Pre-market 21 Mar 2026: 4259.T ExaWizards JPY 626, -5.44% signal for AI stocks

We start pre-market on 21 Mar 2026 with 4259.T stock trading at JPY 626.00, down 5.44% from the prior close. Volume is active at 1,588,900 shares on the JPX in Japan and price momentum shows short-term selling. We highlight valuation, technicals, and a model forecast that suggests downside near the medium-term pricing, while AI demand keeps the growth story intact.