Nibbling a small position in stock 2390Zhihu, Inc. Class AHKEX_DLY:2390dchua1969At 0.60 times of price to sales , I think this company is undervalued, plus its net cash position, debt free, a growing monthly active users and active shares buyback program ! The concern is the top line revenue shrinking which is an intentional part from the management to move away from low margin advertising business, this figures should goes up in due course. Please DYODD