5838.T Rakuten Bank (JPX) down 20.09% intraday 27 Feb 2026: review key risks

The market moved sharply against 5838.T stock on 27 Feb 2026 after parent Rakuten reopened fintech restructuring talks, driving an intraday drop of -20.09% to JPY 6,359.00. Trading volume surged to 7,774,800.00 shares, nearly 4.30 times average volume, as investors digested strategic uncertainty. We review the price action, fundamentals, technicals and our model forecast to explain what the sell-off means for JPX-listed Rakuten Bank, Ltd.