SoftBank Dethrones Toyota as Japan's Most Valuable Company

When the €75 billion SoftBank-France deal was announced, the focus was on the handshakes in Paris and the headline figure. What mattered more came a few days later.

On Monday, June 1, 2026, SoftBank's stock jumped 10.3% in Tokyo trading, according to Reuters. That single move added 618 points to the Nikkei's total 709-point gain for the day — one company drove nearly 87% of Japan's benchmark index rally.

The result: SoftBank's market cap swelled to approximately 47.2 trillion yen ($296 billion). Toyota's cratered to around 45.7 trillion yen ($286.5 billion) after its shares dropped 4.8% in the same session, according to Economic Times reporting citing Reuters. Toyota is now second. For the first time.

The Nikkei Hits 67,000 — But It's a Narrow Story

Japan's Nikkei index briefly surpassed 67,000 for the first time ever on Monday morning, peaking at 67,231.28 before settling into the midday break at 67,038.24, a gain of 1.1%, per Reuters.

The wider Topix index actually fell 0.2% on the same day. Market breadth within the Nikkei itself was negative — only 73 of 225 components advanced while 152 declined, according to kz.kursiv.media.

This was not a broad market rally. This was one AI trade dominating the index while the rest of the market went sideways or worse.

The Losers Nobody's Talking About

While SoftBank gained ground, Japan's auto sector got hammered. Auto-related shares dropped 4.2% as an industry group, per kz.kursiv.media. Mitsubishi Motors was the single biggest Nikkei loser, down 9.1%. Nissan shed 7.2%. Advantest fell 2.2%. Fujikura dropped 3.6%.

Capital rotated hard and fast from old-economy Japan to AI-economy Japan. Toyota's decline wasn't random. The market was signaling which century it's betting on.

SoftBank's Annual Profit Quadrupled

SoftBank announced last month that its annual net profit quadrupled to more than $30 billion, driven primarily by its stake in OpenAI.

Most mainstream coverage is treating this week's market move as purely a reaction to the France announcement. SoftBank is on a sustained run. Shares are up more than 70% in 2026 alone, according to CNBC. The France deal was the match — the fuel had been building for months.

Son's Bigger Number: $750 Billion

CEO Masayoshi Son confirmed the €75 billion figure in a joint press briefing with French President Emmanuel Macron. But Son added something getting underreported: when you account for the full system — project financing, hyperscaler customers, the full ecosystem buildout — the total investment picture is closer to $750 billion, per CNBC.

The €75 billion figure is just the direct SoftBank commitment. The broader economic footprint is an order of magnitude larger.

SoftBank said it would partner with French engineering company Schneider Electric to develop a large-scale industrial production cluster in Dunkirk. The initial phase targets 3.1 GW of AI data center capacity in northern France's Hauts-de-France region by 2031, covering sites in Dunkirk, Bosquel, and Bouchain, per CNBC.

What Mainstream Coverage Is Getting Wrong

Most outlets are framing this as a French diplomatic win for Macron. That's incomplete.

This is equally a Japan story. SoftBank just fundamentally changed Japan's corporate landscape in a single trading session. The company that defined post-war Japanese industrial dominance — Toyota — just got bumped by a tech investor who bet big on OpenAI and AI infrastructure.

Son offered an explicit warning. "There's no choice," he told reporters alongside Macron. "U.S. is going fast, China is going fast, Europe, Japan, Asia have to also go fast, not to be left out." That's a competitive alarm bell from the man who just became the king of Japanese markets.

Energy costs in Europe remain a barrier to AI competitiveness. France's nuclear-heavy grid gives it a structural advantage over most European competitors — a key reason Son chose France.

The Numbers Speak for Themselves

SoftBank is now Japan's most valuable company, worth more than Toyota, riding a $30 billion profit year and a stock that's up 70% in 2026. The France deal moved markets across an entire nation.

AI infrastructure is where the serious money is going. The U.S., France, and Japan all just got a reminder that this race has no pause button.