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KDDI vs Rakuten Group: why the prices moved differently

Weekly · monthly · quarterly news summaries, side by side in time

KDDI Corporation (9433.JP)

Q3 2026
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KDDI Expands Connected-Car and Stablecoin Pilots, but Data Leak and Quake Hit

  • Massive email/password leak confirmed KDDI confirmed 12.23 million email addresses and 7.62 million passwords leaked from its email system. This raises the risk of customer loss, fines, and repair costs, weighing on the share price.

    A large security breach directly threatens KDDI's reputation and costs, a key negative force on the stock.

  • BMW connected-car deal with Verizon KDDI's platform will manage 5G/LTE connectivity for new BMW and MINI cars in the U.S. via Verizon. This adds a major automaker client, supporting future service revenue and showing KDDI's global reach.

    A new international contract expands KDDI's high-value connected-car business, a positive growth driver.

  • Stablecoin payment pilot at Lawson KDDI and Lawson will test Japan's first in-store stablecoin payment using JPYC at a KDDI-operated store. Success could open new payment revenue and position KDDI in digital finance.

    This pilot shows KDDI testing a new technology that could become a future revenue stream, a positive innovation signal.

  • Kumamoto earthquake disrupts mobile service Power outages and transmission failures from the Kumamoto earthquake left KDDI and rivals' mobile services down in parts of the prefecture, with no restoration timeline. This adds repair costs and short-term customer inconvenience.

    A natural disaster causing network outages directly hurts KDDI's operations and may require costly repairs, a negative event.

July 2026
▲2▼2

KDDI Expands Connected-Car and Stablecoin Pilots, but Data Leak and Quake Hit

  • Massive email/password leak confirmed KDDI confirmed 12.23 million email addresses and 7.62 million passwords leaked from its email system. This raises the risk of customer loss, fines, and repair costs, weighing on the share price.

    A large security breach directly threatens KDDI's reputation and costs, a key negative force on the stock.

  • BMW connected-car deal with Verizon KDDI's platform will manage 5G/LTE connectivity for new BMW and MINI cars in the U.S. via Verizon. This adds a major automaker client, supporting future service revenue and showing KDDI's global reach.

    A new international contract expands KDDI's high-value connected-car business, a positive growth driver.

  • Stablecoin payment pilot at Lawson KDDI and Lawson will test Japan's first in-store stablecoin payment using JPYC at a KDDI-operated store. Success could open new payment revenue and position KDDI in digital finance.

    This pilot shows KDDI testing a new technology that could become a future revenue stream, a positive innovation signal.

  • Kumamoto earthquake disrupts mobile service Power outages and transmission failures from the Kumamoto earthquake left KDDI and rivals' mobile services down in parts of the prefecture, with no restoration timeline. This adds repair costs and short-term customer inconvenience.

    A natural disaster causing network outages directly hurts KDDI's operations and may require costly repairs, a negative event.

Latest
▲2▼2

KDDI Expands Connected-Car and Stablecoin Pilots, but Data Leak and Quake Hit

  • Massive email/password leak confirmed KDDI confirmed 12.23 million email addresses and 7.62 million passwords leaked from its email system. This raises the risk of customer loss, fines, and repair costs, weighing on the share price.

    A large security breach directly threatens KDDI's reputation and costs, a key negative force on the stock.

  • BMW connected-car deal with Verizon KDDI's platform will manage 5G/LTE connectivity for new BMW and MINI cars in the U.S. via Verizon. This adds a major automaker client, supporting future service revenue and showing KDDI's global reach.

    A new international contract expands KDDI's high-value connected-car business, a positive growth driver.

  • Stablecoin payment pilot at Lawson KDDI and Lawson will test Japan's first in-store stablecoin payment using JPYC at a KDDI-operated store. Success could open new payment revenue and position KDDI in digital finance.

    This pilot shows KDDI testing a new technology that could become a future revenue stream, a positive innovation signal.

  • Kumamoto earthquake disrupts mobile service Power outages and transmission failures from the Kumamoto earthquake left KDDI and rivals' mobile services down in parts of the prefecture, with no restoration timeline. This adds repair costs and short-term customer inconvenience.

    A natural disaster causing network outages directly hurts KDDI's operations and may require costly repairs, a negative event.

Rakuten Group, Inc. (4755.JP)

Q3 2026
▲3▼1

Rakuten's satellite bet and first profit in seven years drive the story

  • Government grant for satellite network Japan will give Rakuten up to 148 billion yen to build a domestic satellite communications network, reducing reliance on foreign services like Starlink. This is a huge cash injection that lowers the cost and risk of a new growth business, supporting the share price.

    This is a major new capital boost that directly improves Rakuten's financial position and future prospects.

  • Joint venture with AST SpaceMobile Rakuten is forming a joint venture with AST SpaceMobile to offer satellite-powered mobile service in Japan, with coverage targeted for next year. This opens a new revenue stream and strengthens Rakuten Mobile's offering, which the market views as a positive growth driver.

    The JV is a concrete new business expansion that could add subscribers and revenue, directly impacting Rakuten's value.

  • First operating profit in seven years Rakuten reported a 50.4 billion yen operating profit for the June 2026 interim period, its first in seven years, as internet shopping and financial services grew strongly and mobile losses narrowed. This shows the core business is turning around, a key positive for the stock.

    Profitability is the most fundamental driver of share price, and this milestone signals a major improvement in Rakuten's financial health.

  • Mobile service disruptions after Kumamoto earthquake Rakuten Mobile's services were disrupted in Kumamoto after a powerful earthquake, with no timeline for restoration. While temporary, this highlights network vulnerability and could hurt customer trust and add costs, a modest negative for the stock.

    This is a new operational setback that could affect Rakuten Mobile's reputation and near-term performance.

July 2026
▲3▼1

Rakuten's satellite bet and first profit in seven years drive the story

  • Government grant for satellite network Japan will give Rakuten up to 148 billion yen to build a domestic satellite communications network, reducing reliance on foreign services like Starlink. This is a huge cash injection that lowers the cost and risk of a new growth business, supporting the share price.

    This is a major new capital boost that directly improves Rakuten's financial position and future prospects.

  • Joint venture with AST SpaceMobile Rakuten is forming a joint venture with AST SpaceMobile to offer satellite-powered mobile service in Japan, with coverage targeted for next year. This opens a new revenue stream and strengthens Rakuten Mobile's offering, which the market views as a positive growth driver.

    The JV is a concrete new business expansion that could add subscribers and revenue, directly impacting Rakuten's value.

  • First operating profit in seven years Rakuten reported a 50.4 billion yen operating profit for the June 2026 interim period, its first in seven years, as internet shopping and financial services grew strongly and mobile losses narrowed. This shows the core business is turning around, a key positive for the stock.

    Profitability is the most fundamental driver of share price, and this milestone signals a major improvement in Rakuten's financial health.

  • Mobile service disruptions after Kumamoto earthquake Rakuten Mobile's services were disrupted in Kumamoto after a powerful earthquake, with no timeline for restoration. While temporary, this highlights network vulnerability and could hurt customer trust and add costs, a modest negative for the stock.

    This is a new operational setback that could affect Rakuten Mobile's reputation and near-term performance.

Latest
▲3▼1

Rakuten's satellite bet and first profit in seven years drive the story

  • Government grant for satellite network Japan will give Rakuten up to 148 billion yen to build a domestic satellite communications network, reducing reliance on foreign services like Starlink. This is a huge cash injection that lowers the cost and risk of a new growth business, supporting the share price.

    This is a major new capital boost that directly improves Rakuten's financial position and future prospects.

  • Joint venture with AST SpaceMobile Rakuten is forming a joint venture with AST SpaceMobile to offer satellite-powered mobile service in Japan, with coverage targeted for next year. This opens a new revenue stream and strengthens Rakuten Mobile's offering, which the market views as a positive growth driver.

    The JV is a concrete new business expansion that could add subscribers and revenue, directly impacting Rakuten's value.

  • First operating profit in seven years Rakuten reported a 50.4 billion yen operating profit for the June 2026 interim period, its first in seven years, as internet shopping and financial services grew strongly and mobile losses narrowed. This shows the core business is turning around, a key positive for the stock.

    Profitability is the most fundamental driver of share price, and this milestone signals a major improvement in Rakuten's financial health.

  • Mobile service disruptions after Kumamoto earthquake Rakuten Mobile's services were disrupted in Kumamoto after a powerful earthquake, with no timeline for restoration. While temporary, this highlights network vulnerability and could hurt customer trust and add costs, a modest negative for the stock.

    This is a new operational setback that could affect Rakuten Mobile's reputation and near-term performance.

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