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Japan expands insider trading rules to crypto: Report

Meanwhile, Metaplanet’s Bitcoin reserves now exceed its market value.

Japan to ban cryptocurrency insider trading

Key Takeaways

Who will enforce the rules?

The SESC, overseen by the FSA, can investigate violations and impose surcharges.

Why is this important?

It strengthens oversight in a market that previously relied on self-regulation, boosting investor confidence.


Global sentiment around crypto regulation continues to diverge, with some nations embracing digital assets while others tighten their grip.

Japan is the latest to take a firmer stance, as its top financial regulator moves to outlaw insider trading in cryptocurrencies.

Japan’s crypto step back

According to Nikkei Asia, the Securities and Exchange Surveillance Commission (SESC) will soon gain the authority to probe suspected cases and impose surcharges based on illicit gains.

The move marks a policy shift. Japan’s insider trading framework, once limited to securities, now includes digital assets.

According to reports, the Financial Services Agency (FSA) plans to finalize the framework by year-end and amend the Financial Instruments and Exchange Act (FIEA) next year.

The revised FIEA empowers the SESC to investigate and penalize illicit trades. It bans trading on undisclosed information and aligns crypto rules with securities law.

However, defining what constitutes “insider information” in crypto remains complex, especially for tokens without clear issuers.

Yet, Japan’s move follows a global trend toward tightening oversight, with the EU and South Korea already establishing frameworks to tackle market manipulation and insider trading.

Metaplanet’s market value drops

This coincided with Metaplanet Inc., seeing its market value drop below its Bitcoin [BTC] reserves. 

According to Bloomberg, the Tokyo-listed company, which began buying Bitcoin in April 2024, has lost over 70% of its share value since June, bringing its market-value-to-Bitcoin ratio down to 0.99.

Holding over 30,000 BTC worth $3.4 billion, the firm recently raised $1.4 billion to expand its holdings as broader market volatility deepened after Trump’s tariff remarks on China.

Japan’s crypto adoption

Yet despite such downturns, Japan’s crypto adoption is accelerating even amid tighter oversight.

Chainalysis data showed a 120% year-over-year surge in on-chain value received, outpacing peers like Indonesia, South Korea, and India.

Policy reforms, spanning crypto taxation, yen-backed stablecoin licensing, and investment recognition, are fueling this growth.

Disclaimer: AMBCrypto's content is meant to be informational in nature and should not be interpreted as investment advice. Trading, buying or selling cryptocurrencies should be considered a high-risk investment and every reader is advised to do their own research before making any decisions.

Ishika Kumari

Journalist

Ishika Kumari is a Crypto Analyst at AMBCrypto, specializing in regulatory developments, market dynamics, and blockchain’s real-world impact. She breaks down complex protocols and legislation into practical, easy-to-understand insights.

AMBCrypto was founded in 2018 with a mission to simplify and bring the latest blockchain and cryptocurrency news to our readers. We have quickly grown into the digital news source for an emerging generation of cryptocurrency enthusiasts, reaching more than a million readers on a monthly basis, across the globe.