What an index represents
NATDAQ stands for National Association of Token Dealers Automated Quotations. Token activity indexes use observed model usage and a base value of 100. The index is an activity measure, not an investable security, model token price or financial return. Top 10 and Top 50 refer to requested basket size.
Read modality baskets carefully
Text, voice, image, video, speech and transcription represent different capabilities. Membership requires source observations for the relevant measure. If fewer than the requested number qualify, the basket is partial. A voice model is not automatically interchangeable with a speech-synthesis or transcription model.
History has different coverage
The public modality history exposes named series and aggregated Others. A category chart cannot always reconstruct past Top 10 or Top 50 membership. The NATDAQ page labels category history separately, excludes incomplete weeks, and shows snapshot dates and attribution.