i can't say for certain because the information can be skewed. you can't depend on the 'theme' map to trade on ideas without a deep dive. i will give u a live example now under 'Waste' theme.
1. $Clean Harbors(CLH)$ is a 15.8 B large cap company +0.42%.
2. $Ball Corp.(BALL)$ is a 15 B large cap company -1.01%.
3. $LanzaTech Global(LNZA)$ is a 181 Mil nano cap company now +16%.
4. most of others in the list are muted in % chg.
waste is +1.48%, the calculation is certainly not cap-weighted, it is also not equal weighted. it seems to be price weighted like $Dow Jones(.DJI)$ but price weighting is not accurate with only 10 companies with such vastly differ market cap in the calculation.
i am not confident to rely on data like this if i do not know the underlying formula to the data.
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