Latest / Stock Picking with Fexingo: Individual Equities, Research, and Building a Concentrated Portfolio / How SpaceX Joining the Nasdaq-100 Reshapes Index Investing
Transcript
- Lucas: So SpaceX is joining the Nasdaq-100, fast-tracked, and this is going to trigger a wave of forced buying from ETFs that track the index. It's a fascinating moment for anyone who thinks about how index construction actually shapes stock prices. Luna: And it's not just SpaceX, right? Any stock that gets added to a major index sees this effect. But SpaceX is unusual because it's not even a public company yet — it's being added ahead of an IPO. Lucas: Exactly. The Nasdaq-100 committee has discretion to add companies that are "sufficiently large and liquid" even before they list. SpaceX, based on private-market valuations north of $200 billion, clearly qualifies. So the announcement came Friday, and by the time SpaceX actually IPOs — which could be later this year — index funds will have to buy. Luna: How much buying are we talking? The headline said 'huge ETF demand'. Lucas: Rough estimate: the Nasdaq-100 has about $400 billion in passive money tracking it across ETFs and institutional mandates. SpaceX's weight in the index will likely be around one and a half to two percent, given its size. That's six to eight billion dollars of forced buying, and that's just the initial wave. Rebalance day is going to be dramatic. Luna: So if you're an active manager, you can front-run that. Buy before the ETFs have to. Lucas: That's the trade. But it's also a reminder of how distorted passive flows can make prices. When Tesla was added to the S&P 500 in 2020, there was a massive scramble, and the stock popped. But after the forced buying subsided, the stock eventually settled. The question is whether SpaceX will be overvalued on day one because of this mechanical demand. Luna: It's a bit of a paradox. Index investing is supposed to be efficient, low-cost, market-weighted. But the act of including a stock creates artificial demand that has nothing to do with fundamentals. Lucas: Right. And that's where active stock pickers can find an edge. You can sell into the forced buying if you think the valuation is stretched, or you can buy ahead if you believe in the long-term story. The key is understanding the plumbing. Luna: Speaking of plumbing — the S&P 500 closed Friday at 7,354. That's another record. The Nasdaq-100 is also at highs. So we're in a market where the megacaps are driving everything, and now we're adding another massive name to the index. Lucas: And the Russell 2000 is barely up, up just 0.1 percent over the past five days. Small caps are not participating. So the concentration risk in passive portfolios is growing. If you're in a total market ETF, you're heavily exposed to the top ten stocks. Adding SpaceX just amplifies that. Luna: Let's talk about the mechanics for a second. When an index fund has to buy SpaceX, where does the money come from? It's not new money flowing in — it's rebalancing. Lucas: Correct. The index fund sells a little bit of every other stock in the index to make room. So every other Nasdaq-100 constituent gets a tiny sell order. That's why inclusion day can cause a slight drag on the rest of the index. The effect is small for each stock, but cumulatively, it's real. Luna: So if you're holding Apple, Microsoft, NVIDIA — they'll see a little selling pressure. Not enough to matter for most investors, but enough to notice if you're watching. Lucas: And that's where the stock picker's opportunity lies. If you think Apple is undervalued and you know it's going to be sold mechanically, you might buy the dip. Or if you think SpaceX is overhyped, you might short it after the pop. The passive flows create predictable patterns. Luna: Speaking of predictable — the Minneapolis Fed President Kashkari said he expects a rate hike this year. That's a hawkish statement. How does that interact with this SpaceX story? Lucas: It's a reminder that the macro environment is tightening. Higher rates compress valuations, especially for high-growth companies like SpaceX that have no earnings. So the forced buying might be happening just as the fundamental case for holding SpaceX gets harder. That's a recipe for volatility. Luna: You know, it's interesting because SpaceX is a very different kind of company from the typical Nasdaq-100 member. It's capital-intensive, space exploration, Starlink — not a software platform with high margins. Lucas: Exactly. And the index doesn't care about that. It just cares about market cap. So you get a company with high capital expenditure, cyclical revenue tied to launch contracts, and massive uncertainty about Starlink's profitability, all weighted similarly to a steady grower like Microsoft. That's a real risk for passive holders. Luna: Which brings us back to active management. You can choose not to own SpaceX if you don't like the risk. Or you can own it in a size that matches your conviction, not its market cap. Lucas: That's the whole thesis of concentrated, high-conviction portfolios. You don't have to own everything. You can pick the ten or twenty stocks you understand best and weight them accordingly. Index inclusion events like this just highlight the inefficiencies. Luna: Quick honest thing — a handful of listeners chip in monthly through buy me a coffee dot com slash fexingo, and that's literally what funds making this many episodes. We don't run ads, we don't have sponsors, it's just listener supported. If our conversations have helped you think about a decision differently, that's the link. Lucas: Yeah, it's a small group that keeps it going, and we're grateful. It lets us talk about whatever we find interesting without any outside pressure. So if that resonates, you know where to find it. Luna: Alright, back to SpaceX. One thing I want to dig into — the precedent. Tesla was added to the S&P 500 in 2020, and it caused a massive rally. But then the stock corrected. Do you think SpaceX will follow a similar pattern? Lucas: Probably, but with caveats. Tesla's inclusion was at a time of extreme retail enthusiasm and low interest rates. SpaceX is joining in a higher-rate environment, and the private-market valuation is already sky-high. So the forced buying might be more muted because the stock is already priced for perfection. Luna: Also, SpaceX's IPO isn't even priced yet. The index inclusion is based on private market value. But the actual float might be much smaller than what the index assumes. Lucas: Great point. The Nasdaq-100 weights are based on market cap, but if only a small slice of shares are publicly traded, the index fund will have to buy a huge percentage of the float. That could create extreme price impact on day one. It's a liquidity mismatch. Luna: So for active investors, the play might be to wait for the inclusion day chaos and then decide. Maybe sell the pop, or buy if the forced buying creates a temporary overshoot. Lucas: Exactly. And this is why understanding index mechanics is a genuine edge. Most retail investors just buy the ETF and don't think about it. But if you know when rebalancing happens, you can position ahead of it. Luna: Let's zoom out. The Nasdaq-100 is now 101 stocks with SpaceX. It's become a bit of a club. There's talk of adding more private companies pre ipo. Stripe, maybe? Lucas: Could happen. The committee has been proactive. They added Palantir, Snowflake, and others quickly after their IPOs. If Stripe goes public, it's almost certainly getting in. And each inclusion creates the same forced buying dynamic. Luna: So the index is becoming a self-fulfilling prophecy. The stocks that get included get bought, which makes them bigger, which makes them more likely to stay in the index. Lucas: That's the circularity critique of passive investing. The top holdings keep growing because they're in the index, not necessarily because they're the best investments. And active managers who avoid those stocks can look foolish in the short term, even if they're right long term. Luna: So what's the takeaway for our listeners? One concrete thing they can do. Lucas: If you own a Nasdaq-100 ETF, check the turnover. When SpaceX is added, you'll see a spike in trading volume and potentially a small drag. But more importantly, think about whether you want to own SpaceX at all. If you don't, consider an active fund or a custom portfolio that excludes it. Luna: And if you're a stock picker, mark your calendar for the inclusion date. That's when the inefficiency will be most pronounced. Lucas: Yeah. The exact date isn't set yet, but it'll be within the next quarter. We'll keep an eye on it and revisit once we know more. Luna: Good. That's our show for today. Thanks for listening. Lucas: See you next time.