Accuray Incorporated (ARAY)
ARAY moved a median of 0.00% 30 minutes after news, and +0.37% by the close. How ARAY actually reacts to news — the realized, point-in-time move the market made, measured across 288 labeled events over the last three years with zero look-ahead.
ARAY’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 50% | 287 |
| 30-min | 0.00% | 51% | 287 |
| 60-min | 0.00% | 50% | 287 |
| to close | +0.37% | 52% | 286 |
| Middle 50% of ARAY reactions | -1.44% to +1.15% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 288 |
Half of all Accuray Incorporated news events land between -1.44% and +1.15% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How ARAY reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst downgrades | 14 | -0.20% | 36% | -3.46% |
| Rating reiterations | 12 | +0.01% | 50% | +1.85% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. 4 further classes were observed with fewer than 10 measured events and are not published. See how ARAY ranks against every other measured name →
That’s how ARAY usually reacts — get an email when it moves on news →Email me when ARAY moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to ARAY's baseline. Nothing else.
Recent ARAY events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 8-K ACCURAY INC For: Oct 08 | SEC filing · Form 8-K | SEC EDGAR | -0.43% | -5.76% | |
| Accuray Announces Stockholder Approval of Key Financing-Related Proposals and Appointment of New Independent Director | Press release | PR Newswire | +2.60% | -3.10% | |
| Form 8-K ACCURAY INC For: Oct 05 | SEC filing · Form 8-K | SEC EDGAR | +2.60% | -3.10% | |
| Accuray and Samsung NeuroLogica Advance Volumetric Imaging Collaboration for the Accuray CyberKnife® Platform | Press release | PR Newswire | +3.10% | +0.07% | |
| Form DEFA14A ACCURAY INC | SEC filing · Form DEFA14A | SEC EDGAR | +0.21% | +3.00% | |
| Form EFFECT ACCURAY INC | SEC filing · Form EFFECT | SEC EDGAR | +1.84% | -2.00% | |
| Accuray and RaySearch Agree to Collaboration Integrating RayStation Software with Accuray Platforms to Accelerate Accuray's Online Adaptive Capabilities | Press release | PR Newswire | +5.25% | -1.92% | |
| Form S-3/A ACCURAY INC | SEC filing · Form S-3 | SEC EDGAR | -0.51% | -5.34% | |
| Form 10-K ACCURAY INC For: Jun 30 | SEC filing · Form 10-K | SEC EDGAR | +1.61% | +4.94% | |
| Form DEF 14A ACCURAY INC For: Oct 06 | SEC filing · Form DEF | SEC EDGAR | -5.21% | -7.60% | |
| Form S-3/A ACCURAY INC | SEC filing · Form S-3 | SEC EDGAR | +3.63% | -4.63% | |
| Accuray Reports Fourth Quarter and Fiscal 2026 Financial Results | Press release | PR Newswire | -1.19% | -4.94% | |
| Form 8-K ACCURAY INC For: Aug 19 | SEC filing · Form 8-K | SEC EDGAR | -1.19% | -4.94% | |
| Accuray Advances Strategic Priorities Through Key Executive Leadership Appointments | Press release | PR Newswire | -1.26% | -3.27% | |
| Form PRE 14A ACCURAY INC For: Oct 06 | SEC filing · Form PRE | SEC EDGAR | -1.26% | -3.27% | |
| Form 8-K ACCURAY INC For: Aug 04 | SEC filing · Form 8-K | SEC EDGAR | +0.39% | -6.92% | |
| Accuray to Report Fourth Quarter Fiscal 2026 Financial Results on August 19, 2026 | Press release | PR Newswire | -0.11% | +2.50% | |
| Form S-3 ACCURAY INC | SEC filing · Form S-3 | SEC EDGAR | +6.68% | +0.68% | |
| Accuray Announces Plan Involving Financial Strengthening, Strategic Partnerships, Technology Rollouts, and Operational Initiatives to Drive Long-Term Value Creation | Press release | PR Newswire | +4.17% | +14.83% | |
| Form 8-K ACCURAY INC For: Jul 29 | SEC filing · Form 8-K | SEC EDGAR | +4.17% | +14.83% | |
| Form 8-K ACCURAY INC For: Jun 01 | SEC filing · Form 8-K | SEC EDGAR | -1.23% | -7.34% | |
| Accuray Incorporated Reports Inducement Award Under NASDAQ Listing Rules | Press release | PR Newswire | -3.08% | +2.26% | |
| Form S-8 ACCURAY INC | SEC filing · Form S-8 | SEC EDGAR | -3.08% | +2.26% | |
| Form SD ACCURAY INC | SEC filing · Form SD | SEC EDGAR | -3.08% | +2.26% | |
| Accuray and the University of Wisconsin-Madison Announce Master Research Agreement to Improve Personalized Care for Patients with Cancer | Press release | PR Newswire | +1.45% | +14.78% | |
| Accuray Reports Fiscal 2026 Third Quarter Financial Results | Press release | PR Newswire | +1.57% | -17.62% | |
| Form 10-Q ACCURAY INC For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +1.57% | -17.62% | |
| Form 8-K ACCURAY INC For: May 06 | SEC filing · Form 8-K | SEC EDGAR | +1.57% | -17.62% | |
| Form 8-K ACCURAY INC For: Apr 26 | SEC filing · Form 8-K | SEC EDGAR | -1.30% | -4.77% | |
| Accuray to Report Third Quarter Fiscal 2026 Financial Results on May 6, 2026 | Press release | PR Newswire | -1.60% | -2.20% | |
| Form 8-K ACCURAY INC For: Apr 01 | SEC filing · Form 8-K | SEC EDGAR | -0.63% | -1.09% | |
| Accuray Appoints Paul Miele as Senior Vice President and Chief Commercial Officer | Press release | PR Newswire | -1.02% | +0.10% | |
| Form 8-K ACCURAY INC For: Apr 06 | SEC filing · Form 8-K | SEC EDGAR | -1.02% | +0.10% | |
| Form 8-K ACCURAY INC For: Mar 13 | SEC filing · Form 8-K | SEC EDGAR | -4.28% | -11.67% | |
| Form EFFECT ACCURAY INC | SEC filing · Form EFFECT | SEC EDGAR | -0.33% | -1.80% | |
| Form 10-K/A ACCURAY INC For: Jun 30 | SEC filing · Form 10-K | SEC EDGAR | -0.94% | -8.46% | |
| Form 10-Q ACCURAY INC For: Dec 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.94% | -8.46% | |
| Form 10-Q/A ACCURAY INC For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.94% | -8.46% | |
| Form 8-K ACCURAY INC For: Feb 17 | SEC filing · Form 8-K | SEC EDGAR | -0.94% | -8.46% | |
| Form S-3 ACCURAY INC | SEC filing · Form S-3 | SEC EDGAR | +0.98% | +4.80% | |
| Form 8-K ACCURAY INC For: Feb 08 | SEC filing · Form 8-K | SEC EDGAR | +1.88% | -2.65% | |
| Form NT 10-Q ACCURAY INC For: Dec 31 | SEC filing · Form NT | SEC EDGAR | +1.88% | -2.65% | |
| Form 8-K ACCURAY INC For: Feb 02 | SEC filing · Form 8-K | SEC EDGAR | -3.02% | -8.25% | |
| Accuray Reports Fiscal 2026 Second Quarter Financial Results | Press release | PR Newswire | +0.29% | -7.68% | |
| Form 8-K ACCURAY INC For: Feb 04 | SEC filing · Form 8-K | SEC EDGAR | +0.29% | -7.68% | |
| Accuray to Report Second Quarter Fiscal 2026 Financial Results on February 4, 2026 | Press release | PR Newswire | +2.43% | +1.21% | |
| Form 8-K ACCURAY INC For: Jan 15 | SEC filing · Form 8-K | SEC EDGAR | -2.95% | -4.73% | |
| Form 8-K ACCURAY INC For: Dec 27 | SEC filing · Form 8-K | SEC EDGAR | -0.24% | +1.05% | |
| Form 8-K ACCURAY INC For: Dec 12 | SEC filing · Form 8-K | SEC EDGAR | +1.94% | -0.97% | |
| Accuray announces first phase of comprehensive strategic, operational, and organizational transformation plan; company expects first phase to improve annualized operating profitability by approximately $25 million and set the stage for renewed growth | Press release | PR Newswire | +1.94% | -0.97% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the ARAY section they belong to.
Where else ARAY is measured.
ARAY earnings → · Analyst actions → · SEC filings →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| CRISPR Therapeutics AG - Common Shares (CRSP) | 291 | +0.10% | 53% |
| Seres Therapeutics, Inc. (MCRB) | 290 | -0.23% | 46% |
| Chemed Corp (CHE) | 288 | +0.02% | 53% |
| Fate Therapeutics, Inc. (FATE) | 287 | -0.76% | 39% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Healthcare names, measured the same way →
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How the numbers are made.
How is Accuray Incorporated's median reaction calculated?
Every labeled ARAY news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 288 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 51% of ARAY's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does ARAY's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.