Big IPOs, in facts.
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names on the desk
IPO Desk
Confidential S-1 announced Jun 1, 2026 · terms not yet public
Filing announced
Jun 1, 2026
Terms
Not public until the S-1 flip
Calendar data: Finnhub, refreshed nightly. Verify terms against the prospectus on SEC EDGAR — the prospectus is the primary source.
Contra reads its full pattern library against filings, insider activity, and market structure. A company with a confidential draft S-1 has nothing on the public record yet — there is no pattern surface at all. Each stage below adds something readable. That is the difference between a date you can verify and a story you can’t.
The company says it submitted a draft registration statement to the SEC. Terms, size, and financials stay private — a confidential filing puts nothing on the public record except the announcement itself.
The S-1 appears on EDGAR at least 15 days before the roadshow begins. First look at real financials, risk factors, float, and lockup terms — the first falsifiable material.
Price and share count are set at the end of the roadshow; trading starts the next day. Timing depends on market conditions and the company's choice.
The average US IPO has closed its first day about 18% above the offer price across 1980–2023 (Ritter, University of Florida IPO statistics). The pop reflects deliberate underpricing and attention — it says nothing new about the business.
Individual investors are net buyers of attention-grabbing stocks — names in the news, with extreme volume or extreme one-day returns — and that buying pattern predicts underperformance (Barber & Odean, 'All That Glitters', 2008). IPOs are the single most attention-concentrated event in markets.
IPOs as a group have underperformed size-matched peers over the three years after listing (Ritter 1991, confirmed in updated samples through 2023). The lag concentrates in smaller and unprofitable issuers — the kind retail buys most eagerly.
When the (typically 180-day) lockup ends, insiders can sell for the first time. Expiry weeks have historically run ~1.5% below market with a permanent ~40% volume increase (Field & Hanka 2001). It is on the calendar from day one.
Underwriters' analysts must wait 10 calendar days before publishing (FINRA Rule 2241). Coverage then arrives in a cluster and skews positive (Bradley, Jordan & Ritter 2003) — initiation-day enthusiasm is a schedule, not a discovery.
Historical base rates from published academic research, cited inline. Education, not investment advice.
Every morning, Contra reads the stock, commodity, and bond markets for the patterns that move retail returns — and says “no view” when there’s nothing to read, which is the honest answer on most IPO day-ones.