4888.T Stella Pharma (JPX) jumps 30.71% to JPY 315.00 on 27 Jan 2026: momentum

4888.T stock surged 30.71% intraday to JPY 315.00 on 27 Jan 2026 on a volume spike of 10,058,100 shares. The move lifted Stella Pharma Corporation (4888.T) above its 50-day average of JPY 237.48, while trading well below its 52-week high of JPY 530.00. This intraday gain reflects heavy retail and speculative flows on the JPX, and it shifts short-term momentum indicators into positive territory. We assess catalysts, valuation, technical setup, and Meyka AI’s forecast to frame trading and risk decisions.