The 6 Smallest Companies in the S&P 500
The S&P 500 is synonymous with America’s largest companies. But investors’ attention almost always turns to its peak, while the opposite end stays in the shadows. Yet that’s where you’ll find stories of deep declines, cyclical turnarounds, and potential opportunities. Who are the smallest members of the world’s most-watched index today, do they have higher potential than their more valuable peers, and how did they actually end up at the bottom.
Key points
The ten largest companies make up around 38% of the S&P 500’s weight, while its smallest members with market caps of about $7 to $9 billion are roughly five hundred times smaller than the top names.
To enter the index today, a market cap of roughly $18 billion is required, but existing members can fall much lower. The bottom of the index is therefore a parade of fallen angels and companies at a cyclical trough.
Not one of the six smallest companies is profiting from the AI boom driving the index higher this year. All are grappling with either a cyclical downturn or market doubts about their long-term growth.
While the average P/E of the entire index sits around 37, most of the bottom-dwelling companies trade at a fraction of that value, and several offer dividend yields well above the market average.
A low market cap within the index is in itself neither a buy signal nor a warning. The key is to distinguish whether the market is pricing in a temporary problem or a permanent business decline.
The S&P 500 is talked about today mostly in relation to its record concentration. The ten biggest companies make up about 38% of the index’s entire weight, and Nvidia $NVDA and Apple $AAPL alone account for roughly a seventh of its value. At the opposite end of the ranking, a completely different story is playing out. The smallest members of the index have market caps around $7 to $9 billion, meaning they’re about five hundred times smaller than the index’s largest companies. Their weight in the index is so negligible that passive investors barely notice them.
Still, it’s worth looking at the bottom of the index. To get into the S&P 500 at all, a company currently must meet a minimum $18 billion market cap at entry. But once in the index, its value can fall much lower without being automatically removed. The smallest members are therefore almost always companies whose shares have suffered deep declines. In other words, the index’s lower tier acts as a display of fallen angels, cyclical stories at rock bottom, and companies for which the market has reassessed its original expectations.
That’s exactly what makes it an interesting hunting ground for those seeking asymmetric investments. History shows that some bottom-of-the-index companies recover over time and deliver above-average returns, while others actually fall out of the index and their shares keep falling. Distinguishing between those two groups is the essence of the whole analysis. So let’s take a look at the six currently smallest index members and the reasons they ended up at the bottom.
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