Why SpaceX Stock Rebounded Nearly 50%: AI, Starlink, Starship and the Key Risks

After falling as low as $104.83 in early August, shares closed at $150.88 on September 16. Measured from the intraday low, the stock has rebounded roughly 46% in a little over a month — close to a 50% recovery. SpaceX jumped another 5.15% on September 16 alone.

The rebound is not being driven by one breakthrough. Instead, investors are reassessing a combination of AI spending, Starlink growth and the approaching commercialization of Starship.

AI Spending Is Starting to Look Less Like a Liability

When SpaceX released its first quarterly earnings report as a public company in August, the numbers were strong.

According to StockX's Q2 2026 earnings report, revenue reached $7.8 billion, up 92% year over year, while adjusted EBITDA rose 191% to $3.54 billion.

Connectivity, which includes Starlink, generated $4.29 billion in revenue and $1.66 billion in operating income. Starlink subscriptions roughly doubled from a year earlier.

But those numbers were initially overshadowed by one much larger figure: capital expenditure. SpaceX spent about $15.8 billion on AI infrastructure in Q2 alone, bringing first-half AI capex to roughly $23.6 billion.That created a simple concern: SpaceX might be using the cash generated by Starlink to fund an extremely expensive AI infrastructure buildout with uncertain returns. Shares sold off sharply after the earnings report.

Over the past month, however, the market has started to view that spending differently.

AI revenue reached $2.56 billion in Q2, up 213% from the previous quarter. SpaceX also disclosed $14.1 billion of contracted sales from new Cloud Services Agreements, while the AI segment produced $1.15 billion of adjusted EBITDA.

The narrative has therefore shifted.

A month ago, investors saw:

Massive AI capex → cash burn → uncertain returns.

Now they increasingly see:

Massive AI capex → compute capacity → customer contracts → revenue.

That change in perception is one of the main reasons SpaceX has been able to recover so quickly.

Starship Is the Latest Catalyst

The most immediate catalyst behind the latest move is Starship.

SpaceX is targeting September 22 for Flight 14, which is expected to be the vehicle's most important test yet. Starship will attempt to enter a stable Earth orbit for the first time and deploy the first batch of production Starlink V3 satellites.

SpaceX shares rose more than 5% on September 16 following the announcement.

The market is not simply betting on another successful rocket launch. Starship is critical to the economics of almost every major SpaceX business.

If the vehicle eventually achieves rapid and full reusability, SpaceX could launch much heavier payloads at significantly lower costs.

The chain is straightforward:

Lower Starship launch costs → faster Starlink V3 deployment → more network capacity → more broadband and mobile customers.

Starlink already has around 12 million subscribers and operates a constellation of roughly 10,000 satellites. Its subscriber base has nearly tripled since 2024, according to Reuters.

That is why investors are increasingly valuing SpaceX as more than a launch company. It is becoming a combination of space infrastructure, global telecommunications and AI computing.

What Could Go Wrong?

The first risk remains capital spending.

SpaceX has already spent more than $23 billion on AI infrastructure during the first half of 2026. Revenue is growing quickly, but investors still need evidence that these contracts can generate attractive long-term returns.

The second risk is share supply.

Around 911.5 million previously restricted shares became eligible for trading in August, more than doubling the company's public float. Additional lockup expirations are still coming, meaning employees and early investors could continue adding supply to the market.

The third risk is Starship expectations.

Investors are already pricing in progress from Flight 14. If the September 22 mission suffers a significant setback — particularly in orbital insertion or Starlink V3 deployment — some of the recent gains could reverse quickly.

Ultimately, the move from roughly $105 back toward $150 looks more like a valuation recovery than a return to the speculative enthusiasm seen immediately after the IPO.

A month ago, the market was focused on AI spending, lockup pressure and valuation.

Today, it is focused on AI monetization, continued Starlink growth and Starship moving closer to commercial operations.

The next phase will depend on whether SpaceX can turn those expectations into actual revenue and profits fast enough to justify the rebound.