NASA Bets on Two Rockets to One Destination
Published on 20 September 2026
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There are few things in finance quite as mechanical, and frankly, as lucrative, as a company getting the nod to join the S&P 500. It’s like being invited into the most exclusive club in town, where the drinks are paid for by a £30 trillion tab. When the bouncers at S&P Dow Jones Indices recently waved through AppLovin and Robinhood, we saw the usual scramble. A torrent of money from index funds, all legally obliged to buy shares, flooded in. It’s a predictable, powerful force, and for the savvy investor, it presents a rather interesting game of ‘guess who’s next’.
Let’s be clear about what happens here. This isn’t about sentiment or a sudden discovery of a company’s hidden genius. It’s pure plumbing. The moment a company is added to the S&P 500, every single fund and ETF that tracks the index has to buy its shares. They don’t have a choice. Their mandate is to mirror the index, so if a new name appears, they must acquire it to maintain their allocation. This creates billions of pounds in forced, concentrated buying pressure, often sending the share price upwards in a very short space of time. To me, it’s one of the last remaining inefficiencies in a market that’s otherwise obsessed with pricing everything in instantly.
So, how does a company get its name on this hallowed list? Well, the committee isn’t throwing darts at a board. There’s a checklist, and it’s surprisingly straightforward. First, you need size. A market capitalisation north of £12 billion is the general starting point. Then comes profitability. The company must have a history of making actual money, a quaint and often overlooked detail in today’s market. It also needs to be American, have plenty of shares available for public trading, and, crucially, its inclusion should help balance the index’s overall sector representation. It’s a formula, and like any formula, you can work backwards to find the likely answers.
When you start applying these filters, a few familiar names pop up. Take Lululemon, the purveyor of eye-wateringly expensive yoga trousers. It’s a brand powerhouse with consistent profits and a market value that easily clears the bar. Then there’s Deckers Outdoor, the parent company of UGG and Hoka. It has masterfully navigated the fickle world of footwear, proving it’s far more than a one-trick pony. And who could ignore Crocs? Yes, the plastic clogs. Once a punchline, now a phenomenally profitable business that meets the technical criteria with room to spare. These companies are prime examples of the businesses you might find in a collection like the S&P 500 Contenders | Index Addition Candidates basket. They are established, profitable, and just waiting for the call.
Of course, it’s not a guaranteed ticket to riches. Investing based on a potential index inclusion is a speculative game. The committee can be unpredictable, and a company can meet all the criteria on paper yet still be left waiting outside in the cold for years. Market downturns can delay decisions, and sometimes a company’s sector is already a bit too crowded inside the club. Furthermore, the ‘index effect’ itself isn’t a law of physics. As more money flows into passive funds, its impact could diminish over time. The real prize, I think, is identifying solid businesses that are worthy of investment on their own merits. The potential S&P 500 inclusion is simply the cherry on top, a powerful catalyst that could unlock value sooner rather than later.
View the full Basket:S&P 500 Contenders | Index Addition Candidates
View the full Basket:S&P 500 Contenders | Index Addition Candidates
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Published on 20 September 2026
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Published on 20 September 2026
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