SoftBank’s surge gave the Nikkei 225 a lift on Friday, but the benchmark is still on track to end the week lower as traders step back from Japan’s hottest AI-linked names and reassess how much of this year’s rally was already priced in.
SoftBank Lifts Nikkei as Weekly Loss Persists

That matters because the Nikkei’s advance has been driven by a narrow group of heavyweight growth stocks, not broad-based conviction. When SoftBank rallies sharply, it can mask weakness elsewhere, but it also exposes how dependent Japan’s equity market has become on a handful of momentum trades tied to artificial intelligence, semiconductor demand and overseas risk appetite.

SoftBank Group climbed 6.4% in the latest session to 5,590 yen, helping offset pressure on the broader index. The Nikkei rose to 65,020.94, but it remains below the levels seen earlier in the week and is still headed for a weekly decline. That leaves investors weighing whether Japan’s market can sustain another leg higher without fresh earnings momentum or a more durable improvement in global sentiment.
The technical picture suggests the rally is not yet healthy enough to call a clean breakout. SoftBank is trading just above its 50-day moving average at 5,622 yen, while its RSI reading of 44.3 shows the stock has cooled from overbought territory earlier in the summer. The Nikkei’s RSI at 28.1 points to oversold conditions, but not necessarily a clean reversal. In other words, the market looks capable of a bounce, yet still vulnerable to another pullback if overseas buyers stay cautious.
For investors, the key issue is not whether SoftBank can move 5% or 6% in a day — it is whether Japan’s AI and tech complex can keep attracting capital when U.S. equities remain fragile and global risk signals are mixed. The latest read from Adalytica.com shows the S&P 500 in Extreme Fear, while Japanese yen trading signals remain neutral, suggesting cross-asset positioning is still unstable rather than decisively risk-on.
That creates a clear setup. If the Nikkei’s next advance is again led by SoftBank and a few megacap names, the trade remains a tactical one. If broader participation returns — banks, industrials and exporters joining the move — then Japan’s market could be setting up for a more durable re-rating. Until then, the message is straightforward: buy the dip selectively, but treat every rally led by SoftBank as evidence of opportunity, not confirmation of a full recovery.
| Entity | Gains | Losses |
|---|---|---|
| SoftBank Group | ▲Momentum traders | ▼Short sellers |
| Nikkei 225 bulls | ▲Dip buyers | ▼Weekly trend followers |
| Japanese exporters | ▲Weaker yen support | ▼Importers’ margins |
| U.S. risk assets | ▲Spillover stabilization | ▼Fear-driven sellers |




