Rubicon Technology (RBCN) has been in liquidation since early 2018. As of the most recent quarterly report, it is trading at approximately a 30 percent discount to net current assets (current share price is around $8.40). It has almost no operations anymore and operates around cash flow neutral at the moment. It has been trying to sell the last assets and operations it had as it was in liquidation.
On May 23rd, the company announced that instead of liquidating, it bought equipment and licenses to distribute certain pharmaceutical products. The share price