Tenable Holdings, Inc. (TENB)
TENB moved a median of 0.00% 30 minutes after news, and -0.06% by the close. How TENB actually reacts to news — the realized, point-in-time move the market made, measured across 478 labeled events over the last three years with zero look-ahead.
TENB’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.02% | 52% | 478 |
| 30-min | 0.00% | 49% | 478 |
| 60-min | +0.09% | 55% | 478 |
| to close | -0.06% | 48% | 474 |
| Middle 50% of TENB reactions | -0.47% to +0.86% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 478 |
Half of all Tenable Holdings, Inc. news events land between -0.47% and +0.86% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How TENB reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 20 | +1.39% | 75% | +1.19% |
| Analyst downgrades | 34 | +1.15% | 68% | +1.24% |
| Coverage initiations | 23 | +0.23% | 61% | +1.62% |
| Rating reiterations | 151 | -0.10% | 46% | +0.09% |
| Price-target raises | 29 | -0.35% | 31% | -0.44% |
| Price-target cuts | 44 | -0.02% | 48% | +0.40% |
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. See how TENB ranks against every other measured name →
That’s how TENB usually reacts — get an email when it moves on news →Email me when TENB moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to TENB's baseline. Nothing else.
Recent TENB events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Tenable to Announce Fiscal Third Quarter 2026 Earnings Results | Press release | GlobeNewswire | +0.46% | -4.99% | |
| Form 8-K Tenable Holdings, Inc. For: Oct 13 | SEC filing · Form 8-K | SEC EDGAR | +0.46% | -4.99% | |
| Tenable Announces Closing of New $400M Secured Revolving Credit Facility | Press release | GlobeNewswire | +0.46% | -4.99% | |
| Tenable Uses OpenAI GPT Cyber Models to Advance Agentic Security Review in the CyberAgents Exchange | Press release | GlobeNewswire | +0.92% | +0.18% | |
| Form 8-K Tenable Holdings, Inc. For: Oct 05 | SEC filing · Form 8-K | SEC EDGAR | +1.46% | +1.04% | |
| Tenable Appoints Industry Veteran Charlie Bell to Board of Directors | Press release | GlobeNewswire | +1.46% | +1.04% | |
| Form 8-K Tenable Holdings, Inc. For: Sep 10 | SEC filing · Form 8-K | SEC EDGAR | +2.08% | -0.60% | |
| Tenable Holdings, Inc. Announces Pricing of Upsized $725.0 Million Offering of Convertible Senior Notes | Press release | GlobeNewswire | +0.06% | -5.55% | |
| Tenable Holdings, Inc. Announces Proposed Private Placement of $650.0 Million of Convertible Senior Notes | Press release | GlobeNewswire | +0.65% | -1.17% | |
| Tenable Ranks #1 in Device Vulnerability and Exposure Management for Eighth Consecutive Year | Press release | GlobeNewswire | +0.06% | -5.55% | |
| Tenable to Bring Claude Mythos 5 into the Tenable One Exposure Management Platform | Press release | GlobeNewswire | +1.34% | -0.44% | |
| Tenable Uses OpenAI GPT Cyber Models to Help Defenders Inspect Community-Built AI Components | Press release | GlobeNewswire | -0.62% | +0.97% | |
| Tenable Joins White House-Led Project Watershed to Bolster U.S. Water Systems Cybersecurity | Press release | GlobeNewswire | +0.03% | +1.38% | |
| Tenable Holdings Set to Join S&P SmallCap 600 | Press release | PR Newswire | -0.62% | +3.49% | |
| Tenable Co-CEO and CFO to Present at Upcoming Investor Events | Press release | GlobeNewswire | +0.96% | — | |
| Form 10-Q Tenable Holdings, Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -1.06% | -2.04% | |
| Tenable Advances Exposure Management with Coverage Across Every Major AI Platform and Developer Tool | Press release | GlobeNewswire | +2.43% | +2.80% | |
| Tenable Launches Industry’s First Open-Source AI Agent Exchange to Advance Collective Cyber Innovation and Defense | Press release | GlobeNewswire | +2.43% | +2.80% | |
| Form 8-K Tenable Holdings, Inc. For: Jul 29 | SEC filing · Form 8-K | SEC EDGAR | +6.36% | +16.25% | |
| Tenable Announces Second Quarter 2026 Financial Results | Press release | GlobeNewswire | +6.36% | +16.25% | |
| Tenable Delivers the Industry’s First Always-On Agentic Fleet for Exposure Management | Press release | GlobeNewswire | -1.17% | -3.27% | |
| Tenable Joins Cisco’s SolutionsPlus Program as an Exposure Management Partner for Vulnerability Management Customers | Press release | GlobeNewswire | -0.61% | -5.10% | |
| Tenable Expands Exposure Management Platform to Contextualize and Prioritize Application Security Risk | Press release | GlobeNewswire | +1.12% | -6.58% | |
| Tenable to Announce Fiscal Second Quarter 2026 Earnings Results | Press release | GlobeNewswire | +1.12% | -6.58% | |
| Tenable Named as the Current Company to Beat for AI-Powered Exposure Assessment in a June 2026 Gartner® Report | Press release | GlobeNewswire | -2.06% | +0.61% | |
| Tenable Achieves FedRAMP High and Impact Level 5 Authorization | Press release | GlobeNewswire | +0.75% | +9.73% | |
| Tenable Joins OpenAI Daybreak Cyber Partner Program | Press release | GlobeNewswire | -0.57% | +0.92% | |
| Tenable Sharpens Exposure Management Risk Prioritization with Continuous Security Control Validation | Press release | GlobeNewswire | -1.08% | -2.75% | |
| Tenable Unveils AI-Powered Cloud Detection and Response Capabilities | Press release | GlobeNewswire | -0.33% | -1.33% | |
| Form 8-K Tenable Holdings, Inc. For: May 21 | SEC filing · Form 8-K | SEC EDGAR | -0.28% | +0.63% | |
| Tenable Announces Strategic Integration with the Claude Compliance API to Provide Unprecedented Visibility and Governance for Enterprise AI Usage | Press release | GlobeNewswire | +0.28% | +1.04% | |
| Tenable Launches Open Partner Exchange Network (OPEN) to Connect Security Tools, Data and AI-Driven Workflows Across the Enterprise | Press release | GlobeNewswire | -0.32% | +1.25% | |
| Tenable One Powers AI-Driven Cyber Risk Decisions with the Release of the Open Connector | Press release | GlobeNewswire | -0.32% | +1.25% | |
| Tenable Hexa AI Turns Exposure Discovery into Automated Remediation at Machine Speed | Press release | GlobeNewswire | -0.14% | +0.79% | |
| Tenable Partners with Anthropic for AI-Driven Exposure Management | Press release | GlobeNewswire | -0.14% | +0.79% | |
| Form 8-K Tenable Holdings, Inc. For: May 13 | SEC filing · Form 8-K | SEC EDGAR | +1.21% | -1.40% | |
| Tenable Announces 2026 Global Partner Award Winners | Press release | GlobeNewswire | -1.71% | -1.78% | |
| Tenable Co-CEOs and CFO to Present at Upcoming Investor Events | Press release | GlobeNewswire | -1.71% | -1.78% | |
| Form 10-Q Tenable Holdings, Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -2.77% | -2.35% | |
| Form 8-K Tenable Holdings, Inc. For: Apr 29 | SEC filing · Form 8-K | SEC EDGAR | +6.92% | +4.45% | |
| Tenable Announces First Quarter 2026 Financial Results | Press release | GlobeNewswire | +6.92% | +4.45% | |
| Tenable Accelerates Exposure Management Adoption with New Flexible Pricing for the AI Era | Press release | GlobeNewswire | +1.01% | -1.26% | |
| Tenable Expands Exposure Management with Instant OT Discovery to Secure Cyber-Physical Systems | Press release | GlobeNewswire | +4.23% | +4.07% | |
| Tenable to Announce Fiscal First Quarter 2026 Earnings Results | Press release | GlobeNewswire | +4.23% | +4.07% | |
| Form ARS Tenable Holdings, Inc. For: Apr 02 | SEC filing · Form ARS | SEC EDGAR | +1.35% | +4.06% | |
| Form DEF 14A Tenable Holdings, Inc. For: Apr 02 | SEC filing · Form DEF | SEC EDGAR | +1.35% | +4.06% | |
| Form DEFA14A Tenable Holdings, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | +1.35% | +4.06% | |
| Introducing Tenable Hexa AI: The Agentic Engine That Supercharges Security Productivity and Accelerates Risk Reduction | Press release | GlobeNewswire | -0.80% | +1.23% | |
| Tenable to Host Investor Day on May 21, 2026 | Press release | GlobeNewswire | -0.15% | -1.95% | |
| Tenable Appoints Dino DiMarino as Chief Revenue Officer | Press release | GlobeNewswire | -0.25% | +0.05% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the TENB section they belong to.
Where else TENB is measured.
TENB earnings → · Analyst actions → · SEC filings →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Harmonic Inc. (HLIT) | 487 | 0.00% | 48% |
| Lumentum Holdings Inc. (LITE) | 485 | +0.00% | 50% |
| SVMK INC COMMON (SVMK) | 477 | +0.08% | 53% |
| Littelfuse, Inc. (LFUS) | 475 | -0.01% | 48% |
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.
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How the numbers are made.
How is Tenable Holdings, Inc.'s median reaction calculated?
Every labeled TENB 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 478 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. 49% of TENB'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 TENB'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.