Volume spike 33,100 shares for 6640.T I-PEX on JPX 05 Feb 2026: monitor liquidity

6640.T stock recorded a clear volume spike on JPX on 05 Feb 2026, with 33,100 shares traded versus an average of 646.00. The price closed at JPY 2,938.00, up JPY 1.00 (0.03%), while relative volume sat at 51.24x, a textbook liquidity signal. No corporate release accompanied the move, so traders should treat the spike as a potential institutional block or rebalancing trade. We examine trading flow, valuation, technicals, and a short-term forecast to frame the signal for investors and traders.