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Compare stocks with our powerful stock comparison tool. Analyze fundamentals, price performance, and key financial indicators to make informed investment decisions. Our tool lets you compare up to ten stocks side by side based on Performance Charts, Price & Volume, MarketRank™, Analyst Ratings, Sales & Book Value, Profitability & Earnings, Dividends, Debt, Ownership, Headlines, and more. Simply enter up to ten stock symbols (e.g., BAC, JPM, WFC, C, GS) to get started and uncover top investment opportunities.

Compare
CompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's Volume
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
$2.65
-0.5%		$3.22
$1.64
▼
$10.11
$80.30M-0.262.14 million shs27,555 shs
Interlink Electronics, Inc. stock logo
LINK
Interlink Electronics
$3.94
-9.8%		$5.21
$2.66
▼
$6.88
$62.13MN/A53,719 shs257 shs
Research Frontiers Incorporated stock logo
REFR
Research Frontiers
$0.42
-11.7%		$0.54
$0.34
▼
$2.70
$14.61M0.59555,682 shs484 shs
RF Industries, Ltd. stock logo
RFIL
RF Industries
$6.79
-7.3%		$9.24
$5.54
▼
$22.30
$73.65M1.34268,438 shs5,608 shs
The Infrastructure's Backbone: 10 Stocks Powering the AI Buildout Cover
The Infrastructure's Backbone: 10 Stocks Powering the AI Buildout

The AI boom extends far beyond the biggest tech names. Discover 10 companies supplying the memory, storage, networking, semiconductor manufacturing, and power infrastructure that make AI possible. Learn where the next wave of AI investment opportunities may emerge—and the key risks investors should watch as the global AI buildout accelerates.

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Compare Price Performance

Company1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year Performance
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
-2.92%+3.50%-21.76%-50.83%-17.90%
Interlink Electronics, Inc. stock logo
LINK
Interlink Electronics
-7.78%-2.42%-24.81%-17.08%-34.93%
Research Frontiers Incorporated stock logo
REFR
Research Frontiers
-5.18%-29.64%-42.26%-2.49%-72.73%
RF Industries, Ltd. stock logo
RFIL
RF Industries
-8.06%-8.06%-20.26%-45.99%-11.21%
CompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's Volume
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
$2.65
-0.5%		$3.22
$1.64
▼
$10.11
$80.30M-0.262.14 million shs27,555 shs
Interlink Electronics, Inc. stock logo
LINK
Interlink Electronics
$3.94
-9.8%		$5.21
$2.66
▼
$6.88
$62.13MN/A53,719 shs257 shs
Research Frontiers Incorporated stock logo
REFR
Research Frontiers
$0.42
-11.7%		$0.54
$0.34
▼
$2.70
$14.61M0.59555,682 shs484 shs
RF Industries, Ltd. stock logo
RFIL
RF Industries
$6.79
-7.3%		$9.24
$5.54
▼
$22.30
$73.65M1.34268,438 shs5,608 shs
The Infrastructure's Backbone: 10 Stocks Powering the AI Buildout Cover
The Infrastructure's Backbone: 10 Stocks Powering the AI Buildout

The AI boom extends far beyond the biggest tech names. Discover 10 companies supplying the memory, storage, networking, semiconductor manufacturing, and power infrastructure that make AI possible. Learn where the next wave of AI investment opportunities may emerge—and the key risks investors should watch as the global AI buildout accelerates.

Get This Free Report

Compare Price Performance

Company1-Day Performance7-Day Performance30-Day Performance90-Day Performance1-Year Performance
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
-2.92%+3.50%-21.76%-50.83%-17.90%
Interlink Electronics, Inc. stock logo
LINK
Interlink Electronics
-7.78%-2.42%-24.81%-17.08%-34.93%
Research Frontiers Incorporated stock logo
REFR
Research Frontiers
-5.18%-29.64%-42.26%-2.49%-72.73%
RF Industries, Ltd. stock logo
RFIL
RF Industries
-8.06%-8.06%-20.26%-45.99%-11.21%
CompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current Price
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
2.00
Hold$7.00164.55% Upside
Interlink Electronics, Inc. stock logo
LINK
Interlink Electronics
1.00
SellN/AN/A
Research Frontiers Incorporated stock logo
REFR
Research Frontiers
1.00
SellN/AN/A
RF Industries, Ltd. stock logo
RFIL
RF Industries
2.50
Moderate Buy$14.50113.68% Upside

Current Analyst Ratings Breakdown

Latest REFR, RFIL, AMPG, and LINK Analyst Ratings

DateCompanyBrokerageActionRatingPrice TargetDetails
10/15/2026
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
Weiss Ratings logo
Weiss Ratings
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Reiterated RatingSell (D-)
9/25/2026
RF Industries, Ltd. stock logo
RFIL
RF Industries
Weiss Ratings logo
Weiss Ratings
Subscribe to MarketBeat All Access to unlock brokerage rankings
UpgradeHold (C-) ➝ Hold (C)
9/21/2026
Research Frontiers Incorporated stock logo
REFR
Research Frontiers
Weiss Ratings logo
Weiss Ratings
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Reiterated RatingSell (E+)
9/15/2026
RF Industries, Ltd. stock logo
RFIL
RF Industries
Lake Street Capital logo
Lake Street Capital
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Lower Price TargetBuy$19.00 ➝ $17.00
9/15/2026
RF Industries, Ltd. stock logo
RFIL
RF Industries
B. Riley Financial, Inc. logo
B. Riley Financial
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Lower Price TargetBuy$15.00 ➝ $12.00
9/11/2026
RF Industries, Ltd. stock logo
RFIL
RF Industries
Weiss Ratings logo
Weiss Ratings
Subscribe to MarketBeat All Access to unlock brokerage rankings
DowngradeHold (C) ➝ Hold (C-)
9/8/2026
Interlink Electronics, Inc. stock logo
LINK
Interlink Electronics
Weiss Ratings logo
Weiss Ratings
Subscribe to MarketBeat All Access to unlock brokerage rankings
Reiterated RatingSell (E+)
8/27/2026
RF Industries, Ltd. stock logo
RFIL
RF Industries
Weiss Ratings logo
Weiss Ratings
Subscribe to MarketBeat All Access to unlock brokerage rankings
UpgradeHold (C-) ➝ Hold (C)
8/21/2026
RF Industries, Ltd. stock logo
RFIL
RF Industries
B. Riley Financial, Inc. logo
B. Riley Financial
Subscribe to MarketBeat All Access to unlock brokerage rankings
UpgradeNeutral ➝ Buy$18.00 ➝ $15.00
8/20/2026
RF Industries, Ltd. stock logo
RFIL
RF Industries
Zacks Research logo
Zacks Research
Subscribe to MarketBeat All Access to unlock brokerage rankings
DowngradeStrong-Buy ➝ Hold
8/13/2026
RF Industries, Ltd. stock logo
RFIL
RF Industries
Lake Street Capital logo
Lake Street Capital
Subscribe to MarketBeat All Access to unlock brokerage rankings
Initiated CoverageBuy$19.00
(Data available from 10/23/2023 forward. View 10+ years of historical ratings with our analyst ratings screener.)
CompanyAnnual RevenuePrice/SalesCashflowPrice/CashBook ValuePrice/Book
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
$25.20M3.16N/AN/A$1.43 per share1.85
Interlink Electronics, Inc. stock logo
LINK
Interlink Electronics
$11.89M5.22N/AN/A$0.59 per share6.68
Research Frontiers Incorporated stock logo
REFR
Research Frontiers
$1.12M13.05N/AN/A$0.03 per share13.97
RF Industries, Ltd. stock logo
RFIL
RF Industries
$80.59M0.91$0.53 per share12.76$3.30 per share2.06
CompanyNet IncomeEPSTrailing P/E RatioForward P/E RatioP/E GrowthNet MarginsReturn on Equity (ROE)Return on Assets (ROA)Next Earnings Date
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
-$7.01M-$0.34N/AN/AN/A-33.37%-19.55%-14.76%11/12/2026 (Estimated)
Interlink Electronics, Inc. stock logo
LINK
Interlink Electronics
-$1.62M-$0.07N/AN/AN/A-8.95%-12.38%-9.81%11/5/2026 (Estimated)
Research Frontiers Incorporated stock logo
REFR
Research Frontiers
-$2.05M-$0.07N/AN/AN/A-344.56%-168.54%-85.08%11/5/2026 (Estimated)
RF Industries, Ltd. stock logo
RFIL
RF Industries
$80K$0.2230.8610.28N/A2.83%15.32%7.80%N/A

Latest REFR, RFIL, AMPG, and LINK Earnings

DateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails
11/12/2026Q3 2026
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
$0.12N/AN/AN/A$14.00 millionN/A
11/5/2026Q3 2026
Interlink Electronics, Inc. stock logo
LINK
Interlink Electronics
-$0.02N/AN/AN/A$3.40 millionN/A
9/14/2026Q3 2026
RF Industries, Ltd. stock logo
RFIL
RF Industries
$0.20$0.19-$0.01$0.12$23.28 million$23.96 million
8/13/2026Q2 2026
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
-$0.02-$0.12-$0.10-$0.12$8.00 million$8.07 million
8/13/2026Q2 2026
Interlink Electronics, Inc. stock logo
LINK
Interlink Electronics
-$0.0267$0.02+$0.0467$0.02$3.10 million$3.77 million
8/6/2026Q2 2026
Research Frontiers Incorporated stock logo
REFR
Research Frontiers
N/A-$0.02N/A-$0.02N/A$0.09 million
CompanyAnnual PayoutDividend Yield5-Year Annualized Dividend GrowthPayout RatioYears of Consecutive Growth
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
N/AN/AN/AN/AN/A
Interlink Electronics, Inc. stock logo
LINK
Interlink Electronics
N/AN/AN/AN/AN/A
Research Frontiers Incorporated stock logo
REFR
Research Frontiers
N/AN/AN/AN/AN/A
RF Industries, Ltd. stock logo
RFIL
RF Industries
N/AN/A-100.00%N/AN/A
CompanyDebt-to-Equity RatioCurrent RatioQuick Ratio
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
N/A
3.76
2.61
Interlink Electronics, Inc. stock logo
LINK
Interlink Electronics
N/A
4.58
3.21
Research Frontiers Incorporated stock logo
REFR
Research Frontiers
N/A
3.54
3.54
RF Industries, Ltd. stock logo
RFIL
RF Industries
N/A
2.02
1.29

Institutional Ownership

CompanyInstitutional Ownership
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
10.99%
Interlink Electronics, Inc. stock logo
LINK
Interlink Electronics
N/A
Research Frontiers Incorporated stock logo
REFR
Research Frontiers
11.91%
RF Industries, Ltd. stock logo
RFIL
RF Industries
23.49%

Insider Ownership

CompanyInsider Ownership
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
12.29%
Interlink Electronics, Inc. stock logo
LINK
Interlink Electronics
77.50%
Research Frontiers Incorporated stock logo
REFR
Research Frontiers
6.54%
RF Industries, Ltd. stock logo
RFIL
RF Industries
20.40%
CompanyEmployeesShares OutstandingFree FloatOptionable
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
4730.13 million26.42 millionOptionable
Interlink Electronics, Inc. stock logo
LINK
Interlink Electronics
9315.75 million3.54 millionNot Optionable
Research Frontiers Incorporated stock logo
REFR
Research Frontiers
534.87 million32.59 millionOptionable
RF Industries, Ltd. stock logo
RFIL
RF Industries
28910.85 million8.64 millionOptionable

Recent News About These Companies

Lake Street cuts target to USD 17 for RF Industries stock
October 20 at 5:43 PM  |  ad-hoc-news.deA
Lake Street keeps USD 17.00 target for RF Industries stock
October 15, 2026  |  ad-hoc-news.deA
Comparing Ingram Micro (NYSE:INGM) & RF Industries (NASDAQ:RFIL)
October 13, 2026  |  americanbankingnews.comhttps://www.americanbankingnews.com/?p=31114455
RF Industries (NASDAQ:RFIL) Stock Rating Upgraded by Wall Street Zen
October 10, 2026  |  marketbeat.comhttps://www.marketbeat.com/instant-alerts/analyst-rf-industries-nasdaq-rfil-stock-rating-upgraded-by-wall-street-zen-2026-10-10/
RF Industries (NASDAQ:RFIL) Stock Price Breaks Below Two Hundred Day Moving Average - Here's Why
October 9, 2026  |  marketbeat.comhttps://www.marketbeat.com/instant-alerts/price-rf-industries-nasdaq-rfil-stock-price-breaks-below-two-hundred-day-moving-average-heres-why-2026-10-09/
Analysts Are Bullish on These Industrial Goods Stocks: Geo Group (GEO), RF Industries (RFIL)
October 7, 2026  |  theglobeandmail.comhttps://www.theglobeandmail.com/investing/markets/stocks/GEO/pressreleases/5007008/analysts-are-bullish-on-these-industrial-goods-stocks-geo-group-geo-rf-industries-rfil/
RF Industries stock reports record quarterly revenue growth
October 6, 2026  |  ad-hoc-news.deA
B. Riley cuts target for RF Industries stock to USD 12.00
October 4, 2026  |  ad-hoc-news.deA
RF Industries consensus price target decreased by 14.71% to $14.79
October 2, 2026  |  msn.comhttps://www.msn.com/en-us/money/other/rf-industries-consensus-price-target-decreased-by-14-71-to-14-79/ar-AA2drp8L
B. Riley cuts target for RF Industries stock from USD 15 to USD 12
October 2, 2026  |  ad-hoc-news.deA
RF Industries (NASDAQ:RFIL) Share Price Breaks Below 200 Day Moving Average - Time to Sell?
October 1, 2026  |  marketbeat.comhttps://www.marketbeat.com/instant-alerts/price-rf-industries-nasdaq-rfil-share-price-breaks-below-200-day-moving-average-time-to-sell-2026-10-01/
RF Industries (NASDAQ:RFIL) Shares Cross Below 200-Day Moving Average - What's Next?
September 23, 2026  |  marketbeat.comhttps://www.marketbeat.com/instant-alerts/price-rf-industries-nasdaq-rfil-shares-cross-below-200-day-moving-average-whats-next-2026-09-23/
RF Industries (RFIL) Reports Stronger Profits. Can New Orders Sustain the Improved Product Mix?
September 20, 2026  |  insidermonkey.comhttps://www.insidermonkey.com/news/rf-industries-rfil-reports-stronger-profits-can-new-orders-sustain-the-improved-product-mix-1838702/
RF Industries Shareholders Back Board, Pay and Auditor
September 16, 2026  |  tipranks.comhttps://www.tipranks.com/news/company-announcements/rf-industries-shareholders-back-board-pay-and-auditor?utm_source=marketbeat.com&utm_medium=referral
Why RF Industries, Ltd.’s (RFIL) Stock Is Down 10.17%
September 15, 2026  |  aaii.comA
RF Industries' Q3 Earnings Call Centers on Q4 Sales & DAC Growth
September 15, 2026  |  zacks.comhttps://www.zacks.com/stock/news/2989902/rf-industries-q3-earnings-call-centers-on-q4-sales-dac-growth?cid=cs-stocknewsapi-ft-analyst_blog_plus|earnings_call_takeaways-2989902
B. Riley Cuts Price Target on RF Industries to $12 From $15, Keeps Buy Rating
September 15, 2026  |  marketscreener.comM
RF Industries profit nearly quadruples in record quarter
September 15, 2026  |  financial-news.co.ukhttps://www.financial-news.co.uk/rf-industries-profit-nearly-quadruples-in-record-quarter/
RF Industries (RFIL) Q3 2026 Earnings Call Transcript
September 15, 2026  |  finance.yahoo.comhttps://finance.yahoo.com/markets/stocks/articles/rf-industries-rfil-q3-2026-024324190.html
RF Industries: The Sell-Off Looks Overdone
September 14, 2026  |  seekingalpha.comhttps://seekingalpha.com/article/4946130-rf-industries-the-selloff-looks-overdone
RF Hesitates on Q3 Figures
September 14, 2026  |  baystreet.cahttps://www.baystreet.ca/stockstowatch/24030/RF-Hesitates-on-Q3-Figures

New MarketBeat Followers Over Time

Media Sentiment Over Time

AmpliTech Group stock logo

AmpliTech Group NASDAQ:AMPG

$2.65 -0.01 (-0.53%)
As of 09:52 AM Eastern
This is a fair market value price provided by Massive. Learn more.

AmpliTech Group, Inc. designs, engineers, and assembles micro-wave component-based amplifiers. The company's products include radio frequency (RF) amplifiers and related subsystems, such as low noise amplifiers for use in receivers of various communication systems comprising Wi-Fi, radar, satellite, base station, cell phone, radio, etc.; and medium power amplifiers that provide enhanced output power and gain in transceiver chains. It provides specialty microwave block downconverters used as a test device on satellite access point antennas; specialty microwave 1:2 Tx protection switch panels that is used in satellite communication earth stations; desktop/benchtop and compact wideband power amplifiers used in SATCOM rack mount systems, as well as test equipment used in integrators and manufacturers of various communications systems, such as cellular base stations, simulators, and point to point wireless radios; and waveguide to coaxial adapters for SATCOM and satellite internet gateway systems. In addition, the company offers cryogenic amplifiers for quantum computing, medical, RF imaging, research and development, space communications, accelerators, radiometry, and telephony applications; and cryogenic and non-cryogenic 4g/5g small cell subsystems for high-speed networks and airline Wi-Fi systems. Further, it provides custom assembly designs and non-recurring engineering services on a project-by-project basis, as well as IC packaging and lids products. The company serves aerospace, government, defense, commercial satellite, and wireless industries through sales representatives and distributors in the United States, Europe, the Middle East, and South Asia. AmpliTech Group, Inc. was founded in 2002 and is based in Hauppauge, New York.

Interlink Electronics stock logo

Interlink Electronics NASDAQ:LINK

$3.94 -0.43 (-9.79%)
As of 09:49 AM Eastern
This is a fair market value price provided by Massive. Learn more.

Interlink Electronics, Inc., together with its subsidiaries, designs, develops, manufactures, and sells force-sensing technologies that incorporate proprietary materials technology, firmware, and software into sensor-based products and custom sensor system solutions in the United States, Asia, the Middle East, Europe, and internationally. The company's products include sensor components, subassemblies, modules, and products that support cursor control and novel three-dimensional user inputs. It also provides simple force and piezo sensors to multi-finger capable rugged trackpads; Force-Sensing Resistor sensors; force sensing linear potentiometers for menu navigation and control; and integrated mouse modules and pointing solutions to various electronic devices. In addition, the company offers human machine interface technology platforms for various applications, including vehicle entry, vehicle multi-media control interface, rugged touch controls, presence detection, collision detection, speed and torque controls, pressure mapping, biological monitoring, and others; and embedded firmware development and integration support services. It serves multi-national and start-up companies, technology design houses, original design manufacturers, original equipment manufacturers, and universities in various markets, such as consumer electronics, automotive, industrial, and medical through direct sales employees, as well as outside sales representatives and distributors. Interlink Electronics, Inc. was incorporated in 1985 and is headquartered in Irvine, California.

Research Frontiers stock logo

Research Frontiers NASDAQ:REFR

$0.42 -0.06 (-11.72%)
As of 09:42 AM Eastern
This is a fair market value price provided by Massive. Learn more.

Research Frontiers Incorporated engages in the development and marketing of technology and devices to control the flow of light worldwide. It develops and licenses suspended particle device (SPD-Smart) light-control technology to companies that manufacture and market the SPD-Smart chemical emulsion, light-control film made from the chemical emulsion, the light-control panels made by laminating the film, and electronics to power end-products incorporating the film, as well as lamination services for and the end-products, such as windows, skylights, and sunroofs. The company's SPD-Smart light-control technology is used in various product applications, including windows, sunshades, skylights, and interior partitions for homes and buildings; automotive windows, sunroofs, sun-visors, sunshades, rear-view mirrors, instrument panels, and navigation systems; aircraft windows; museum display panels, and eyewear products; and flat panel displays for electronic products. It serves architectural, automotive, marine, and aerospace and appliance applications. The company was incorporated in 1965 and is headquartered in Woodbury, New York.

RF Industries stock logo

RF Industries NASDAQ:RFIL

$6.79 -0.53 (-7.30%)
As of 09:48 AM Eastern
This is a fair market value price provided by Massive. Learn more.

RF Industries, Ltd., together with its subsidiaries, designs, manufactures, and markets interconnect products and systems in the United States, Canada, Italy, Mexico, and internationally. The company operates through two segments, RF Connector and Cable Assembly, and Custom Cabling Manufacturing and Assembly. The company designs, manufactures, and distributes various coaxial connectors and cable assemblies that are integrated with coaxial connectors; custom copper and fiber cable assemblies, complex hybrid fiber optic and power solution cables, adapters, and electromechanical wiring harnesses for communication, computer, LAN, automotive, and medical equipment; energy-efficient cooling systems for wireless base stations and remote equipment shelters; and custom-designed pole-ready 5G small cell integrated enclosures. It also designs and manufactures cable assemblies and wiring harnesses for blue chip industrial, oilfield, instrumentation, medical, and military customers; connectivity solutions to telecommunications and data communications distributors; thermal control systems; and radio frequency and microwave distribution system products, such as dividers, directional couplers, and filters. The company sells its products through warehousing distributors and in-house marketing and sales team. It serves telecommunications carriers and equipment manufacturers, wireless and network infrastructure carriers, and original equipment manufacturers. The company was formerly known as Celltronics, Inc. and changed its name RF Industries, Ltd. in November 1990. RF Industries, Ltd. was incorporated in 1979 and is headquartered in San Diego, California.

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