The first signal of a new bond issue usually shows up on EDGAR

NCSX-IS is an event-driven index — it re-versions only on new pricing or new filings. This page puts the last 45 days of SEC filings from 9 AI-infrastructure issuers (6 in the index + 3 watchlist: Nebius / IREN / Hut 8) into one table. Pricing-chain forms (FWP / 424B / S-3 / F-10) are flagged automatically.

Date	Issuer	Form	Tag	Filing
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Red line: we aggregate public filings only — no credit ratings, no investment advice. 8-Ks are not pre-judged by Item (which ones are true bond-issuance signals is decided by our internal edgar_watch, which alerts item by item); form meanings per the SEC original. Third-party ownership filings (SCHEDULE 13G/13D) and ownership forms (3/4/5) are filtered out as noise.