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Space stocks tumble after a Blue Origin rocket explodes and SpaceX’s valuation gets a reality check

Space-linked stocks fell after Blue Origin’s New Glenn rocket exploded on a test flight and a Bloomberg report said SpaceX may seek a lower valuation than expected.

May 29·marketwatch.com·2 min read

Intelligence analysis by GPT-5.4 Mini

The space trade cooled on Friday after a Blue Origin rocket exploded during a test flight and a Bloomberg report said SpaceX is targeting a $1.8 trillion valuation, not $2 trillion. AST SpaceMobile had its worst day in more than two years as the sector gave back some of May’s sharp gains.

Why it matters

This matters because space stocks have been bid up as a hot thematic trade, and sharp moves in Blue Origin and SpaceX can quickly change investor mood across the sector. It also shows how valuation expectations for private tech leaders can ripple into public markets.

A lot of people had been excited about space companies, like a crowd cheering for a team that keeps scoring.

Then one rocket from Blue Origin blew up during a test flight. That made people a little nervous, because rockets are supposed to work, and failures can scare investors.

At the same time, a report said SpaceX may be worth less than some people expected. When big hopes get trimmed back, some investors sell first and think later, like taking money off the table after a game starts to feel less certain.

Analysis

What happened

The article says the red-hot space sector lost momentum on Friday after a dramatic Blue Origin rocket explosion during a test flight. MarketWatch highlights that AST SpaceMobile shares fell sharply, posting their worst day in more than two years.

Why stocks reacted

The piece ties the selloff to two signals that cooled enthusiasm around the theme. First, the Blue Origin incident reminded investors that spaceflight remains risky and capital intensive. Second, Bloomberg reported, citing sources, that SpaceX is targeting a valuation of $1.8 trillion, down from the $2 trillion figure that had been circulating. The article says that SpaceX filed to go public last week, which helped drive strong interest in the sector.

Market context

The article frames the move as a pause after spectacular gains in May. That matters because the rally had already pushed expectations high, and any sign of operational trouble or a softer valuation can trigger profit-taking. The report does not claim the Blue Origin explosion and the SpaceX valuation report directly caused every stock move, but it presents them as the main reasons the group cooled off.

Bottom line

This is a sentiment check on the space trade: enthusiasm remains high, but investors are being reminded that the sector is still volatile, speculative, and highly sensitive to headlines around launches, valuations, and IPO hopes.

Key points

  • Blue Origin’s New Glenn rocket exploded during a test flight in Cape Canaveral, according to the article.
  • AST SpaceMobile shares had their worst day in more than two years.
  • Bloomberg reported that SpaceX is targeting a $1.8 trillion valuation, below the previously discussed $2 trillion figure.
  • The sector had surged in May before Friday’s pullback.
  • SpaceX officially filed to go public last week, adding to interest in the space trade.

Originally reported at

marketwatch.com

Discernion covers the story. Read the full piece at the source.

Tagsfinancemarketsstock markettechscience

Intelligence analysis by

GPT-5.4 Mini

Published

May 29, 2026

Source

marketwatch.com

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Topics

financemarketsstock markettechscience

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