‘Circuit breakers’ are being triggered throughout Asia — this is how they differ throughout main markets

'Circuit breakers' are being triggered across Asia — here's how they differ across major markets

The Shanghai inventory alternate in China.

China Tourism Press | The Picture Financial institution | Getty Pictures

From Wall Avenue to Asia, the latest sell-off in international inventory markets has triggered buying and selling halts in a number of inventory exchanges — an incidence that might develop into more and more frequent as buyers worry the impression of the coronavirus outbreak.

Within the U.S., buying and selling was briefly stopped twice this week after the S&P 500 Index fell 7% — triggering the primary threshold for a “circuit breaker,” aimed toward stopping markets from wild swings.

In Asia, circuit breakers had been additionally triggered in lots of exchanges together with India, Japan, South Korea, Indonesia, Thailand and the Philippines this week.

Circuit breakers are measures applied by exchanges after they think about value actions to be overly unstable. They’ll take the type of a buying and selling suspension or limiting shopping for and promoting of securities inside a particular value vary. 

Jurisdictions and inventory exchanges have their very own guidelines for what circuit breakers entail, when do they kick in, and for the way lengthy they’re in place.

Listed here are what circuit breakers at a few of Asia’s important inventory exchanges are like.

Better China

Each the Shanghai and Shenzhen inventory exchanges will droop buying and selling for 15 minutes when the CSI 300 Index rises or falls by 5% or extra from its earlier shut for the primary time.

If the index rises or falls by 7% or extra from the earlier shut, buying and selling shall be halted for the day.

Merchandise which are topic to circuit breakers embody shares, mutual funds and sure bonds.

Over on the Hong Kong inventory alternate, the circuit breaker presently applies solely to the constituent shares of the Dangle Seng Index and the Dangle Seng China Enterprise Index.

In Hong Kong, the circuit breaker is predicated on a “reference value” — or the final traded value 5 minutes in the past. A cooling-off interval is triggered if the worth of a inventory goes above or beneath 10% from the reference value. Throughout the cooling-off interval, which lasts for five minutes, buying and selling is allowed solely inside a set value band of 10% above or beneath the reference value.

Ranging from Could, the Hong Kong inventory alternate will develop its circuit breaker to cowl one other 500 or so shares, and the reference value that may set off a cooling interval will even be tiered in keeping with market capitalization.


The Japan Alternate Group, the corporate that manages the nation’s important exchanges, apply buying and selling halts to all futures and choices contracts, in addition to by-product merchandise regarding futures and choices.

Every product has its personal “value restrict vary” that may journey the circuit breakers, a few of which shall be revised each few months utilizing a formulation that takes into consideration previous value developments.

Buying and selling shall be suspended for 10 minutes when that restrict vary is breached.

South Korea

In South Korean markets, buying and selling of all listed securities (excluding debt securities) shall be suspended for 20 minutes if the respective benchmark index — Kospi or Kosdaq — falls by greater than 10% from the day past’s closing value.

The triggering of circuit breakers is proscribed to as soon as per day.


Circuit breakers in India are triggered when the Nifty 50 or Sensex breaches a pre-determined restrict. That restrict is 10%, 15% and 20% above or beneath the indexes’ respective earlier day shut.

Relying on which restrict is breached, a market-wide buying and selling halt will final from 15 minutes to 1 hour 45 minutes, and even shut for the day.


The Singapore Alternate applies circuit breakers to element shares of the Straits Instances Index, MSCI Singapore Index and different merchandise — together with shares and exchange-traded fund — that meet sure standards.

The circuit breaker in Singapore is triggered when a potential buying and selling value falls outdoors the “value band,” outlined as 10% above or beneath its worth inside a 5-minute interval. That worth is named the “reference value.” 

When the buying and selling curbs are in place, a 5-minute cooling-off interval will happen, the place buying and selling can solely be executed inside 10% above or beneath that reference value.   


Indonesia revised guidelines on its circuit breaker this week. Beneath the brand new guidelines, buying and selling will halt for 30 minutes if the primary inventory index — the Jakarta Composite Index — falls by 5% or extra from the earlier shut.

Earlier than the newest change, the index needed to drop by 10% or extra earlier than the circuit breaker kicks in.


A 30-minute buying and selling halt takes place on all listed securities when the benchmark SET Index falls by 10% from the day past’s shut. If the SET Index falls by 20% from the earlier shut, buying and selling shall be halted for an hour.

Supply hyperlink

This site uses Akismet to reduce spam. Learn how your comment data is processed.