Accuray Incorporated

ARAY Real Time Price USD
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Congress Trading

Recent trades of ARAY by members of U.S. Congress

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ARAY Stock Insider Trading Activity Follow @QuiverQuant for major insider updates
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ARAY Stock Institutional Owners
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Change in Shares
Market Value
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ARAY Derivatives Institutional Owners
Investor
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Reported
Whale Activity

Recently reported changes in ARAY holdings by institutional investors

Insider Trading

Quarterly net insider trading by ARAY's directors and management

* Insider trading data parsed from SEC Form 4 filings by Quiver Quantitative. Sign up for the Quiver API for real-time access.

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CAGR (Total)
Return (30d)
Return (1Y)
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Backtest Start Date

Key Metrics

Return (1d)

Return (30d)

Return (1Y)

CAGR (Total)

Max Drawdown

Beta

Alpha

Sharpe Ratio

Win Rate

Average Win

Average Loss

Annual Volatility

Annual Std Dev

Information Ratio

Treynor Ratio

Total Trades

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Metrics Definitions
  • Alpha

    Measures a portfolio's risk-adjusted performance against that of its benchmark

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  • Annual Standard Deviation

    Measures how much the portfolio's total return varies from its mean or average.

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  • Annual Volatility

    A statistical measure of the dispersion of returns for the portfolio.

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  • Average Win

    The average return (%) for trades that resulted in a positive return.

  • Average Loss

    The average return (%) for trades that resulted in a negative return.

  • Beta

    A measure of the volatility of the portfolio compared to the market as a whole.

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  • CAGR

    CAGR (Compounded Annual Growth Rate), is the historical annualized rate of return for an investment strategy, throughout the backtest period.

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  • Information Ratio

    A measurement of portfolio returns beyond the returns of its benchmark compared to the volatility of those returns.

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  • Max Drawdown

    the maximum observed loss from a peak to a trough of a portfolio, before a new peak is attained.

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  • Sharpe Ratio

    The Sharpe Ratio is a measure of historical risk-adjusted return, which quantifies the amount of return that an investor received per unit of risk.

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  • Total Trades

    The total number of trades made by this strategy.

  • Treynor Ratio

    Attempts to measure how successful an investment is in providing compensation to investors for taking on investment risk.

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  • Win Rate

    The percentage of total trades that resulted in a positive return.

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Corporate Lobbying

Government lobbying spending instances

  • $40,000 Oct 20, 2025 Issue: Medicare/Medicaid Trade (domestic/foreign)
  • $40,000 Sep 25, 2025 Issue: Medicare/Medicaid Trade (domestic/foreign)
  • $40,000 Jul 18, 2025 Issue: Medicare/Medicaid Trade (domestic/foreign)
  • $40,000 Apr 17, 2025 Issue: Medicare/Medicaid Trade (domestic/foreign)
  • $40,000 Oct 17, 2024 Issue: Trade (domestic/foreign) Medicare/Medicaid
  • $40,000 Jul 15, 2024 Issue: Trade (domestic/foreign) Health Issues Medicare/Medicaid
  • $40,000 Apr 17, 2024 Issue: Trade (domestic/foreign) Health Issues Medicare/Medicaid
  • $40,000 Oct 20, 2023 Issue: Trade (domestic/foreign) Health Issues Medicare/Medicaid
  • $40,000 Jul 20, 2023 Issue: Health Issues Medicare/Medicaid
  • $40,000 Jan 18, 2023 Issue: Medicare/Medicaid
  • $10,000 Nov 02, 2022 Issue: Health Issues
  • $40,000 Oct 19, 2022 Issue: Medicare/Medicaid
  • $10,000 Aug 08, 2022 Issue: Health Issues
  • $40,000 Jul 20, 2022 Issue: Trade (domestic/foreign) Medicare/Medicaid
  • $10,000 May 09, 2022 Issue: Health Issues
  • $40,000 Apr 18, 2022 Issue: Manufacturing Health Issues Medicare/Medicaid
  • $10,000 Feb 09, 2022 Issue: Health Issues
  • $40,000 Jan 18, 2022 Issue: Medicare/Medicaid Health Issues Manufacturing
  • $20,000 Nov 03, 2021 Issue: Taxation/Internal Revenue Code Health Issues
  • $40,000 Oct 23, 2021 Issue: Health Issues Medicare/Medicaid
  • $30,000 Aug 05, 2021 Issue: Taxation/Internal Revenue Code Health Issues
  • $40,000 Jul 22, 2021 Issue: Medicare/Medicaid Health Issues
  • $30,000 May 03, 2021 Issue: Health Issues Taxation/Internal Revenue Code
  • $40,000 Apr 20, 2021 Issue: Medicare/Medicaid Health Issues
  • $30,000 Feb 03, 2021 Issue: Health Issues Taxation/Internal Revenue Code
  • $40,000 Jan 20, 2021 Issue: Taxation/Internal Revenue Code Medicare/Medicaid
  • $30,000 Nov 05, 2020 Issue: Health Issues Taxation/Internal Revenue Code
  • $40,000 Oct 20, 2020 Issue: Medicare/Medicaid Taxation/Internal Revenue Code
  • $20,000 Aug 04, 2020 Issue: Health Issues
  • $40,000 Jul 20, 2020 Issue: Taxation/Internal Revenue Code Health Issues Medicare/Medicaid
  • $40,000 Apr 20, 2020 Issue: Health Issues Medicare/Medicaid
  • $40,000 Jan 21, 2020 Issue: Taxation/Internal Revenue Code Medicare/Medicaid Health Issues
  • $40,000 Oct 18, 2019 Issue: Taxation/Internal Revenue Code Health Issues Medicare/Medicaid
  • $40,000 Jul 12, 2019 Issue: Health Issues Medicare/Medicaid
  • $40,000 Apr 04, 2019 Issue: Medicare/Medicaid
  • $30,000 Jan 09, 2019 Issue: Medicare/Medicaid
  • $40,000 Oct 11, 2018 Issue: Medicare/Medicaid
  • $60,000 Jul 09, 2018 Issue: Medicare/Medicaid
  • $30,000 Apr 06, 2018 Issue: Medicare/Medicaid
  • $10,000 Oct 12, 2016 Issue: Health Issues
  • $10,000 Jul 20, 2016 Issue: Health Issues
  • $30,000 Jul 07, 2016 Issue: Health Issues
  • $10,000 Apr 20, 2016 Issue: Health Issues
  • $30,000 Apr 19, 2016 Issue: Health Issues
  • $30,000 Jan 20, 2016 Issue: Health Issues
  • $30,000 Oct 20, 2015 Issue: Health Issues
  • $30,000 Jul 23, 2015 Issue: Health Issues
  • $40,000 Apr 20, 2015 Issue: Health Issues
  • $30,000 Jan 20, 2015 Issue: Health Issues
  • $70,000 Oct 20, 2014 Issue: Health Issues
  • $30,000 Jul 21, 2014 Issue: Health Issues
  • $20,000 Jul 21, 2014 Issue: Health Issues Medicare/Medicaid
  • $20,000 Apr 14, 2014 Issue: Health Issues Medicare/Medicaid
  • $10,000 Jan 21, 2013 Issue: Medicare/Medicaid
  • $20,000 Oct 19, 2012 Issue: Medicare/Medicaid
  • $40,000 Jul 17, 2012 Issue: Medicare/Medicaid
  • $30,000 Apr 23, 2012 Issue: Medicare/Medicaid
  • $20,000 Jan 20, 2012 Issue: Trade (domestic/foreign)
  • $20,000 Oct 20, 2011 Issue: Medicare/Medicaid
  • $20,000 Jul 20, 2011 Issue: Medicare/Medicaid Trade (domestic/foreign)
  • $70,000 Apr 19, 2011 Issue: Health Issues
  • $20,000 Jan 20, 2011 Issue: Health Issues
  • $30,000 Oct 20, 2010 Issue: Health Issues Medicare/Medicaid
  • $90,000 Jul 22, 2010 Issue: Health Issues Medicare/Medicaid
  • $20,000 Apr 19, 2010 Issue: Medicare/Medicaid
  • $20,000 Oct 20, 2009 Issue: Health Issues Medicare/Medicaid
  • $20,000 Jul 14, 2009 Issue: Health Issues Medicare/Medicaid
  • $20,000 Apr 17, 2009 Issue: Health Issues Medicare/Medicaid
  • $20,000 Jan 15, 2009 Issue: Health Issues
  • $30,000 Oct 18, 2008 Issue: Medicare/Medicaid Health Issues
  • $30,000 Jul 21, 2008 Issue: Health Issues Medicare/Medicaid
  • $30,000 Apr 18, 2008 Issue: Medicare/Medicaid Health Issues
  • $60,000 Feb 13, 2008 Issue: Medicare/Medicaid Health Issues
  • $60,000 Aug 14, 2007 Issue: Health Issues Medicare/Medicaid
  • $40,000 Jul 31, 2007 Issue: Medicare/Medicaid
  • $60,000 Feb 13, 2007 Issue: Health Issues Medicare/Medicaid
  • $60,000 Aug 10, 2006 Issue: Medicare/Medicaid Health Issues
  • $60,000 Feb 17, 2006 Issue: Health Issues Medicare/Medicaid
Corporate Lobbying

ARAY Estimated quarterly lobbying spending

Revenue Breakdown

ARAY Revenue by Segment or Geography

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ARAY Income Statement
ARAY Balance Sheet
ARAY Cash Flow
U.S. Patents

New ARAY patent grants

  • Patent Title: Treatment planning software and corresponding user interface Jun. 12, 2018
  • Patent Title: Manipulation of a respiratory model via adjustment of parameters associated with model images Jun. 05, 2018
  • Patent Title: Image-based aperture verification system for multi-leaf collimator Apr. 24, 2018
  • Patent Title: Tracking a target structure contained within a target volume using an x-ray tomosynthesis imaging detector Apr. 17, 2018
  • Patent Title: Verification of leaf positions for multi-leaf collimator using multiple verification systems Apr. 17, 2018
  • Patent Title: Imaging methods for image-guided radiation treatment Feb. 20, 2018
  • Patent Title: Fiducial localization Feb. 06, 2018
  • Patent Title: Ambient light suppression using color space information to derive pixel-wise attenuation factors Sep. 26, 2017
  • Patent Title: Rotatable gantry radiation treatment system Jul. 11, 2017
  • Patent Title: Radiation treatment delivery system with translatable ring gantry Jun. 27, 2017
  • Patent Title: Frameless radiosurgery treatment system and method Feb. 21, 2017
  • Patent Title: Tracking of moving targets Oct. 25, 2016
  • Patent Title: Electromagnetically actuated multi-leaf collimator Sep. 13, 2016
  • Patent Title: Non-invasive method for using 2d angiographic images for radiosurgical target definition Aug. 30, 2016
  • Patent Title: Magnetron powered linear accelerator for interleaved multi-energy operation Aug. 23, 2016
  • Patent Title: Apparatus for generating multi-energy x-ray images and methods of using the same Aug. 16, 2016
  • Patent Title: Automatic calibration for device with controlled motion range Aug. 02, 2016
  • Patent Title: Gantry image guided radiotherapy system and related treatment delivery methods Jul. 12, 2016
  • Patent Title: Gantry image guided radiotherapy system and related treatment delivery methods May. 03, 2016
  • Patent Title: Target location by tracking of imaging device Mar. 22, 2016
  • Patent Title: Traveling wave linear accelerator based x-ray source using pulse width to modulate pulse-to-pulse dosage Feb. 09, 2016
  • Patent Title: Automatic correlation modeling of an internal target Feb. 02, 2016
  • Patent Title: Traveling wave linear accelerator based x-ray source using current to modulate pulse-to-pulse dosage Oct. 20, 2015
  • Patent Title: Systems and methods for real-time tumor tracking during radiation treatment using ultrasound imaging Aug. 18, 2015
  • Patent Title: Sequential optimizations for treatment planning Jun. 02, 2015
  • Patent Title: Interleaving multi-energy x-ray energy operation of a standing wave linear accelerator May. 12, 2015
  • Patent Title: Radiation treatment delivery system with outwardly movable radiation treatment head extending from ring gantry Mar. 24, 2015
  • Patent Title: Dynamic tracking of moving targets Mar. 24, 2015
  • Patent Title: Controlling x-ray imaging based on target motion Mar. 03, 2015
  • Patent Title: Systems and methods for cargo scanning and radiotherapy using a traveling wave linear accelerator based x-ray source using pulse width to modulate pulse-to-pulse dosage Jan. 27, 2015
  • Patent Title: Gantry image guided radiotherapy system and related treatment delivery methods Jan. 13, 2015
  • Patent Title: Gantry image guided radiotherapy system and related treatment delivery methods Dec. 23, 2014
  • Patent Title: Dynamic tracking of moving targets Oct. 28, 2014
  • Patent Title: Method and apparatus for selecting a tracking method to use in image guided treatment Sep. 30, 2014
  • Patent Title: Systems and methods for cargo scanning and radiotherapy using a traveling wave linear accelerator based x-ray source using current to modulate pulse-to-pulse dosage Sep. 16, 2014
  • Patent Title: Fiducial-less tracking of a volume of interest Sep. 09, 2014
  • Patent Title: Method and apparatus for treating a target's partial motion range Sep. 02, 2014
  • Patent Title: Collimator changer Sep. 02, 2014
  • Patent Title: Treatment planning in a virtual environment Aug. 26, 2014
  • Patent Title: Image registration for image-guided surgery Aug. 26, 2014
  • Patent Title: Imaging methods for image-guided radiation treatment Aug. 12, 2014
  • Patent Title: Interleaving multi-energy x-ray energy operation of a standing wave linear accelerator using electronic switches Jul. 22, 2014
  • Patent Title: Seven or more degrees of freedom robotic manipulator having at least one redundant joint Jun. 24, 2014
  • Patent Title: Robotic arm for patient positioning assembly Jun. 10, 2014
  • Patent Title: Adaptive x-ray control Apr. 08, 2014
  • Patent Title: Robotic arm for a radiation treatment system Feb. 18, 2014
  • Patent Title: Frameless radiosurgery treatment system and method Jan. 21, 2014
  • Patent Title: Target tracking for image-guided radiation treatment Oct. 15, 2013
  • Patent Title: Systems and methods for generating x-rays and neutrons using a single linear accelerator Sep. 24, 2013
  • Patent Title: Ring gantry radiation treatment delivery system with dynamically controllable inward extension of treatment head Sep. 17, 2013
Government Contracts

Federal grants, loans, and purchases

Government Contracts

Estimated quarterly amount awarded to ARAY from public contracts

ARAY News

Recent insights relating to ARAY

CNBC Recommendations

Recent picks made for ARAY stock on CNBC

Top ETF Holders

ETFs with the largest estimated holdings in ARAY

ARAY Analyst Ratings

ARAY Stock Forecasts
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ARAY Analyst Forecasts
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Frequently Asked Questions
  • Is $ARAY stock a Buy, Sell, or Hold?

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* Analyst consensus is not financial advice. Please see our data disclaimers .

ARAY Top Shareholders
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Frequently Asked Questions
  • Who owns $ARAY stock?

  • Who owns the most shares of $ARAY stock?

  • What funds own $ARAY stock?

* These are estimates based on data taken from SEC filings. There may be inaccuracies due to parsing errors, accidental double-counting, incorrect classification of indirectly owned shares, or any other number of issues.

ARAY Stock Smart Score

The Quiver Smart Score combines our data on Congress Trading, Lobbying, Insider Trading, CNBC Mentions and more to provide a comprehensive view of the strength of a stock's underlying data.

The Smart Score grades stocks on a scale of 1 (weakest) to 10 (strongest) based on the strength of the underlying data.
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About ARAY

Accuray Inc is a radiation oncology company that develops, manufactures, sells and supports precise, treatment solutions which set the standard of radiation therapy care with the objective of helping patients live lives. The company's technology, The CyberKnife, is used to treat multiple types of cancer and tumors throughout the body. The CyberKnife Systems automatically track, detect and correct for a tumor and patient movement in real-time during the procedure, enabling delivery of precise, high dose radiation with sub-millimetre accuracy while patients breathe normally, without manual user intervention.

  • Address Madison, WI
  • Market Cap 119.0 million
  • Employees 990
  • Industrial Classification Surgical & Medical Instruments & Apparatus
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