SpaceX Just Had the Biggest IPO in History — Here's What It Means for Australian Investors

On Friday 12 June 2026, SpaceX rang the opening bell on the Nasdaq under the ticker SPCX — and by the closing bell, the world looked a little different.

Here's what happened in one trading day:

SpaceX priced its IPO at US$135 per share, raising US$75 billion — the largest initial public offering in history, more than double the previous record holder, Saudi Aramco's 2019 listing.
The stock opened at US$150, climbed through the day, and closed at US$160.95, a gain of 19.2% on debut.
That single-day pop pushed SpaceX's market capitalisation to roughly US$2.1 trillion, instantly making it the seventh-largest publicly traded company in the world — bigger than Tesla.
Elon Musk's stake, combined with his existing Tesla holdings, made him the first person in history with a paper net worth above US$1 trillion.

If you've spent any time on social media, in group chats, or scrolling finance news over the weekend, you've already seen the headlines. The question most Australians are now asking isn't "what happened?" — it's "can I get in, and should I?"

This guide walks through exactly that: what SpaceX actually is, why this listing broke every record on the board, how Australians can legally buy SPCX shares, what it costs in real dollars, the tax rules, and — just as importantly — the risks that the hype headlines tend to skip.

This is general information, not a tip, a prediction, or advice tailored to you. Think of it as the explainer you'd want a switched-on friend to send you before you do anything with your own money.

What you're actually buying when you buy "SpaceX"

The name SpaceX conjures images of rockets landing themselves on drone ships. But the company that just listed is really three businesses bundled into one ticker, and they're at wildly different stages of maturity.

1. Starlink — the profitable anchor. SpaceX's satellite internet division is the financial engine of the company. It's reportedly generating around US$11.4 billion in annual revenue at roughly a 63% EBITDA margin, with more than 10 million subscribers worldwide. This is the part of the business that already makes real money, and analysts watching the stock in its first months will be focused heavily on subscriber growth here.

2. The launch business — rockets, Starship, and government contracts. This is the original SpaceX: Falcon 9, Falcon Heavy, and the Starship programme, which is being developed for NASA's Artemis Moon missions and, eventually, Mars. It's capital-intensive and the part of the prospectus that reads more like a science-fiction mission statement than a balance sheet — SpaceX describes its mission as building the technology "to make life multiplanetary" and "extend the light of consciousness to the stars."

3. The AI division — xAI, folded into SpaceX in early 2026. This is the newest and riskiest piece. SpaceX posted a net loss of roughly US$4.28 billion in the most recent quarter, driven largely by xAI's spending — the AI unit alone reported an operating loss of around US$6.36 billion. SpaceX is also acting as a "neocloud," renting out xAI's computing capacity to other AI companies.

In other words: when you buy SPCX, roughly a third of what you own is a highly profitable internet provider, a third is a capital-hungry rocket company with government backing, and a third is an AI bet that's currently burning billions of dollars a quarter. That blend is exactly why this stock is generating so much noise — and why the valuation discussion is so heated.

Why this IPO broke every record on the board

Record	Previous holder	SpaceX (2026)
Largest IPO by funds raised	Saudi Aramco (2019) — ~US$29 billion	US$75 billion
Valuation at listing	—	US$1.75 trillion, rising to ~US$2.1–2.2 trillion after day one
Retail investor allocation	Typically 5–10% of an IPO	SpaceX targeted around 30%, roughly US$22.5 billion of stock
Single founder's paper wealth	No individual had reached US$1 trillion	Elon Musk became the first trillionaire
Oversubscription	Large IPOs are often 2–4x covered	Reports put demand at more than 400% of available shares

The retail allocation point matters a lot for Australians, because it explains why so many people who applied for the IPO ended up with little or nothing — and why most Australians reading this will be buying on the open market, not at the US$135 IPO price.

It's also worth being clear-eyed about volatility. SpaceX-linked perpetual futures on crypto exchanges were trading 20–30% above the IPO price before the stock even opened, and the stock's intraday range on day one was US$149.34 to US$176.52 — a swing of more than 18% within a single session. The Motley Fool's IPO commentary summed it up well: this is a stock where "extreme price swings are inevitable" in the early weeks, partly because early private investors may sell down portions of their holdings, and partly because MSCI flagged SPCX for early inclusion in major indices from 13 June — meaning index funds will be forced buyers in the days immediately after listing.

Can Australians actually buy SPCX shares?

Yes — but with one important catch: SpaceX is not, and will not be, listed on the ASX. It trades exclusively on the Nasdaq in US dollars, which means you need a broker with access to US share markets.

There were technically three ways in for Australians:

Apply for an allocation in the Australian Offer — CommSec acted as the lead Australian retail broker, with applications due by 5pm AEST on 10 June 2026 under a separate ASIC-lodged prospectus. This window has now closed, and given the IPO was oversubscribed by more than 400% globally, most retail applicants — Australian or otherwise — will have received only a partial allocation, or none at all.
Buy on the open market from listing day (12 June 2026 onwards) — this is the option available to everyone now, via any broker offering Nasdaq access.
Indirect exposure through other listed vehicles — for example, US-listed funds that held pre-IPO SpaceX stock, or companies like EchoStar and AST SpaceMobile that hold SpaceX equity stakes and saw their own share prices jump on the back of the listing. These come with their own risks and are a different investment altogether — you're betting on the wrapper, not just the asset inside it.

For almost everyone reading this now, option two — buying on the open market through a broker with US share access — is the realistic path.

Step-by-step: how to buy SPCX shares from Australia

Step 1: Choose a broker with Nasdaq access

You can't use a standard ASX-only brokerage account. The main options Australians use for US shares include CommSec International, Stake, Superhero, Interactive Brokers (IBKR), Webull, moomoo, and Tiger Brokers. Each has a different fee structure — more on that below.

Step 2: Open and verify an international shares account

If you already have an Australian brokerage account, this is often just an "add-on" — CommSec, for example, requires an International Shares Account linked to your existing login. New-to-investing readers will need to go through standard ID verification (driver's licence or passport, plus a tax residency declaration).

Step 3: Complete a W-8BEN form

Any Australian buying US shares should complete a W-8BEN form with their broker. This certifies you're a foreign (non-US) investor and reduces US withholding tax on any future dividends from the standard 30% down to 15% under the Australia–US double tax treaty. SpaceX currently pays no dividend — it's reinvesting everything into Starship, Starlink and AI infrastructure — so this won't affect you immediately, but it's standard account setup and worth having in place for your broader US portfolio regardless.

Step 4: Fund your account and convert AUD to USD

You'll need to move Australian dollars into your broker's USD wallet (or have your broker do this automatically at the time of trade). This is where currency conversion fees come in — and they vary enormously between providers, which is the next section.

Step 5: Search "SPCX" and place your order

Once your account is funded, you search the ticker SPCX on the Nasdaq, check the live price, and place a market or limit order. Trades typically settle on a T+1 basis (the next US business day).

What it actually costs: comparing Australian brokers for buying SPCX

The advertised "$0 brokerage" or "low fee" headline often hides the real cost, which is the currency conversion spread. Here's how the main options compare for a hypothetical AU$2,000 purchase of SPCX shares (figures based on each provider's published rates):

Broker	Trade fee	FX conversion fee	Approx. total cost on AU$2,000
Interactive Brokers (IBKR)	~US$0.0005–US$0.0035 per share (min US$1)	~0.002–0.03%	Roughly AU$1–$2 — by far the cheapest
Superhero	US$2 flat (trades up to US$20,000)	~0.50% on USD wallet transfers	Roughly AU$10–$12
Stake	0.01% of trade value (min US$3)	~0.55–0.70% "USD per AUD" structure (effectively ~0.8–1% at current rates)	Roughly AU$18–$22
CommSec International	Standard CommSec brokerage rates apply	FX conversion built into International Wallet rate	Varies — generally mid-to-high range
Webull	US$0 commission	~0.50% FX spread	Roughly AU$10–$12

The key thing to understand about FX fees: a broker advertising "0.70% FX" doesn't charge 0.70% of your AUD amount — it typically charges 0.70 US cents per AUD$100, which at an AUD/USD rate around 0.70 works out closer to 1% of your money, not 0.70%. Always do the maths in actual dollars before you compare platforms.

For a one-off purchase of a few hundred or a couple of thousand dollars, the difference between the cheapest and most expensive option above might only be AU$15–$20. But if you're planning to build an ongoing US shares portfolio — not just buy SPCX once — those percentage differences compound significantly over time.

The tax side: what happens at tax time

A few things to keep in mind for your 2026–27 Australian tax return if you buy SPCX:

Capital Gains Tax (CGT) applies the same way it does for any share investment. If you sell SPCX for more than you paid (in AUD terms, after converting both your purchase and sale price using the relevant exchange rates at the time), the gain is added to your assessable income. Hold the shares for more than 12 months and you may be eligible for the 50% CGT discount as an individual.
Currency movements matter. Because SPCX is priced in USD, your actual gain or loss in AUD terms depends on both the share price and the AUD/USD exchange rate at the time you buy and sell. A rising US dollar (falling AUD) can amplify your gains — or your losses — on top of the share price movement itself.
No dividends to worry about (for now). SpaceX has not indicated any intention to pay a dividend, so there's nothing to declare on that front at this stage. If that changes in future, your W-8BEN ensures only 15% US withholding tax applies, which can then generally be claimed as a foreign income tax offset in Australia.
Record-keeping is on you. Keep records of the exact AUD cost (including brokerage and FX fees) for every purchase — your broker's statements should show this, but it's worth checking they convert at the correct date.

This is general guidance only — for anything beyond the basics (overseas income, multiple trades, currency hedging), a registered tax agent familiar with international shares is worth the conversation.

The risks nobody's putting in the headline

Here's where the "biggest IPO in history" framing can be misleading. Bigger doesn't mean safer — and several analysts have been blunt about the risks sitting underneath the excitement.

1. The valuation is extremely demanding. At roughly US$1.75–2.2 trillion, SpaceX is trading at somewhere around 100 times revenue by some estimates. For context, even the most richly valued "Magnificent Seven" tech giants typically trade at a fraction of that revenue multiple. A valuation this size prices in years — possibly decades — of flawless execution across Starlink, Starship, and xAI.

2. Two of the three businesses aren't profitable yet. Only Starlink currently generates a profit. The launch business is enormously capital-intensive, and xAI posted a US$6.36 billion operating loss in a single recent quarter. The bull case depends heavily on Starlink's subscriber growth continuing and xAI's spending eventually translating into revenue — neither is guaranteed.

3. Key-person risk is real and explicit. Morningstar analysts flagged that SpaceX's "governance profile under Musk, who also runs Tesla and other companies, is complicated," citing risks around "strategic execution, technological evolution, market dynamics, regulations, AI buildout, and key-person dependency." Musk's Class B shares carry 10 times the voting power of the Class A shares (SPCX) that the public can buy — meaning retail investors have essentially no influence over company direction, regardless of how many shares they hold.

4. Day-one volatility is not the same as long-term performance. A 19% first-day pop, with an intraday swing of over 18%, tells you about demand on listing day — it tells you very little about where the stock will be in six months or five years. IPO expert Jay Ritter noted the opening price was actually "disappointing relative to what betting markets had been predicting," even though it was still a strong debut. Analyst three-month base-case ranges for SPCX span as wide as US$120 to US$200 — a difference of more than 65% from the low to the high end.

5. "Buy the rumour, sell the news" is a genuine pattern. Early private investors — including employees who participated in pre-IPO share sales at lower valuations — may look to lock in gains in the weeks after listing, which can create selling pressure even on a fundamentally strong company.

6. Currency risk stacks on top of share price risk for Australians. As above — you're taking on AUD/USD movements in addition to SPCX's own volatility, in both directions.

None of this means SPCX is a "bad" investment — plenty of professional analysts hold genuinely positive long-term views on the business, particularly Starlink's growth trajectory. It means the risk profile is unusually wide for a company this size, and the people telling you it's a guaranteed life-changing opportunity are leaving out half the story.

So… should you buy SPCX?

This isn't a question anyone else can answer for you, but here's a framework that might help:

If you're buying because the headlines made it feel like you're "missing out" — that's the exact emotional state that tends to produce poor entry timing. The stock was already up 19% before most casual investors even knew the ticker.
If you're buying a small, considered position as part of a diversified portfolio — and you're comfortable that this single stock could move 20%+ in a week in either direction — that's a fundamentally different decision than putting a large chunk of your savings into it.
If you're curious about exposure to the themes (space, satellite internet, AI) without the single-stock concentration risk — broad-based global or technology ETFs already hold many of the companies SpaceX competes and partners with, and will likely add SPCX exposure over time as it's incorporated into major indices.
Waiting for SpaceX's first results as a public company — its first quarterly earnings report — is a perfectly reasonable approach. You'll get far more information about how the Starlink and xAI numbers are actually trending, without trying to read tea leaves from a single chaotic trading day.

Whatever you decide, the honest version of "should I buy SpaceX" is the same as it is for any high-profile, high-valuation listing: only with money you can genuinely afford to lose, and only as part of a plan — not a reaction to a headline.

If you're thinking about how a position like this fits into your broader financial picture — including how much you're putting toward your mortgage versus investing — our mortgage calculator can help you see the trade-offs between paying down debt and building an investment portfolio.

Frequently asked questions

1. Can I buy SpaceX shares on the ASX? No. SpaceX is listed exclusively on the Nasdaq under the ticker SPCX, in US dollars. To buy it, you need a broker with access to US share markets — the ASX does not list SPCX and won't.

2. What was the SpaceX IPO price, and what is it trading at now? SpaceX priced its IPO at US$135 per share on 11 June 2026. It opened at US$150 on its first trading day (12 June) and closed at US$160.95, up 19.2% on debut.

3. Is it too late to buy SPCX at the IPO price? Yes — the US$135 IPO price was only available to investors who participated in the formal bookbuilding process, including the Australian Offer through CommSec, which closed on 10 June 2026. Everyone buying from 12 June onwards is buying at the open-market price.

4. Which Australian brokers let me buy SPCX? Brokers offering US share (Nasdaq) access include CommSec International, Stake, Superhero, Interactive Brokers (IBKR), Webull, moomoo and Tiger Brokers. You'll need an international or US shares account, which usually involves ID verification and a W-8BEN form.

5. What is a W-8BEN form and do I need one? A W-8BEN is a US tax form that certifies you're a foreign investor, reducing US dividend withholding tax from 30% to 15% under the Australia–US tax treaty. Most Australian brokers require it as part of opening a US shares account. SpaceX doesn't currently pay a dividend, but it's standard practice regardless.

6. Do I pay tax on SpaceX shares in Australia? Yes. Any capital gain when you sell is subject to Australian Capital Gains Tax, calculated in AUD terms (factoring in exchange rate movements between your purchase and sale). Holding for over 12 months may qualify you for the 50% CGT discount as an individual. This is general information — speak to a tax professional for your specific situation.

7. What is SpaceX's market valuation now? At its IPO price, SpaceX was valued at roughly US$1.75 trillion. After its 19% first-day gain, its market capitalisation reached approximately US$2.1–2.2 trillion, making it the seventh-largest publicly traded company in the world.

8. Is SpaceX profitable? Only one of its three main divisions — Starlink — is currently profitable, reportedly generating around US$11.4 billion in annual revenue at a 63% EBITDA margin. The launch business is capital-intensive, and the AI division (xAI) posted an operating loss of roughly US$6.36 billion in a recent quarter, contributing to an overall quarterly net loss of around US$4.28 billion.

9. What's the difference between SpaceX's Class A and Class B shares? The publicly traded SPCX shares are Class A, carrying one vote each. Elon Musk and other insiders hold Class B shares, which carry ten times the voting power — meaning Musk retains effective control of the company regardless of how SPCX trades.

10. How risky is SPCX compared to other large companies? Unusually risky for its size. Some estimates put SPCX at around 100 times revenue, well above typical valuations for large-cap technology companies, and analyst three-month price targets have ranged as widely as US$120 to US$200 — a spread of more than 65%. The stock also carries significant key-person risk tied to Elon Musk's other commitments.

11. Will SPCX be added to major share market indices? MSCI announced it would fast-track SPCX for inclusion in major large-cap indices starting 13 June 2026 (the day after listing), which is expected to create additional buying demand from index funds in the days following its debut.

Sources

Reuters, CNBC, NPR, CBS News and CNN Business — SpaceX IPO pricing, debut trading data and Elon Musk net worth coverage (June 2026)
The Motley Fool — SpaceX first-day trading close and analysis (12 June 2026)
TradingKey — SpaceX valuation and 90-day price scenario analysis (June 2026)
CommSec, Finder.com.au, The Motley Fool Australia and Stocks Down Under — Australian access to the SpaceX IPO and Australian Offer details (May–June 2026)
Interactive Brokers Australia, Superhero and Passive Investing Australia — Australian broker fee and FX comparisons (2026)
Trading Economics and MTFX — AUD/USD exchange rate data (June 2026)
Morningstar — SpaceX risk and governance analysis (June 2026)

This article is general information only and does not constitute financial, legal or tax advice. Always verify current rates and thresholds with the relevant government authority and seek advice from a qualified professional before making financial decisions.