Pre-Market Top Loser 4082.T Daiichi Kigenso (JPX) down 20.99% Jan 23, 2026: watch JPY 2,704 support

4082.T stock plunged 20.99% pre-market to JPY 2718.00 on Jan 23, 2026 after heavy selling and high volume. The move follows a gap down from an open at JPY 3290.00 and a intraday low at JPY 2704.00, with volume at 5,013,000.00 shares. Investors are reacting to sector weakness in Basic Materials and profit-taking after a strong multi-month run. We use Meyka AI-powered market analysis platform data to explain drivers, near-term levels, and risk-reward for traders and longer-term holders.