Go Pro

Compare Stocks

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.

CompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's Volume
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
$4.13
-31.1%
$6.56
$1.64
$10.11
$103.79M-0.22.43 million shs5.11 million shs
Syntec Optics Holdings, Inc. stock logo
OPTX
Syntec Optics
$8.57
-2.0%
$9.50
$1.18
$14.92
$346.01M-0.81.11 million shs61,977 shs
Richardson Electronics, Ltd. stock logo
RELL
Richardson Electronics
$20.64
+1.1%
$18.11
$9.37
$23.15
$303.48M1.28202,482 shs59,950 shs
RF Industries, Ltd. stock logo
RFIL
RF Industries
$13.48
+1.7%
$15.84
$5.54
$22.30
$146.69M1.29276,497 shs37,000 shs
(Almost)  Everything You Need To Know About The EV Market Cover

Looking to profit from the electric vehicle mega-trend? Click the link to see our list of which EV stocks show the most long-term potential.

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
-6.55%+10.31%-14.79%+103.05%+63.66%
Syntec Optics Holdings, Inc. stock logo
OPTX
Syntec Optics
+0.57%+18.24%+6.71%+22.21%+503.45%
Richardson Electronics, Ltd. stock logo
RELL
Richardson Electronics
-0.78%-1.59%+16.63%+20.34%+103.69%
RF Industries, Ltd. stock logo
RFIL
RF Industries
+0.76%+1.38%-16.88%-25.60%+83.26%
CompanyCurrent Price50-Day Moving Average52-Week RangeMarket CapBetaAvg. VolumeToday's Volume
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
$4.13
-31.1%
$6.56
$1.64
$10.11
$103.79M-0.22.43 million shs5.11 million shs
Syntec Optics Holdings, Inc. stock logo
OPTX
Syntec Optics
$8.57
-2.0%
$9.50
$1.18
$14.92
$346.01M-0.81.11 million shs61,977 shs
Richardson Electronics, Ltd. stock logo
RELL
Richardson Electronics
$20.64
+1.1%
$18.11
$9.37
$23.15
$303.48M1.28202,482 shs59,950 shs
RF Industries, Ltd. stock logo
RFIL
RF Industries
$13.48
+1.7%
$15.84
$5.54
$22.30
$146.69M1.29276,497 shs37,000 shs
(Almost)  Everything You Need To Know About The EV Market Cover

Looking to profit from the electric vehicle mega-trend? Click the link to see our list of which EV stocks show the most long-term potential.

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
-6.55%+10.31%-14.79%+103.05%+63.66%
Syntec Optics Holdings, Inc. stock logo
OPTX
Syntec Optics
+0.57%+18.24%+6.71%+22.21%+503.45%
Richardson Electronics, Ltd. stock logo
RELL
Richardson Electronics
-0.78%-1.59%+16.63%+20.34%+103.69%
RF Industries, Ltd. stock logo
RFIL
RF Industries
+0.76%+1.38%-16.88%-25.60%+83.26%
CompanyConsensus Rating ScoreConsensus RatingConsensus Price Target% Upside from Current Price
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
2.00
Hold$7.0069.37% Upside
Syntec Optics Holdings, Inc. stock logo
OPTX
Syntec Optics
1.00
SellN/AN/A
Richardson Electronics, Ltd. stock logo
RELL
Richardson Electronics
3.00
Buy$24.0019.66% Upside
RF Industries, Ltd. stock logo
RFIL
RF Industries
2.75
Moderate Buy$18.5038.15% Upside

Current Analyst Ratings Breakdown

Latest RFIL, OPTX, RELL, and AMPG Analyst Ratings

DateCompanyBrokerageActionRatingPrice TargetDetails
8/13/2026
RF Industries, Ltd. stock logo
RFIL
RF Industries
Initiated CoverageBuy$19.00
8/11/2026
RF Industries, Ltd. stock logo
RFIL
RF Industries
DowngradeHold (C)Hold (C-)
7/28/2026
Richardson Electronics, Ltd. stock logo
RELL
Richardson Electronics
UpgradeMarket PerformOutperform$14.00 ➝ $24.00
7/24/2026
Richardson Electronics, Ltd. stock logo
RELL
Richardson Electronics
UpgradeHoldStrong-Buy
7/22/2026
RF Industries, Ltd. stock logo
RFIL
RF Industries
UpgradeHoldStrong-Buy
7/20/2026
Richardson Electronics, Ltd. stock logo
RELL
Richardson Electronics
Reiterated RatingHold (C)
7/17/2026
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
Reiterated RatingSell (D-)
7/2/2026
Syntec Optics Holdings, Inc. stock logo
OPTX
Syntec Optics
Reiterated RatingSell (E+)
6/23/2026
RF Industries, Ltd. stock logo
RFIL
RF Industries
UpgradeHold (C-)Hold (C)
6/16/2026
RF Industries, Ltd. stock logo
RFIL
RF Industries
Boost Price TargetNeutral$11.25 ➝ $18.00
6/2/2026
RF Industries, Ltd. stock logo
RFIL
RF Industries
UpgradeSell (D+)Hold (C-)
(Data available from 8/14/2023 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
$25.20M4.16N/AN/A$1.43 per share2.89
Syntec Optics Holdings, Inc. stock logo
OPTX
Syntec Optics
$28.08M12.84$0.02 per share384.22$0.26 per share34.42
Richardson Electronics, Ltd. stock logo
RELL
Richardson Electronics
$228.56M1.29$0.63 per share31.73$11.19 per share1.79
RF Industries, Ltd. stock logo
RFIL
RF Industries
$80.59M1.80$0.58 per share22.92$3.30 per share4.06
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-$0.31N/AN/AN/A-24.82%-17.50%-12.92%N/A
Syntec Optics Holdings, Inc. stock logo
OPTX
Syntec Optics
-$1.79M-$0.06N/AN/AN/A-8.26%-25.81%-10.01%N/A
Richardson Electronics, Ltd. stock logo
RELL
Richardson Electronics
$6.38M$0.4446.5127.101.632.79%3.55%2.83%10/14/2026 (Estimated)
RF Industries, Ltd. stock logo
RFIL
RF Industries
$80K$0.1494.2417.17N/A1.70%12.79%6.32%9/10/2026 (Estimated)

Latest RFIL, OPTX, RELL, and AMPG Earnings

DateQuarterCompanyConsensus EstimateReported EPSBeat/MissGap EPSRevenue EstimateActual RevenueDetails
9/10/2026Q3 2026
RF Industries, Ltd. stock logo
RFIL
RF Industries
$0.20N/AN/AN/A$23.39 millionN/A
8/12/2026Q2 2026
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
-$0.02-$0.12-$0.10-$0.12$8.00 million$8.07 million
8/10/2026Q2 2026
Syntec Optics Holdings, Inc. stock logo
OPTX
Syntec Optics
N/A$0.01N/A$0.01N/A$8.27 million
7/22/2026Q4 2026
Richardson Electronics, Ltd. stock logo
RELL
Richardson Electronics
$0.07$0.21+$0.14$0.25$55.37 million$66.20 million
6/15/2026Q2 2026
RF Industries, Ltd. stock logo
RFIL
RF Industries
$0.09$0.14+$0.05$0.08$19.67 million$20.69 million
5/15/2026Q1 2026
Syntec Optics Holdings, Inc. stock logo
OPTX
Syntec Optics
N/A-$0.02N/A-$0.02N/A$6.51 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
Syntec Optics Holdings, Inc. stock logo
OPTX
Syntec Optics
N/AN/AN/AN/AN/A
Richardson Electronics, Ltd. stock logo
RELL
Richardson Electronics
$0.241.18%N/A54.55%N/A
RF Industries, Ltd. stock logo
RFIL
RF Industries
N/AN/A-100.00%N/AN/A

Latest AMPG, OPTX, RELL, and RFIL Dividends

AnnouncementCompanyPeriodAmountYieldEx-Dividend DateRecord DatePayable Date
7/21/2026
Richardson Electronics, Ltd. stock logo
RELL
Richardson Electronics
quarterly$0.061.16%8/7/20268/7/20268/26/2026
(Data available from 1/1/2013 forward)
CompanyDebt-to-Equity RatioCurrent RatioQuick Ratio
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
N/A
4.25
2.99
Syntec Optics Holdings, Inc. stock logo
OPTX
Syntec Optics
0.41
1.28
0.59
Richardson Electronics, Ltd. stock logo
RELL
Richardson Electronics
N/A
4.75
1.92
RF Industries, Ltd. stock logo
RFIL
RF Industries
N/A
1.89
1.11

Institutional Ownership

CompanyInstitutional Ownership
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
10.99%
Syntec Optics Holdings, Inc. stock logo
OPTX
Syntec Optics
N/A
Richardson Electronics, Ltd. stock logo
RELL
Richardson Electronics
71.95%
RF Industries, Ltd. stock logo
RFIL
RF Industries
23.49%

Insider Ownership

CompanyInsider Ownership
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
17.12%
Syntec Optics Holdings, Inc. stock logo
OPTX
Syntec Optics
0.83%
Richardson Electronics, Ltd. stock logo
RELL
Richardson Electronics
33.40%
RF Industries, Ltd. stock logo
RFIL
RF Industries
20.40%
CompanyEmployeesShares OutstandingFree FloatOptionable
AmpliTech Group, Inc. stock logo
AMPG
AmpliTech Group
4025.34 million21.00 millionNot Optionable
Syntec Optics Holdings, Inc. stock logo
OPTX
Syntec Optics
340.28 million39.95 millionN/A
Richardson Electronics, Ltd. stock logo
RELL
Richardson Electronics
45014.69 million9.79 millionOptionable
RF Industries, Ltd. stock logo
RFIL
RF Industries
34010.85 million8.64 millionOptionable

Recent News About These Companies

New Strong Buy Stocks for July 23rd
Best Value Stocks to Buy for July 23rd
RF Industries Sink on Russell Status
RF Industries, Ltd.: RF Industries Joins Russell 3000 Index
RF Industries Joins Russell 3000 Index

New MarketBeat Followers Over Time

Media Sentiment Over Time

Top Headlines

View All Headlines
AmpliTech Group stock logo

AmpliTech Group NASDAQ:AMPG

$4.12 -1.87 (-31.14%)
As of 11:19 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.

Syntec Optics stock logo

Syntec Optics NASDAQ:OPTX

$8.57 -0.18 (-2.05%)
As of 11:19 AM Eastern
This is a fair market value price provided by Massive. Learn more.

Syntec Optics Holdings, Inc. manufactures and supplies integrated optics for biomedical, defense and military, consumer, and other applications. It offers camera modules; tool design, design for manufacturing, optical and opto-mechanical design, and moldflow analysis; SPDT optics, such as freedom optics, microlens arrays, spheres and aspheres, diffractives, SPDT materials, and optical tooling; replicative molding, that includes polymer and glass molding, and molded production materials; thin film coating and coating curve materials; and precision machining and precision machining materials. The company also provides clean room assembly, such as opto mechanical, opto electronic, and integrated photonics; infrared optics, microlens arrays, software development, and optical metrology, and catalog optics services. In addition, it offers driverless cars, integrated photonics, robotics, sensors, VR and AR, machine vision, facial imagining, heads up display, finger print scanners, and laser scanners technology for consumers; night vision goggles, missile laser guides, biometrics, infrared and thermal imaging, ordnance optics, head mounted displays, 2D and 3D scanners, humvee lighting , laser targeting, protective domes and windows, and lidar technologies for defense and miliary; and medical diagnostic, microfluidics, surgical components and systems, and medical sensing technology for medical sectors. The company was founded in 1981 and is based in Rochester, New York.

Richardson Electronics stock logo

Richardson Electronics NASDAQ:RELL

$20.64 +0.23 (+1.12%)
As of 11:18 AM Eastern
This is a fair market value price provided by Massive. Learn more.

Richardson Electronics, Ltd. engages in the provision of engineered solutions, power grid and microwave tube, and related consumables worldwide. The Power and Microwave Technologies segment manufactures electron tubes and radio frequency (RF), microwave and power components used in semiconductor manufacturing equipment, RF, and wireless and industrial power applications, as well as various applications including broadcast transmission, CO2 laser cutting, diagnostic imaging, dielectric and induction heating, energy transfer, high voltage switching, plasma, power conversion, radar, and radiation oncology. This segment also provides thyratrons and rectifiers, power tubes, ignitrons, magnetrons, phototubes, microwave generators, ultracapacitor modules, and liquid crystal display monitors under the Amperex, Cetron, and National brands. The Green Energy Solutions segment offers design-in support, systems integration, prototype design and manufacturing, testing, logistics and aftermarket, and technical service and repair services for various applications, such as wind, solar, hydrogen, and electric vehicles; and other power management applications that support green solutions including synthetic diamond manufacturing. The Canvys segment provides custom display solutions, which includes touch screens, protective panels, custom enclosures, All-In-One computers, specialized cabinet finishes and application specific software packages, and certification services. The Healthcare segment provides diagnostic imaging replacement parts for CT and MRI systems, replacement CT and MRI tubes, CT service training, MRI and RF amplifiers, hydrogen thyratrons, klystrons, magnetrons, flat panel detector upgrades, pre-owned CT systems, and additional replacement solutions. It serves energy, healthcare, aviation, broadcast, communications, industrial, marine, medical, military, scientific, and semiconductor markets. The company was founded in 1947 and is headquartered in LaFox, Illinois.

RF Industries stock logo

RF Industries NASDAQ:RFIL

$13.48 +0.23 (+1.71%)
As of 11:19 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.