest cloud businesses on earth, and google and meta arent even in the tech sector, theyre in communication services with at&t. i wanted groups that mean something, so i fed company info to an ai, tagged each company by what it actually does, and pooled the tags into ~50 market cap weighted baskets, basically diy etfs.

this week:

augmented reality +16.7%, business software +11.9%, aerospace & defense +11.3%.

biggest loser was art & collectibles -15.8%.

median of all baskets was +3.4%, and spy did +3.4% for comparison, idk if this is a fluke or what though, though not really that suprising, the portfolios of each theme is created from etf portfolios.

and yes my tags overlap, thats on purpose, amazon really is both retail and cloud. gics picking one bucket in my opinion is the problem im tying to fix here.

i kinda feel like i should say that this is not investment advice.

Affected Tickers
SPYAMZNGOOGLGOOGMETAT
Post Analysis Summary

The OP does not make a directional call on any individual stock, but instead presents a thematic basket framework intended as an alternative to traditional industry classification. The premise is that GICS assigns each company to a single industry and therefore cannot fully describe companies spanning multiple businesses: for example, Amazon operates both retail and the large cloud computing business AWS; Alphabet and Meta are classified under Communication Services, in the same broad category as the traditional telecom company AT&T. The OP therefore feeds company business information into AI, allows each company to receive multiple labels, and aggregates the labels into approximately 50 market-cap-weighted stock baskets, structurally similar to custom thematic ETFs. The image shows a cross-sectional ranking for the week of August 3 to 7, 2026, but the footnote states that returns were actually measured through Thursday's close, so the figures do not cover a complete five-day week. Each dot in the chart represents one basket: Augmented Reality ranks first at +16.7%, Business Software is at +11.9%, and Aerospace & Defense is at +11.3%; Art & Collectibles ranks last at -15.8%, while Automotive Retail and Carbon Credits/Offsets are approximately -7.7% and -7.4%, respectively. The median return across approximately 50 baskets is +3.4%, and the SPY reference line in the chart is also labeled +3.4%. The author plans to provide updates every Friday, hoping to identify more specific areas of capital concentration than simply asking how much the S&P rose during the week. The post does not disclose actual positions, cost bases, price targets, valuation models, basket constituents, or executable trades. It also does not explain the AI model, input data, labeling rules, ETF sample sources, rebalancing frequency, or whether returns include dividends, making it closer to a data-product prototype than complete securities research. Its potential use is monitoring thematic rotation, while continued publication and unusually strong or weak thematic performance could serve as future catalysts. However, the author's implicit assumptions include that AI labels can consistently reflect companies' actual businesses; overlapping labels will not cause the same large company to be repeatedly included and dominate multiple baskets; market-cap-weighted results represent the themes themselves rather than shared exposure to a few mega-cap companies or the source ETFs' holdings; and one week of price movement provides incremental information. The most important weakness is the lack of reproducibility: without constituents, weights, and beginning and ending prices, results such as +16.7% cannot be verified, nor can readers determine whether survivorship bias, post hoc naming, duplicate exposure, or data errors are present. The author also acknowledges that the baskets originate from existing ETF portfolios, so the exact match between the basket median and SPY may primarily reflect a shared market factor rather than demonstrate that the classification method has independent predictive value. A comment suggests that Pokémon cards should be separated from collectibles, further exposing that the Art & Collectibles label may be overly broad and may contain assets with divergent performance.

Discussion Summary

The comment sample contains only 1 comment, so the discussion is clearly insufficient. The sole commenter argues that Pokémon cards performed better than the collectibles basket shown in the chart and should be separated from Art & Collectibles. This supports the need for more granular thematic labels, but it does not provide substantive validation of the return calculations or the overall methodology, and the OP did not respond.

Fact Check
supported
GICS assigns each company only one classification at each level, primarily based on its principal business activity.
MSCI's official documentation states that each company is assigned a single classification at each of the four GICS levels. Revenue is an important factor in determining a company's principal business activity, while earnings and market perception are also considered.
supported
Amazon has significant retail and cloud computing businesses, so a single industry label cannot fully represent its business structure.
Amazon 2025 Form 10-K divides its business into North America, International, and AWS segments. AWS generated approximately $128.725 billion in full-year revenue, accounting for approximately 18% of consolidated revenue, and contributed approximately $45.606 billion in operating income, which is sufficient to demonstrate the cloud business's significant economic impact.
supported
Alphabet and Meta are classified under Communication Services rather than Information Technology.
Public fund holdings classification documents list Alphabet and Meta under Communication Services. This example supports the OP's description of the boundaries created by traditional industry classifications.
unclear
Among approximately 50 AI thematic baskets, Augmented Reality rose 16.7%, Business Software rose 11.9%, Aerospace & Defense rose 11.3%, and Art & Collectibles fell 15.8%.
These are proprietary calculations for baskets created by the OP. The post does not disclose constituents, weights, price sources, beginning and ending timestamps, or calculation code. The image only demonstrates that the author presented these figures and does not allow their accuracy to be independently verified.
unclear
The median return across all baskets and SPY's performance over the same period were both +3.4%.
The basket median cannot be recalculated without the underlying data. The measurement period for SPY is also ambiguous: the title states August 3 to 7, but the image footnote says the figures are through Thursday's close, and the post was published before Friday's close. It therefore cannot be treated as a complete weekly return.

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