PRODUCT — DATASET

IPO Data API

IPOS

Every US IPO from S-1 to pricing: offer terms, underwriters, lockups, and financials, parsed from SEC filings. History back to 1993.

From filing to first trade

A company going public in the US registers with the SEC on Form S-1, then amends it as the deal takes shape. The price range, the share count, the syndicate banks: each amendment sharpens the terms. The final pricing lands in a 424B4 prospectus.

We parse that trail into one record per deal. Offering size, price range, final price, shares, underwriters, lockup period, and the company's last fiscal year financials, all as fields rather than prospectus prose.

The history runs to 1993. Three decades covers the dot-com bookends, the 2021 cycle, and every quiet window in between, which makes the dataset as useful for studying cycles as for tracking this week's deals.

What you get

Source
SEC EDGAR S-1 and 424B4 filings
History
1993 to present
Updates
Within hours of filing
Coverage
All US IPOs filed with the SEC
Endpoints
GET /ipos, GET /ipos/tickers

Why teams use it

The deal, structured

Price range, final price, shares offered, offering size, and exchange as queryable fields, not buried in a prospectus.

Underwriters and lockups

Lead and co-managers plus lockup terms, extracted from the filing. Track banks across deals and see when lockups expire and insider supply hits the market.

Financials included

Last fiscal year revenue and income travel with the deal record, so pre-IPO research doesn't need a second source.

Thirty years of cycles

Back to 1993: enough deals to study underwriter track records, first-day performance across eras, and aftermarket behavior.

See it in code

terminal
bash
curl -H "Authorization: Bearer YOUR_API_KEY" \
  "https://ryxel.io/api/ipos"

What teams build with it

IPO calendars

Upcoming and recently priced deals in one schema, ready for a calendar view or a screener.

Underwriter league tables

Aggregate deals by bank to build your own league tables and track syndicate patterns over time.

Lockup expiry tracking

Lockup expirations are scheduled supply. The field is on the record, so the calendar builds itself.

Historical research

Three decades of deal terms for studies of pricing, allocation, and aftermarket returns.

Frequently asked questions

What filings does the dataset parse?

S-1 registration statements and 424B4 final prospectuses filed with the SEC.

How far back does IPO history go?

1993. That includes the late-90s boom, the 2008 drought, the 2021 peak, and every cycle since.

How fast are new deals added?

Within hours of the SEC filing. Amendments update the record as terms firm up.

Are underwriters and lockups included?

Yes. Lead and co-managers, lockup period, offering size, price range, final price, and last fiscal year financials are all structured fields.

TALK TO US

Talk to us about access

Tell us what you're building and which datasets you need — we'll set you up with an account, an API key, and access to the data.