On a rolling three-year basis, small-cap stocks have been like the last kid picked for the team—waiting on the sideline while their larger peers enjoy all the playing time. Through mid-August, the S&P 600 Index (small companies) trailed the S&P 500 by more than forty percentage points - a wide gap we haven't seen in decades. Rising interest rates, stubborn inflation, and the gravitational pull of a handful of giant tech firms sucked the oxygen out of the room, leaving the little guys gasping for air.
Even the higher-quality companies—those with steady earnings and respectable balance sheets—were not spared. Investors sought safety in size, and size delivered. Giant companies enjoyed scale, generous financing, and the glowing halo of being "indispensable." Small companies, dependent on banks and expensive credit, suddenly felt fragile.
Like the seasons, markets change their mind. Small stocks have lagged before, sometimes for years, and then the wheel turned. Market leadership runs in cycles, and history demonstrates that once conditions shift, the most neglected asset classes often have the most to give.
Today, the case for small caps rests not on nostalgia but on arithmetic. Large caps now trade around 22 times forward earnings, while small caps sit closer to 15—the widest spread in a generation. In plain terms, you pay a premium for a dollar of profits from a giant company than you do from a smaller one. In times of stress, that discount may be justified, but if growth broadens, or if the Federal Reserve relaxes its grip (as Chairman Powell alluded to Friday), the pendulum might swing.
Yet there is a wrinkle in the story. Companies are staying private longer. Where once a promising enterprise might have gone public with $200 million in revenue, many now wait until they are ten times that size. Today, venture capital and private equity markets capture a considerable share of the early value creation that public small caps once enjoyed. By the time these firms reach the stock exchange, they are older, larger, and the most explosive phase of growth is often already behind them. That does not diminish the role of small caps, but it does change the texture of the opportunity. Public investors now catch the middle chapters rather than the prologue.
Valuation, of course, is not a timing tool. Cheap stocks can stay cheap. Still, it sets the stage. In past cycles, small caps outperformed after the first Fed rate cuts, when credit thawed and demand filtered down from the titans. Their sensitivity to economic upturns—so punishing in downturns—suddenly worked in their favor.
Quality matters here. Not all small caps are created equal—the S&P 600, unlike broader small-cap benchmarks, screens for profitability. At last count, only about a fifth of its constituents were unprofitable, compared with nearly half in the widely recognized Russell 2000. That tilt toward earnings is worth remembering. In the smaller reaches of the market, it's easy to confuse speculation with investment. Better to favor firms that generate cash and have the discipline to endure lean years.
For investors, the message is not to abandon large caps—they remain the anchor of most portfolios—but to resist the temptation of a one-sided bet. Extremes, whether of optimism or despair, are usually best tempered. Maintaining or adding measured exposure to small caps, particularly the sturdier variety, is less a wager than an act of balance.
Small companies may still be waiting on the sidelines. But eventually, they'll check in, and when the rotation comes, it tends to favor those already on the field. And since much of the early value creation now occurs behind the walls of private markets, a balanced portfolio today is not just large versus small, but public paired thoughtfully with private. The modern game has more than one field of play.