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What Happens To Trading During a Market Crash?

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It’s hard to predict when a stock market crash will occur, so the best defense is to be prepared.

Today’s infographic comes to us from StocksToTrade.com, and it explains what happens when a large enough drop in the market triggers a “circuit breaker”, or a temporary halt in trading.

What Happens To Trading in a Market Crash?

These temporary halts in trading, or “circuit breakers”, are measures approved by the SEC to calm down markets in the event of extreme volatility. The rules apply to NYSE, Nasdaq, and OTC markets, and were put in place following the events of Black Monday in 1987.

Circuit Breaker Rules

Previously, the Dow Jones Industrial Average (DJIA) was the bellwether for such market interventions.

However, the most recent rules apply to the whole market when a precipitous drop in the S&P 500 occurs:

Before Feb 2013After Feb 2013
Index TrackedDJIAS&P 500
Level 1 Threshold-10%-7%
Level 2 Threshold-20%-13%
Level 3 Threshold-30%-20%

Upon reaching each of the two first thresholds, a 15-minute halt in trading is prompted. This is the case unless the drop happens in the last 35 minutes of trading.

Upon reaching the third threshold (-20% drop in S&P 500), the day’s trading is stopped altogether.

Can Circuit Breakers Stop a Market Crash?

In theory, the use of circuit breakers can help curb panic-selling, as well as limit opportunities for massive gains (or losses) within a short time frame. Further, by creating a window where trading is paused, circuit breakers help make time for market makers and institutional traders to make rational decisions.

Regulators and exchanges hope that all of this together will give investors a chance to calm down, preventing the next market crash.

But do circuit breakers actually work? While they make logical sense, recent evidence from China paints a murkier picture.

The Illusion of Safety

In Paul Kedrosky’s piece from The New Yorker, titled The Dubious Logic of Stock Market Circuit Breakers, he makes some interesting points on the series of market crashes in China from late-2015 to early-2016.

To understand why circuit breakers can make markets less ‘safe,’ imagine that you’re a Chinese trader on a day when markets are approaching a five-per-cent decline. What do you do?

– Paul Kedrosky, The New Yorker

Kedrosky continues by explaining that a market participant in that situation would try to get as many sell orders in as possible, before the circuit breaker is triggered.

Further, when the markets re-open, the same trader would again sell immediately to avoid the second breaker (which triggers an end in trading for the day). Each time the breakers get triggered, it creates a market memory of the events, and traders try to avoid future shutdowns by selling faster.

Preparation is Key

Whether they work or not, it is essential for investors to understand the rules behind circuit breakers, as well as how markets think and react after these pauses in action.

In the event of a market crash, this preparation could help to make a difference.

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Retail

The World’s Top Retail Companies, by Domestic Revenue

As price pressures and e-commerce reshape shopping behaviors, we show the top retail companies by domestic revenue around the world.

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This circle graphic shows the world's top retail companies by domestic revenue.

The World’s Top Retail Companies, by Domestic Revenue

This was originally posted on our Voronoi app. Download the app for free on iOS or Android and discover incredible data-driven charts from a variety of trusted sources.

The retail sector plays a vital role in powering economies, contributing $5.3 trillion annually to America’s GDP alone.

Moreover, the industry is America’s biggest private-sector employer, responsible for one of every four jobs, or 55 million employees. Yet in today’s challenging consumer environment, retailers are facing higher e-commerce penetration and inflationary pressures—across an industry notoriously known for razor-thin margins.

This graphic shows the world’s top retail companies by domestic revenue, based on data from the National Retail Federation.

Methodology

To be included in the rankings, companies must engage in a goods-for-consumer resale business accessible to the public and have direct selling operations in a minimum of three countries.

The rankings include both publicly and private companies, and are based on the most recent 52-week period analyzed by the National Retail Federation between January and March 2024. All revenue figures were converted to U.S. dollars.

Ranked: The Top 10 Global Retailers by Domestic Sales

Here are the leading retailers worldwide based on domestic sales as of 2023:

RankingRetailerDomestic Retail Revenue
(USD)
Share of Total Retail RevenueHeadquarters
1Walmart$532.3B85%🇺🇸 U.S.
2Amazon.com$250.0B70%🇺🇸 U.S.
3Costco$175.4B75%🇺🇸 U.S.
4The Home Depot$142.0B94%🇺🇸 U.S.
5Walgreens Boots Alliance$105.1B89%🇺🇸 U.S.
6Alibaba$91.5B97%🇨🇳 China
7Apple$70.9B87%🇺🇸 U.S.
8Aeon$64.3B93%🇯🇵 Japan
9Schwarz Group$56.5B32%🇩🇪 Germany
10Rewe$55.5B75%🇩🇪 Germany

Walmart towers ahead as the world’s largest retailer with $532 billion in domestic revenue—more than Amazon.com and Costco combined.

Known for its everyday low prices, Walmart achieves a competitive advantage through pricing goods approximately 25% cheaper than traditional retail competitors. Overall, groceries make up more than half of total sales. While its main customer base is often low and middle-income shoppers, the retail giant is seeing a surge in sales from higher-income customers as shoppers seek out lower grocery prices.

E-commerce giant, Amazon, is the second-biggest retailer globally, commanding nearly 40% of online retail sales in America. Since 2019, the number of Amazon employees has grown from 800,000 to over 1.5 million in 2023.

While the company has tried to introduce online grocery platforms to the market, it has largely fallen flat given its clunky system in a highly competitive market.

Like Amazon, China’s e-commerce juggernaut, Alibaba, stands as a leading global retailer. Overall, 97% of revenues were generated domestically through online marketplaces Taobao and Tmall. In recent years, the company has focused on international expansion, delivering products to 11 markets including America, in just five days.

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