Nikkei 225 falls 2.5% as tech selloff breaks 50,000 support amid AI valuation fears

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Nikkei 225 tech selloff tests support

Highlights

- Nikkei 225 drops 2.5% to 50,212, losing the 50,000 threshold for the first time in weeks.

- SoftBank plunges 10% while major chipmakers fall between 4% and 8%.

- AI valuation anxiety and delayed U.S. rate cuts drive risk aversion across Asia.

The decline reflects growing skepticism toward overstretched AI-linked valuations and unease over the Federal Reserve’s rate-cut timing. After weeks of vertical gains, traders appear to be trimming exposure to high-valuation growth names that had powered Japan’s record run.

Tech losses ripple through the market

SoftBank Group led the slump, plunging 10% as investors scaled back positions in AI-heavy portfolios. Semiconductor and equipment makers Advantest, Lasertec, Fujikura, Tokyo Electron, and Disco Corp fell between 4% and 8%, erasing part of their recent momentum. Beyond tech, Toyota slipped 3.7% on weaker profit guidance, while Nintendo gained 6.2% on strong expectations for its next-generation Switch 2 console.

The rotation marks a pause in Japan’s post-pandemic equity surge, where speculative enthusiasm around artificial intelligence has dominated sentiment. With Wall Street warning of stretched valuations and tighter global liquidity, Japan’s tech sector faced synchronized selling that spilled across the broader market.

Chart signals short-term exhaustion

From a technical perspective, the Nikkei 225 had been climbing within a steep ascending channel since mid-September. Wednesday’s breakdown pushed price below both the intraday channel support and the Parabolic SAR, confirming a shift in momentum toward sellers.

Nikkei 225 index price dynamics (Source: TradingView)

The next critical support sits around 49,300, aligning with the 20-day exponential moving average (EMA). A close below that level exposes the broader trendline near 48,000, which has anchored the rally since April. A deeper slide could reach 46,800, where the 50-day EMA meets horizontal demand.

Despite the correction, the long-term picture remains positive. The 100-day and 200-day EMAs continue to rise, suggesting that institutional demand remains intact and the pullback may represent a consolidation phase rather than a structural reversal.

What comes next for investors

If buyers defend the 49,000–48,000 region, the index could stabilize and recover toward 50,600, signaling renewed bullish conviction. However, persistent weakness in global chip and AI names may extend volatility through November, especially if U.S. yields rise or the yen strengthens.

Focus now turns to Bank of Japan communication and upcoming corporate earnings revisions, which could determine whether the market treats this drop as a brief reset or a shift in cycle momentum.

Previously, we noted that the Nikkei 225’s rapid channel rally risked overheating as AI enthusiasm stretched valuations. That view has now materialized, with the index undergoing a natural correction. The key question is whether dip-buyers re-enter near trendline support or allow the pullback to deepen toward 48,000.

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