Refr silicon investor. 05 (-3. 4k Corporate Overview Research Frontiers’ SPD-Smart light-control technology enables any window, sunroof or skylight to control the transmission of light by electrically aligning nanoparticles in the film. Ads provide a critical source of revenue to the continued operation of Silicon Investor. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is Stock discussion groups and message boards for investment analysis. (REFR) stock price, news, financials, community insights, and trading ideas. If you are not using an ad blocker but are still receiving this message Ads provide a critical source of revenue to the continued operation of Silicon Investor. Join 10 million+ investors and traders tracking markets in real-time on Stocktwits. A high-level overview of Research Frontiers Incorporated (REFR) stock. (0. Sep 23, 2025 ยท A detailed overview of Research Frontiers Incorporated (REFR) stock, including real-time price, chart, key statistics, news, and more. gd4v hff u7 gzuc kybeat phj leqrv ozdem hqloj vglii1