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The IPO Stack

Weekly pre-IPO intelligence for investors who want to see what's coming before Wall Street does.

What's inside

Five sections.
One weekly edge.

Every issue is built around the data that matters — not the noise.

💰
Biggest Rounds of the Week
The most significant funding announcements, what they signal, and which companies just changed their trajectory.
📈
IPO Pipeline Moves
S-1 filings, IPO announcements, valuation shifts, and companies that just moved stages — before the mainstream press catches on.
🔍
Company Deep-Dive
One company, fully dissected. Business model, funding history, competitive position, and IPO likelihood — all in plain language.
📡
Sector Signals
What's happening in AI, defense tech, semiconductors, and space — pattern-matched across 200+ companies in the database.
⚡
Contrarian Data Insights
The data points everyone else is ignoring. Companies that are quietly building toward an IPO. Sectors defying the narrative.
📬
Free. Always.
The IPO Stack is free, every Tuesday. No paywall, no teaser content. Premium subscribers get deeper database access on the platform.
Sample issue

What a Tuesday looks like

from: newsletter@techstackipo.com · subject:
The IPO Stack #12 — $2.4B week, CoreWeave files S-1, the defense tech signal you missed
The IPO Stack · Issue #12
CoreWeave files S-1 at $35B valuation — the AI infrastructure race just got real

The GPU cloud provider's S-1 is the clearest signal yet that hyperscale AI infrastructure is its own IPO category. Here's what the filing tells us about the next 18 months.

💰 Biggest Rounds This Week
Anduril Industries — $1.5B Series F. Defense tech is now the highest-valued private category. Watch for Palantir-style direct listing positioning.
xAI — $500M bridge. Grok 3 launch accelerated timeline; now tracking vs. OpenAI's IPO signals.
Shield AI — $400M Series F. Autonomous military aircraft — the defense AI company nobody's talking about.
📡 Sector Signal: Defense Tech
Three of the top 5 rounds this week were defense-adjacent. The IPO pipeline has 12 defense tech companies now at Series D+. Sector rotation is happening faster than 2021 SaaS.
Contrarian take: The company everyone's watching in AI semiconductors isn't the one that just raised. There's a quieter name at Series C that filed two key patents in Q4...
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Built on 200+ pre-IPO companies

200+
Companies tracked
4
Sectors covered
52
Issues per year

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