Let’s figure out what is behind this uncommon Research frontier (REFR) stock activity ‎this morning?

TDOC Stock

Research Frontiers (NASDAQ: REFR) stock was down -23.60% to $3.01 in the pre-market session. The Company manufactures high-tech protective films that instantly, precisely, and uniformly control the shading of glass or plastic products, whether manually or automatically. Over 40 companies have licensed Research Frontiers’ smart glass technology, including well-known chemical, material science, and glass companies. […]