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Data from University of Florida, Warrington College of Business (Jay Ritter), delivered clean.
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What Datadory delivers from University of Florida, Warrington College of Business (Jay Ritter)
4Jay Ritter IPO Data
U.S. Treasury Interest Rate Data (Daily Yield Curve)
SIFMA Capital Markets Fact Book
World Bank Stock Market Indicators
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Straight answers about University of Florida, Warrington College of Business (Jay Ritter) data
What is the Jay Ritter IPO dataset?
One cataloged record packing roughly sixty files of IPO statistics maintained by Jay R. Ritter of the University of Florida's Warrington College of Business: monthly US IPO counts and average first-day returns from January 1980 through December 2025, deal-level cohort lists back to 1975, underwriter reputation ranks from 1980 onward, around 25 annual series, and separate files for roughly 55 countries.
How far back does Jay Ritter IPO data go?
US annual series begin in 1960 or 1975 depending on the file, monthly counts-and-returns detail begins January 1980 and runs unbroken through December 2025, deal-level lists reach to 1975, seasoned equity offering counts cover 1970-2015, and first-day runup tables extend through 2026.
What is the difference between gross and net IPO counts?
Gross includes SPACs, direct listings, penny stocks, units, closed-end funds and banks/S&Ls. Net excludes units, banks/S&Ls, ADRs, sub-$5 offers and non-CRSP listings - and the published average first-day return is computed on the net population. January 1980 makes the gap concrete: 16 gross IPOs against 9 net, with the 13.8 percent average applying to the nine.
Which countries does the archive cover outside the United States?
Roughly 55 countries carry separate series generally spanning 1980-2025, consolidated in an update table dated March 2026. Documented starts include Australia from 1984, Brazil from 2004, China, India, Indonesia and Turkey from 1990, Poland from 1991 and Thailand from 1987, which makes cross-country comparison of first-day-return distributions straightforward.