Japan: Nikkei 225, Topix Futures suspended due to circuit breaker - What it means
Japanese stock futures trading was suspended Monday morning local time due to a circuit breaker
Japanese stock futures trading was briefly suspended Monday morning local time due to a circuit breaker. This came after the Dow Jones and S&P 500 Futures fell 4% each amid fears of a ‘Black Monday’ on April 7. In early trade in Tokyo, the Nikkei 225 was off 7.35%, adding to a 2.75% drop on Friday, while in Seoul the Kospi was off 4.8%.

The global stock market wipeout follows US President Donald Trump's ‘Liberation Day’ tariffs announcement on Wednesday. The Dow has posted back-to-back losses of more than 1,500 points for the first time ever. It fell by 2,231 points on Friday.
Read More: Dow Jones Futures tumbles 1500 points, Russell 2000 down 7% amid Black Monday fears
China’s CSI300 blue-chip index fell 4.5%. Hong Kong’s Hang Seng index was down 8% in early trade.
What does a circuit breaker mean?
The suspension of Japanese stock futures trading due to a circuit breaker indicates that the market has experienced a significant price movement—either a sharp decline or a rapid rise—triggering an automatic mechanism designed to halt trading temporarily.
This is a regulatory measure used by stock exchanges, such as the Japan Exchange Group (JPX), which oversees the Tokyo Stock Exchange, Osaka Exchange, and Tokyo Commodity Exchange, to prevent panic selling or buying and stabilize the market during extreme volatility.
Read More: Donald Trump says 'time to get rich' as Dow Jones crash sparks recession fears
The suspension allows investors and traders a ‘cooling-off’ period to reassess their positions, absorb new information, and then make a decision to avoid a potential free fall or bubble.
Black Monday coming?
Market analyst Jim Cramer, on his CNBC show, warned investors about a Black Monday-like situation on April 7. The Harvard graduate and TheStreet founder said that markets could experience a carnage like the one in 1987 when Dow Jones crashed 22.6% in a single trading session.
“If the president doesn’t try to reach out and reward these countries and companies that play by the rules, then the 1987 scenario… the one where we went down three days and then down 22% on Monday, has the most cogency,” he said. “We will not have to wait too long to know. We will know it by Monday.”
ABOUT THE AUTHORYash Nitish BajajYash Bajaj is a Chief Content Producer with a strong foundation in US coverage, digital strategy, and audience-focused storytelling. As part of the US Desk at Hindustan Times, he covers a wide range of topics - from American politics to sports (NFL, NBA, derbies, MLB and more). Before joining Hindustan Times, Yash served as Deputy News Editor at Times Now, where he oversaw international coverage and led a team of six. In this role, he significantly expanded global traffic through strategic planning, SEO-driven content execution, and meticulous trend tracking across platforms. He is experienced in managing high-pressure breaking-news shifts, coordinating live coverage, and building newsroom systems that improve speed, accuracy, and reach. Prior to Times Now, Yash held a position at Opoyi, where he headed the Sports and US news team. He developed broad editorial strategies, guided reporters across multiple beats, and played a key role in recruiting and training new talent. His responsibilities also extended to social media management and experimenting with innovative content formats. A passionate NFL fan, Yash is a die-hard supporter of the Cincinnati Bengals and has followed Joe Burrow closely since his college days at LSU. Whether breaking down top players' latest performance, analyzing team performances, or tracking roster moves, he brings the same dedication and sharp storytelling to his sports coverage as he does to American politics and breaking news. When he’s not writing, Yash can often be found watching games or debating the latest NFL storylines with fellow fans. Yash holds a Bachelor of Mass Media (Journalism) from HR College, Mumbai University. His interests extend well beyond the newsroom: he is an enthusiastic explorer of AI tools, a movie buff with an ever-growing watchlist, and someone who enjoys unraveling conspiracy theories for fun.Read More

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