---
title: "Anthropic IPO: 1 Key Lesson Investors Can Learn From SpaceX"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/299530122.md"
description: "Investors are advised to avoid buying Anthropic's upcoming IPO immediately, using SpaceX's recent performance as a cautionary tale. Despite high initial interest, SpaceX's stock fell significantly due to investor skepticism over its massive capital expenditures on AI infrastructure, which outpaced revenue growth. Historical data shows large-cap IPOs often see modest gains after the first year. Given similar heavy spending concerns and market volatility, waiting is recommended rather than buying at launch."
datetime: "2026-09-19T15:40:00.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/299530122.md)
  - [en](https://longbridge.com/en/news/299530122.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/299530122.md)
generator: "portal-rs"
---

# Anthropic IPO: 1 Key Lesson Investors Can Learn From SpaceX

The **Space Exploration Technologies** (SPCX -1.36%) IPO was one of the most highly anticipated public offerings in years. Within a few days of going public, SpaceX had a valuation of $2.7 trillion after raising nearly $86 billion in funding.

Then things started going sideways. The stock began falling amid fears that SpaceX is spending too much on artificial intelligence (AI) infrastructure, and shares still trade below their opening price of $150 as of this writing. At one point, the share price fell enough to wipe out more than $1 trillion from SpaceX's valuation over a one-month span.

Another AI company, Anthropic, could go public as soon as next month. Like SpaceX, it's a highly anticipated IPO. But investors would be wise to take the recent SpaceX sell-off as a warning that buying IPO stocks when they first go public is rarely a good move. History shows it's far better to wait before buying -- here's why.

![Two arrows diverging on a chart.](https://imageproxy.pbkrs.com/https://g.foolcdn.com/image//query-b3A9cmVzaXplJnVybD1odHRwczovL2cuZm9vbGNkbi5jb20vZWRpdG9yaWFsL2ltYWdlcy84ODczMjcvZ2V0dHlpbWFnZXMtNDcxMDgwODc5LTEyMDB4ODAwLTViMmRmNzkuanBnJnc9Mzg0MA?x-oss-process=image/auto-orient,1/interlace,1/resize,w_1440,h_1440/quality,q_95/format,jpg)

Image source: Getty Images.

## What potential Anthropic investors can learn from SpaceX's $1 trillion wipeout

While there was an initial surge in interest for SpaceX, investors quickly turned their attention to the company's massive AI spending spree. The company's capital expenditures (capex) jumped 308% in the first six months of this year, compared to 2025, reaching $28.5 billion. That's a hefty sum, especially when you consider that SpaceX sales were just $12.5 billion over that same period.

While SpaceX is well known as a rocket company, its AI business is its largest expense. SpaceX owns the Grok chatbot and is building its Colossus data centers to sell AI computing capacity to customers. That resulted in 86% of the company's capex going to AI.

The problem for AI companies right now is that investors are increasingly skeptical of excessive spending without corresponding significant growth in revenue or profits.

Anthropic said recently that it has an annualized revenue run rate of $65 billion, nearly seven times its total sales in 2025. But Anthropic hasn't disclosed its capex yet, and it's safe to say the company is spending heavily to build out its AI capacity, likely much more than SpaceX.

Investors didn't like SpaceX's ramp-up in AI spending, and the sticker shock could be even greater with Anthropic.

Expand

![Space Exploration Technologies Stock Quote](https://imageproxy.pbkrs.com/https://g.foolcdn.com/image//query-b3A9cmVzaXplJnVybD1odHRwczovL2cuZm9vbGNkbi5jb20vYXJ0L2NvbXBhbnlsb2dvcy9tYXJrL1NQQ1gucG5nJnc9MTI4?x-oss-process=image/auto-orient,1/interlace,1/resize,w_1440,h_1440/quality,q_95/format,jpg)

## NASDAQ: SPCX

Space Exploration Technologies

Today's Change

(-1.36%) $-2.10

Current Price

$152.71

### Key Data Points

Market Cap

$2.1TMarket cap calculated using publicly traded shares outstanding only. Does not include unlisted, private, or dual-class non-traded shares. Implied market cap may vary.

Day's Range

$149.93 - $156.60

52wk Range

$104.83 - $225.64

Volume

335.7M

Avg Vol

96.9M

## History says the Anthropic IPO will fizzle at first

**Jefferies** research spanning more than two decades of IPOs shows that companies worth $10 billion or more when they go public average a 26.5% return in their first week. Pretty good, right? The problem is that over the first 12 months following their public debut, the average share price gain is just 3.5%.

Add to this historical data the fact that investors are skeptical of high AI spending and that recent calls for an AI slowdown are hammering tech stocks, and you have a recipe for one very volatile Anthropic IPO.

So, if there's one lesson SpaceX (and history) can teach potential Anthropic investors right now, it's to probably sit out the IPO when it happens.

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## Related News & Research

- [SpaceX (SPCX) May Buy Data from Failed Startups to Train Grok](https://longbridge.com/en/news/299353736.md)
- [SpaceX's Grok 4.7 Beats GPT-5.6 Sol on Coding While Charging Less](https://longbridge.com/en/news/299674563.md)
- [SpaceX AI Unveils Grok 4.7: Flagship Generation for Coding and Knowledge Work Priced Same as Grok 4.6](https://longbridge.com/en/news/299671309.md)
- [Anthropic tabs Accenture as embedded evaluator to help with AI slowdown proposal](https://longbridge.com/en/news/299548038.md)
- [Anthropic launches Claude Opus 5.5 with stricter safeguards for cybersecurity](https://longbridge.com/en/news/299795182.md)

---
> **Disclaimer: This article is for reference only and does not constitute any investment advice.**