Latest / Stock Picking with Fexingo: Individual Equities, Research, and Building a Concentrated Portfolio / How SpaceX IPO Is Reshaping Index Fund Investing
Transcript
- Lucas: So the SpaceX IPO is officially the biggest in history — seventy-five billion dollars raised, listing on the Nasdaq. But there's something beneath the surface that's going to affect every single person who owns an index fund, not just the people who got an allocation. Luna: I saw that the S&P 500 already made a 'big call' on SpaceX stock, according to one headline. What does that mean exactly? Lucas: Right — the S&P 500 committee actually announced ahead of the IPO that SpaceX would be added to the index on a fast-track basis, as soon as it meets the eligibility criteria. That's unusual. Normally a company has to have a public float of at least 50% of its shares and trade for a few months before being considered. Luna: But SpaceX's float is reportedly around 10 to 15% — Elon Musk holds the vast majority. How does that qualify? Lucas: That's the tension. The index rules have been bent before for big IPOs — Facebook in 2012 and Alibaba in 2014 got expedited treatment. But SpaceX is an order of magnitude larger. Its market cap at the IPO price is expected to be over two hundred and fifty billion dollars — that's bigger than companies like Coca-Cola or Bank of America. Luna: So the S&P 500 is essentially pre-committing to include a stock that hasn't traded a single public share yet. That's a pretty strong signal. Lucas: It is. And it matters because index funds that track the S&P 500 — and there are trillions of dollars in those — will have to buy SpaceX shares as soon as it's included. That forced buying can create a price impact, which active managers can exploit. Luna: You're saying the passive flows themselves will push the stock higher, at least initially. That's a built-in advantage for early IPO investors. Lucas: Exactly. If you got an allocation at the IPO price, you're essentially selling into a wave of index-fund demand. It's a free lunch for those who can access the IPO. But the more interesting question is what this does to index concentration. Luna: Because SpaceX will immediately be one of the top ten holdings in the S&P 500, right? Lucas: Potentially top five. The current top five — Apple, Microsoft, NVIDIA, Amazon, Alphabet — are about 25% of the index. Add SpaceX, and you've got a six-stock concentration of maybe 30%. That's a lot of eggs in a very tech-heavy basket. And we've seen the Nasdaq drop about 0.2% in the last five days while the Dow is up 0.8% and the Russell 2000 small-cap index is up over 3%. Luna: So there's already a rotation happening away from big tech into small caps, and then SpaceX comes in and reinforces the mega-cap tech weighting. Lucas: Right. It's a countervailing force. The index committee is effectively saying 'we think this stock is big enough to matter right now,' which might accelerate the very concentration that investors are starting to worry about. Luna: And for the active managers you mentioned — how do they play this? Are they buying or selling ahead of inclusion? Lucas: Some active funds that are benchmarked to the S&P 500 but have some wiggle room might buy before inclusion to get ahead of the index funds. But others, especially value-oriented managers, might avoid it entirely because SpaceX has no earnings — it's still barely profitable on a GAAP basis, and at a price to sales ratio that's astronomical. Luna: It's a story stock, not a value stock. That's fine for growth investors, but it's not for everyone. Lucas: And that's actually the broader lesson here. The reason we're talking about this on a stock-picking show is that the line between passive and active investing is blurring. The decision to include a stock in an index is itself an active judgment call. It's not a neutral, mechanical process. Luna: The S&P 500 committee has always had discretion, but this case makes it really visible. They're basically saying 'we think this company is too important to ignore,' even though it hasn't met the standard criteria. Lucas: If these conversations have ever made you think about investing in a new way — maybe questioning whether a total-market index fund is truly diversified, or whether you should hold a value tilt alongside — that's exactly the kind of thing we try to explore here. And we do it without ads, because we think the topic itself is enough. If that independent perspective is valuable to you, you can support it at buy me a coffee dot com slash fexingo. Luna: Yeah, it's a way to keep these conversations free of sponsors and focused on what matters. No pressure, just if it's useful. Lucas: So back to SpaceX — one more implication I want to flag. The IPO's retail allocation was reportedly cut to the low 20% range, meaning institutions got the lion's share. That's typical for big IPOs, but it means the average investor can't easily get the IPO price benefit. Luna: But if they own an S&P 500 index fund, they'll still get exposure — just at a later, potentially higher price. Lucas: Exactly. So the index fund investor is buying after the initial pop, which is partly caused by the index fund buying itself. It's a bit circular. And that's why some people are arguing that the index inclusion process should be more transparent, maybe even based on a fixed rule rather than committee discretion. Luna: What would a fixed rule look like? Market cap alone? Free float? Trading volume? Lucas: A combination. But the problem is that any rule can be gamed. If you set a market cap threshold, companies could do stock splits or buybacks to cross it. The committee approach has the benefit of judgment, but it also opens the door to perceived favoritism. Luna: And with SpaceX, the perception is that Elon Musk's star power and the company's strategic importance are influencing the decision. Lucas: Look at the S&P 500 level right now — 7,431. That's up about 0.3% in five days. The index is basically flat as this news digests. But the Russell 2000 is up 3.1% in the same period, and value ETFs like IWD and VTV are up 2% and 2.1% respectively. That tells me that while everyone's focused on the SpaceX mega-cap story, the real action is in small caps and value. Luna: So the narrative is about one giant company, but the market is actually rotating away from the giants. That's a fascinating disconnect. Lucas: It is. And it's why we spend time on this show looking at individual stocks and sectors rather than just the headline index. The SpaceX IPO is a huge event, but for a diversified investor, the more important trend might be the quiet outperformance of things like Bank of America, up 4.5% in five days, or even Pfizer, up 2.3%. Luna: So the takeaway isn't 'should I buy SpaceX?' It's 'how does this change the structure of the market I'm invested in?' Lucas: That's the question. And if you're an active stock picker, the answer might be to look for opportunities in the parts of the market that are being ignored — small caps, value, maybe even energy despite the recent pullback in Exxon and Chevron. Luna: Because the index funds are all going to be buying SpaceX, and that money has to come from somewhere. It might mean selling other holdings to make room. Lucas: That's exactly the mechanism. Index funds don't create new money; they rebalance. To buy SpaceX, they'll have to sell some of their other positions. That could create downward pressure on other stocks, especially if the index committee fast-tracks inclusion before the stock has a chance to find a natural market price. Luna: So there's a potential for a 'buy the rumor, sell the news' pattern around the inclusion date. Lucas: I think we'll see that. The initial allocation buyers get a pop from index demand, then the stock settles as the forced buying subsides. For long-term holders, the question is whether SpaceX can live up to the growth narrative over the next decade. Luna: And that's where stock picking comes back in. You have to look at the business, not just the index mechanics. Lucas: Right. And that's a good place to leave it. The SpaceX IPO is a structural event for the market, but the fundamentals of the company — revenue growth, profitability path, competitive moat in launch and satellite internet — those are the things that will determine its long-term value, not the first few days of trading. Luna: And for everyone else, the rotation into small caps and value might be the quieter, more important story of June 2026. Lucas: Yeah. We'll keep watching both.