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Research Frontiers Incorporated (REFR)

Research Frontiers Incorporated at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

Research Frontiers Incorporated (REFR) is a Hardware, Equipment & Parts company based in US with a market capitalization of $26.7M. Revenue declined 16.0% year-over-year and free cash flow was negative at -$1.3M. This page tracks REFR's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 6 employees · IPO Jul 8, 1986

Valuation

Valuation & price

$0.80 · as of May 17, 2026 · -66.1% vs 52w high

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P/E ratio

Latest-FY diluted EPS

28.57

P/B ratio

Market cap ÷ book equity

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Dividend yield

Price — last 12 months

$2.02$1.27$0.53Jul 25Dec 25Jun 26Jul 7, 25$1.57Jul 9, 25$1.51Jul 11, 25$1.58Jul 15, 25$1.66Jul 17, 25$1.79Jul 21, 25$1.72Jul 23, 25$1.83Jul 25, 25$1.84Jul 29, 25$1.62Jul 31, 25$1.58Aug 4, 25$1.58Aug 6, 25$1.53Aug 8, 25$1.53Aug 12, 25$1.50Aug 14, 25$1.52Aug 18, 25$1.47Aug 20, 25$1.39Aug 22, 25$1.40Aug 27, 25$1.40Aug 29, 25$1.35Sep 3, 25$1.32Sep 5, 25$1.29Sep 9, 25$1.25Sep 11, 25$1.27Sep 15, 25$1.26Sep 17, 25$1.38Sep 19, 25$1.43Sep 23, 25$1.42Sep 25, 25$1.56Sep 29, 25$1.51Oct 1, 25$1.57Oct 3, 25$1.44Oct 7, 25$1.79Oct 9, 25$1.89Oct 13, 25$1.82Oct 16, 25$1.62Oct 20, 25$1.73Oct 22, 25$1.65Oct 24, 25$2.00Oct 28, 25$2.02Oct 30, 25$1.84Nov 3, 25$1.88Nov 5, 25$1.71Nov 7, 25$1.58Nov 11, 25$1.74Nov 13, 25$1.87Nov 17, 25$1.62Nov 19, 25$1.76Nov 21, 25$1.99Nov 25, 25$1.93Nov 28, 25$1.89Dec 2, 25$1.63Dec 5, 25$1.62Dec 9, 25$1.59Dec 11, 25$1.56Dec 15, 25$1.56Dec 17, 25$1.44Dec 19, 25$1.46Dec 23, 25$1.41Dec 26, 25$1.38Dec 30, 25$1.32Jan 2, 26$1.28Jan 6, 26$1.32Jan 8, 26$1.27Jan 12, 26$1.28Jan 14, 26$1.36Jan 16, 26$1.33Jan 21, 26$1.24Jan 23, 26$1.27Jan 28, 26$1.27Jan 30, 26$1.20Feb 3, 26$1.16Feb 5, 26$1.13Feb 9, 26$1.03Feb 11, 26$1.04Feb 13, 26$1.00Feb 18, 26$1.01Feb 20, 26$1.11Feb 24, 26$1.10Feb 26, 26$0.98Mar 2, 26$1.03Mar 4, 26$1.01Mar 6, 26$0.98Mar 10, 26$0.93Mar 12, 26$1.02Mar 16, 26$1.01Mar 19, 26$1.02Mar 23, 26$0.86Mar 25, 26$0.83Mar 27, 26$0.89Mar 31, 26$0.92Apr 2, 26$0.93Apr 7, 26$0.93Apr 9, 26$0.94Apr 13, 26$0.93Apr 15, 26$0.91Apr 17, 26$0.93Apr 21, 26$0.99Apr 23, 26$1.00Apr 27, 26$0.95Apr 29, 26$0.94May 1, 26$0.88May 5, 26$0.87May 8, 26$0.75May 12, 26$0.78May 14, 26$0.81May 18, 26$0.79May 20, 26$0.75May 22, 26$0.75May 27, 26$0.75May 29, 26$0.77Jun 2, 26$0.76Jun 4, 26$0.75Jun 8, 26$0.73Jun 10, 26$0.73Jun 12, 26$0.71Jun 16, 26$0.67Jun 18, 26$0.60Jun 23, 26$0.61Jun 29, 26$0.53
$0.4852-week range$2.36
Loading valuation history…

Fundamentals

Key fundamentals

$26.7M

Market cap

-16.0%

Revenue growth (YoY)

83.3%

Gross margin

-$1.3M

Free cash flow (USD)

$502K

Net debt

0.4%

Share dilution

0/5

Graham criteria passed

Defensive-investor screen

Technology

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$1.2MFY 2017$1.5MFY 2018$1.5MFY 2019$1.6MFY 2020$828.5KFY 2021$1.3MFY 2022$539.7KFY 2023$909.6KFY 2024$1.3MFY 2025$1.1M
$1.2M$1.1M

Free cash flow by year

2016 → 2025

FY 2016$-4.0MFY 2017$-1.5MFY 2018$-2.1MFY 2019$-2.1MFY 2020$-2.3MFY 2021$-1.8MFY 2022$-2.2MFY 2023$-2.3MFY 2024$-790.4KFY 2025$-1.3M
-$4M-$1.3M

Gross margin by year

2021 → 2025

FY 2021100.0%FY 2022100.0%FY 2023-159.4%FY 202480.3%FY 202583.3%
100.0%83.3%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

0

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 8, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • 8-K eventAnnual Meeting ResultsJun 12, 2026Filing
  • 8-K eventDelisting NoticeJun 5, 2026Filing
  • Quarterly report10-Q FiledMay 8, 2026Filing

Questions

Frequently asked questions

What is Research Frontiers Incorporated's market cap?

Research Frontiers Incorporated (REFR) has a market capitalization of $26.7M.

What is REFR's P/E ratio?

A meaningful P/E ratio is not available for REFR — the company's latest fiscal-year earnings per share is zero, negative, or not yet cached.

What is REFR's price-to-book (P/B) ratio?

REFR trades at 28.57 times book value per share.

Are insiders buying REFR stock?

SEC Form 4 filings show no open-market insider buys at Research Frontiers Incorporated in the last 90 days (0 sells).

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

Search the actual 10-K / 10-Q text with AI research angles

News

Latest press coverage in one feed

Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.