How to Understand The Small-Stock Rally
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How to Understand The Small-Stock Rally

Small-caps are drubbing large ones this year. What does it mean for what’s ahead?

By Mark Hulbert
Wed, Mar 10, 2021 5:05amGrey Clock 4 min

Small stocks so far this year have beaten their large-capitalisation brethren by a wider margin than they have in more than two decades, raising questions about what is driving the outperformance and what it means for the overall market ahead.

The year-to-date return for small-caps through the end of February was a remarkable 25 percentage points greater than that of large-caps (as measured by the 20% of stocks with the smallest market caps vs. the comparative quintile of the largest). While it isn’t unexpected for small-cap portfolios to beat large-caps over time—a long-term tendency that Wall Street analysts refer to as the “size effect”—what is unusual is the magnitude of the outperformance. It has averaged just 0.9 percentage point over all two-month periods since 1926, according to data from Dartmouth professor Ken French.

You have to go back to January and February of 2000, at the top of the internet-stock bubble on Wall Street, to find a two-month stretch in which the small-caps beat the large-caps by more. Their margin of outperformance over those two months was 41 percentage points.

Any parallel to the top of the internet-stock bubble is ominous, to be sure. But there are several idiosyncrasies to small-caps’ recent performance that stand in the way of drawing any straightforward analogies to the frenzy in small stocks that heralded the 2000 tech-stock crash.

Indeed, according to several researchers, small-caps’ recent strength may actually be something else in disguise—that is, it may have to do with factors other than just size, such as the battle between growth and value stocks.

That doesn’t mean there is nothing to worry about in this bull market, where valuations are stretched thin for many stocks. But it does mean that investors who are focused solely on the small-cap/large-cap divergence could be missing the bigger picture.

Here’s why.

1. Value versus growth

One distinction that is crucial for understanding the relative strength of small-caps this year has to do with where small- and large-cap stocks lie on the growth-versus-value spectrum. Small-cap stocks currently are far closer to the value end of the spectrum than large-caps, meaning they are trading for lower prices relative to their net worth.

A stock’s place on this spectrum is defined by its ratio of price to per-share book value, with the highest ratios at the growth extreme and the lowest at the value extreme. Consider the Russell Microcap Index, which contains the smallest 1,000 stocks in the broad-market Russell 3000 index. Its average price-to-book ratio was 2.5 as of the end of February, according to Russell Indexes. That compares with a 4.2 ratio for the Russell 1000 Index (which contains the largest 1,000 stocks) and a 5.7 ratio for the Russell Top 50 Mega-Cap Index (which contains the largest 50 stocks).

These are significant differences, according to Kent Daniel, a finance professor at Columbia University and a former co-chief investment officer at Goldman Sachs. He says that, on average, small-cap growth stocks tend to underperform the market, while small-cap value stocks tend to outperform. Since 1926, he says, the smallest-cap stocks closest to the growth end of the spectrum have lost 3.3% annualized, while the smallest most value-oriented stocks have gained 13.3% annualized.

This pattern has been especially strong in recent months, making it difficult to determine what accounts for small-caps’ relative strength this year. But Prof. Daniel says there is the distinct possibility that it is really a “value effect masquerading as a size effect.” If so, a bet on small-cap relative strength continuing is really a bet that value will outperform growth.

That bet may pay off in coming months, he says, and value could continue to outperform growth for many years. But he also says that value stocks have lagged behind growth stocks for at least a decade now, and while there have been numerous predictions of a value resurgence over that time, it hasn’t happened—at least not yet.

2. Sector bets

The benchmark indexes for small-caps and large-caps have different sector weightings, which also makes it difficult to gauge whether the recent relative strength of small-caps is actually due to company size.

Consider the information-technology sector. The ETF benchmarked to the largest 50 stocks currently has a 38.6% weighting to this sector, more than three times the 12.7% weighting of the Russell Microcap Index.

Conversely, the microcap index has more than 10 times the weighting of the largest-50-stock ETF to the industrials sector (11.7% versus 0.8%) and more than double the allocation to the financials sector (17.6% to 7.1%).

These differences are a big part of small-caps’ year-to-date performance, since industrials and financials have each outperformed the information-technology sector. It was just the opposite for calendar 2020, and sure enough, the smallest stocks lagged behind the largest last year.

Until there are small-cap and large-cap benchmarks with the same sector weightings—Prof. Daniel says he is unaware of any currently—it will be difficult to determine what is driving small stocks’ relative strength. If it is being caused by differences in sector weightings, however, it is likely to persist only if the sectors in which the small-caps are overweight continue outperforming.

3. Is the small-cap effect real?

This discussion also points to a more fundamental question that many researchers have been asking in recent years: Does the small-cap effect even exist, in and of itself? That is, do smaller firms really have higher returns than larger firms, on average, over long periods?

Andrea Frazzini, a principal at AQR Capital Management and an adjunct professor of finance at New York University, has concluded that it exists only among a very narrow group of stocks. He says that some of the relative strength of small-caps in recent months traces to speculative fervour for stocks outside that narrow group, making it risky to bet that it will continue.

According to his research, small-caps are a good bet to outperform the large-caps only if you limit your focus to companies with high financial quality. By financial quality he means firms that are profitable, have robust profit growth and a stable earnings stream and a high dividend-payout policy, among other characteristics. Many of the small companies that have performed the best so far this year don’t qualify.

Companies that have been bid higher in recent weeks through social-media investor campaigns—such as GameStop and AMC Entertainment—are two obvious examples, but they are hardly alone in not qualifying for Prof. Frazzini’s high-quality category. Nearly half of the 2,000 companies in the Russell 2000 small-stock index, for example, lost money in 2020.

Prof. Frazzini’s research therefore suggests that, if you want to bet on a continuation of recent small-cap relative strength, you should focus on small stocks that score high on various measures of financial strength, safety and quality. And don’t sweat the comparisons to that internet-stock frenzy of 20 years ago.


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Milestone birthdays and anniversaries, weddings, and graduations are momentous life occasions that some like to mark with large and elaborate celebrations.

And the deep-pocketed set are still in catch-up mode after a party-throwing standstill during the pandemic that went on for many months during the height of the lockdowns and social distancing. Bashes since then have become ever more extravagant and experiential—mere get-togethers, they’re not.

Hosts are also seeking any excuse to throw an event and having parties with the same “wow” factor for far less significant reasons, or for micro-occasions as they’re called, and even “just because,” according to luxury event planners who work with this elite set.

Colin Cowie, a planner based in New York and Miami who regularly orchestrates multimillion-dollar gatherings and was behind Jennifer Lopez’s and Ben Affleck’s wedding, calls it the “event revolution.”

“Large-scale events have become the norm,” Cowie says. “The wealthy, who are used to celebrating their life moments in a big way couldn’t do anything during the pandemic and are now going all out for anything they host.”

His company, Colin Cowie Lifestyle, plans 30% more events today than pre-Covid and has a lineup booked for the next two years. An example includes an upcoming million-dollar dinner party in the Hamptons simply to socialise with friends. It’s an affair with free-flowing Dom Perignon, centre-cut filet mignons, and unlimited caviar.

Colin Cowie Lifestyle plans 30% more events today than pre-Covid
Calen Rose

Other high-end planners also attribute the rise of over-the-top celebrations to a “live life to the fullest” attitude that’s become prevalent in the last few years. But they say that these parties aren’t necessarily about spending more than before—rather, they’re increasingly creative, thoughtful, and, with respect to weddings, longer.

Lynn Easton, a Charleston-based planner, says that her typical wedding used to span two days and entailed a rehearsal dinner plus the wedding itself. “Now, it’s a five-day bonanza with events like a groomsman lunch,” Easton says.

Easton also plans glitzy milestone birthdays such as one for a 60th where the host flew 60 friends and family to a private island. Dinners were multi-hour affairs in various locations around the isle with the showpiece being a five-course meal where the food was presented on dishes that were hand-carved in ice.

Another planner, Victoria Dubin, based in New York and Miami, says that, in a new precedent, the weddings she’s tapped to design kick off with striking welcome meals. She recently planned an al fresco rehearsal dinner at the Brooklyn pizzeria Roberta’s that recreated a Tuscan garden. Elements included potted herbs, lemon trees, vintage olive oil cans, ceramic plates, and table cards presented with palm leaves in limoncello cans.

Another planner, Victoria Dubin, recently planned an al fresco rehearsal dinner at the Brooklyn pizzeria Roberta’s that recreated a Tuscan garden.
Aletiza Photo

Pashmina shawls hung from chairs to keep guests warm, and freshly baked pizzas and Aperol spritzes were in ready supply throughout the evening.

Stacy Teckin, the groom’s mother, hosted the party with her husband, Ian, and says she sought to pull off a dinner that made an impression on their guests. “The wedding was delayed because of Covid, and now that we had the chance to celebrate, we wanted to go all out,” Teckin says. “I’m not sure we would have done that before.”

In another example, acclaimed planner Norma Cohen threw a wild safari-themed bar mitzvah for a client.

A four-day wedding in Paris where the ceremony was in a historic chateau and the host paid for guests to stay at Hotel Crillon
Norma Cohen Productions

The memorable occasion transpired at Spring Studios in downtown Manhattan and saw 400 guests be transported to the African plains: Details included mammoth replicas of wildlife such as giraffes and elephants, servers in safari themed attire, and entertainment dressed like giraffes. The event was one of several over-the-top parties Cohen’s arranged recently.

A four-day wedding in Paris where the ceremony was in a historic chateau and the host paid for guests to stay at Hotel Crillon, one of the city’s most luxurious properties, also ranks high in Cohen’s memory.

Then there’s a destination party in London that Cohen planned for a client who was turning 40. It as a six-day affair with dinners at swanky spots such as Cipriani, the Arts Club, and Cecconi’s at Soho House. The finale was Lancaster House, a mansion in St. James, where guests were entertained by cabaret dancers from the famed Ibiza club Lio Ibiza and feasted on prime rib and lamb chops and imbibed on Krug champagne.

“People today don’t want to host events,” Cohen says. “They want experiences that take you away to a different place and make you forget that the real world exists.”