Rebuilt every trading night. Current files as of Sep 4, 2026.
Open data
Every figure on this site is published as JSON at a stable address. Free to use, including commercially, with attribution to ETFIQ and a link to the page or file you used.
How to cite
Name ETFIQ as the source, state the as-of date carried in the file, and link to etfiq.com. For example: ETFIQ, buffer desk, data as of Sep 4, 2026, etfiq.com.
The files
What is in them today
245 buffer ETFs, 338 option-income ETFs and 289 thematic ETFs, with filed holdings books for 552 funds.
Method
Terms come from issuer product pages and prospectus supplements filed with the SEC. Prices and distributions come from exchange end-of-day data. Holdings come from Form N-PORT and, where an issuer publishes one, its daily file. Fees come from the prospectus risk and return data filed as XBRL. Every figure ETFIQ computes rather than quotes is marked on the page and described on Standards. Each published number is recomputed from the raw sources every night by separate code, and anything that does not reproduce is listed before the site is published.
Fair use
The files are served from a static host with no rate limit and no key. Please cache rather than fetch repeatedly; they change once a night.