PERMA-FIX ENVIR is a professional waste management company, which provides hazardous, mixed, and industrial waste management services and environmental engineering and consulting services to industrial and commercial customers and the U.S. Government. The Company is active in the research and development of technologies that allow it to address its customer's needs. To date, the Company's R&D efforts have resulted in the granting of two patents and the filing of an additional eleven pending patent applications....
+See MoreSharpe-Lintner-Black CAPM alpha (Premium Members Only) Fama-French (1993) 3-factor alpha (Premium Members Only) Fama-French-Carhart 4-factor alpha (Premium Members Only) Fama-French (2015) 5-factor alpha (Premium Members Only) Fama-French-Carhart 6-factor alpha (Premium Members Only) Dynamic conditional 6-factor alpha (Premium Members Only) Last update: Saturday 11 October 2025
2023-01-09 10:31:00 Monday ET
Response to USPTO fintech patent protection As of early-January 2023, the U.S. Patent and Trademark Office (USPTO) has approved our U.S. utility patent
2017-06-21 05:36:00 Wednesday ET
In his latest Berkshire Hathaway annual letter to shareholders, Warren Buffett points out that many people misunderstand his stock investment method in seve
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2018-03-21 06:32:00 Wednesday ET
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2019-01-04 11:41:00 Friday ET
Chinese President Xi JingPing calls President Trump to reach Sino-American trade conflict resolution. Xi sends a congratulatory message to mark 40 years sin
2018-04-17 12:38:00 Tuesday ET
Value investment strategies make investors wiser like water with core fundamental factor analysis. Value investors tend to buy stocks below their intrinsic