\begin{tabular}{lr} \toprule Step & Count \\ \midrule iShares IWV holdings file, equity lines with a ticker (as of Oct 23, 2026); count reported by the build log, source file not archived & 2{,}587 \\ \quad of which mapped to an SEC CIK (CVRs, escrow lines and FDIC-only banks excluded) & 2{,}573 \\ \quad distinct CIKs (share classes collapsed) & 2{,}555 \\ S\&P~500 constituents, cached snapshot of 2026-05-25 (500 CIKs) & 503 \\ \midrule Merged issuer universe (distinct CIKs) & 2{,}564 \\ \quad in both lists & 491 \\ \quad S\&P~500 only & 9 \\ \quad Russell proxy only & 2{,}064 \\ \midrule Issuers with at least one 10-K, 10-Q or 8-K since 2010 & 2{,}499 \\ Issuers without any such filing (foreign private issuers filing 20-F/40-F, FDIC-only banks) & 65 \\ Issuers with at least one resolved project & 2{,}492 \\ \bottomrule \end{tabular}