0503.HK Lansen Pharmaceutical HKSE pre-market +40.94% Feb 2026: watch liquidity

0503.HK stock surged 40.94% in pre-market trade on 27 Feb 2026, trading at HKD 1.79 after an open at HKD 1.46. Volume spiked to 13,959,137.00 versus an average of 476,561.00, giving a relative volume near 29.29. This high-volume move on the Hong Kong Stock Exchange (HKSE) signals a strong intraday interest and potential news-driven rotation. We outline the trade drivers, valuation, Meyka AI forecasts and practical price targets for traders and investors watching liquidity and catalysts.