Mech-Mind Robotics (9615.HK) tumbled as much as 8% in Hong Kong trading, hitting an intraday low of HKD 75.40 before paring losses to HKD 78.50.

The stock has fallen more than 27% from its offer price of HKD 107.70 since listing on Sept. 1, declining for four consecutive sessions. The previous day's 15.67% drop came on turnover of roughly HKD 38.37 million.

Mech-Mind Robotics broke below its IPO price on the first day of trading and has continued to seek a floor, with investors' unrealized losses widening markedly.