Harmonic Inc. (HLIT)
HLIT moved a median of 0.00% 30 minutes after news, and 0.00% by the close. How HLIT actually reacts to news — the realized, point-in-time move the market made, measured across 487 labeled events over the last three years with zero look-ahead.
HLIT’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 49% | 486 |
| 30-min | 0.00% | 48% | 487 |
| 60-min | -0.10% | 46% | 487 |
| to close | 0.00% | 50% | 483 |
| Middle 50% of HLIT reactions | -0.72% to +0.79% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 487 |
Half of all Harmonic Inc. news events land between -0.72% and +0.79% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How HLIT reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 10 | -0.93% | 20% | -0.44% |
| Analyst downgrades | 18 | +0.75% | 61% | +1.51% |
| Rating reiterations | 80 | -0.03% | 48% | -0.01% |
| Price-target cuts | 13 | +1.57% | 77% | +1.55% |
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. 2 further classes were observed with fewer than 10 measured events and are not published. See how HLIT ranks against every other measured name →
That’s how HLIT usually reacts — get an email when it moves on news →Email me when HLIT moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to HLIT's baseline. Nothing else.
Recent HLIT events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Cablenet Selects Harmonic's cOS Broadband Platform to Deliver Multi-Gigabit Speeds in Cyprus | Press release | PR Newswire | -0.91% | -4.47% | |
| Harmonic Showcases Vendor-Agnostic Intelligence and Versatile Fiber Portfolio at Network X 2026 | Press release | PR Newswire | +0.00% | -0.09% | |
| Harmonic Launches Recon Product Family Developed in Partnership with Comcast | Press release | PR Newswire | +0.09% | -0.75% | |
| Lightcurve Teams Up with Harmonic to Deliver Multi-Gigabit Broadband Services to MDUs over Coax | Press release | PR Newswire | -0.18% | +0.32% | |
| Harmonic Leads the New Era of Broadband Connectivity at SCTE TechExpo 2026 | Press release | PR Newswire | +2.85% | +0.34% | |
| Harmonic Unveils cOS SensAI Intelligence Fabric for Broadband Operations | Press release | PR Newswire | -0.46% | +0.84% | |
| Harmonic to Host Investor Day in New York on September 15, 2026 | Press release | PR Newswire | -0.49% | -2.67% | |
| Form 10-Q HARMONIC INC. For: Jul 03 | SEC filing · Form 10-Q | SEC EDGAR | -0.11% | -0.96% | |
| Harmonic to Participate in Upcoming Investor Conferences | Press release | PR Newswire | +3.37% | +5.62% | |
| Form 8-K HARMONIC INC. For: Aug 12 | SEC filing · Form 8-K | SEC EDGAR | +2.19% | -9.17% | |
| Form NT 10-Q HARMONIC INC. For: Jul 03 | SEC filing · Form NT | SEC EDGAR | +2.19% | -9.17% | |
| Harmonic Announces Second Quarter 2026 Results | Press release | PR Newswire | +2.19% | -9.17% | |
| Harmonic Announces Reporting Date for Second Quarter 2026 Results | Press release | PR Newswire | -0.18% | +1.47% | |
| Bluepeak Taps Harmonic to Speed Up Fiber Rollout and Expand into MDUs | Press release | PR Newswire | -0.49% | +1.14% | |
| Form 8-K HARMONIC INC. For: Jun 16 | SEC filing · Form 8-K | SEC EDGAR | -0.53% | -2.11% | |
| Harmonic Completes Divestiture of Video Business to MediaKind | Press release | PR Newswire | -0.53% | -2.11% | |
| Form 8-K HARMONIC INC. For: Jun 08 | SEC filing · Form 8-K | SEC EDGAR | -0.87% | -5.23% | |
| Form 8-K HARMONIC INC. For: Jun 04 | SEC filing · Form 8-K | SEC EDGAR | -2.39% | +2.25% | |
| Form SD HARMONIC INC. | SEC filing · Form SD | SEC EDGAR | -1.86% | -9.14% | |
| Swiss Broadcaster Canal Alpha Streamlines Playout to Delivery with Harmonic | Press release | PR Newswire | +0.17% | -0.64% | |
| DNA Finland Extends Fiber-Grade Connectivity to Lower-Density MDUs with Harmonic | Press release | PR Newswire | -1.94% | -0.41% | |
| Form DEFR14A HARMONIC INC. | SEC filing · Form DEFR14A | SEC EDGAR | +0.00% | -1.27% | |
| Form 10-Q HARMONIC INC. For: Apr 03 | SEC filing · Form 10-Q | SEC EDGAR | -4.54% | -2.41% | |
| Inter Venezuela Taps Harmonic for PON-Based Mobile Backhaul Service to Support 5G Growth | Press release | PR Newswire | -1.61% | +2.22% | |
| Form 8-K HARMONIC INC. For: May 06 | SEC filing · Form 8-K | SEC EDGAR | +3.19% | -10.26% | |
| Harmonic Announces First Quarter 2026 Results | Press release | PR Newswire | +3.19% | -10.26% | |
| Harmonic Defines a New Era of Broadband Connectivity at ANGA COM 2026 | Press release | PR Newswire | -0.17% | +2.44% | |
| Harmonic to Participate in the 21st Annual Needham Technology, Media & Consumer Conference and the Rosenblatt 6th Annual Virtual Technology Summit | Press release | PR Newswire | -0.17% | +2.44% | |
| Harmonic to Unveil Game-Changing Innovations at Fiber Connect 2026 | Press release | PR Newswire | -0.10% | +9.48% | |
| Form ARS HARMONIC INC. For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.00% | -0.66% | |
| Form DEF 14A HARMONIC INC. For: Jun 04 | SEC filing · Form DEF | SEC EDGAR | +0.00% | -0.66% | |
| Form DEFA14A HARMONIC INC. | SEC filing · Form DEFA14A | SEC EDGAR | +0.00% | -0.66% | |
| ACI Communications Joins Harmonic's Growing Multi-Vendor Connected Amplifier Ecosystem | Press release | PR Web | +0.10% | -1.42% | |
| Harmonic Announces Reporting Date for First Quarter 2026 Results | Press release | PR Newswire | +0.83% | -0.09% | |
| Harmonic Enables DIRECTV to Reimagine Nationwide DTH Service | Press release | PR Newswire | +0.34% | +3.54% | |
| CentralCast Delivers Breakthrough Efficiencies to Public Broadcasting Stations with Harmonic | Press release | PR Newswire | -0.61% | +0.92% | |
| Harmonic Introduces Breakthrough AI Orchestration Service for Live Video Workflows | Press release | PR Newswire | -0.10% | -1.81% | |
| Harmonic Extends Hybrid Streaming Leadership with AI and Cloud Innovations | Press release | PR Newswire | +1.13% | +1.25% | |
| Harmonic to Unveil Breakthrough Fiber Innovations at the FTTH Conference 2026 | Press release | PR Newswire | -0.05% | +1.02% | |
| Form 8-K HARMONIC INC. For: Mar 31 | SEC filing · Form 8-K | SEC EDGAR | +0.76% | +1.20% | |
| TDF Expands Broadcast Channel Lineup with Harmonic | Press release | PR Newswire | +0.00% | -0.77% | |
| KBRO Leverages Harmonic's Fiber-on-Demand Solution for Network Upgrades | Press release | PR Newswire | -0.64% | -5.85% | |
| Harmonic Delivers Winning Live Sports Streaming Innovations | Press release | PR Newswire | +0.96% | -0.11% | |
| Form 8-K HARMONIC INC. For: Mar 20 | SEC filing · Form 8-K | SEC EDGAR | +1.75% | +1.75% | |
| Harmonic Enhances XOS Advanced Media Processor to Streamline Next-Generation Broadcast Distribution | Press release | PR Newswire | +0.73% | -1.99% | |
| Harmonic Redefines the Economics of Video Playout with New Spectrum X Plus Media Server | Press release | PR Newswire | -0.55% | +2.29% | |
| Form 8-K HARMONIC INC. For: Mar 11 | SEC filing · Form 8-K | SEC EDGAR | -0.55% | +2.29% | |
| Harmonic Accelerates Streaming and Broadcast Transformations at the 2026 NAB Show | Press release | PR Newswire | -0.99% | -1.59% | |
| Vyve Broadband Selects Harmonic for Network Modernization | Press release | PR Newswire | -1.93% | -4.04% | |
| Alcom Elevates Headend Video Service with Harmonic to Drive Growth | Press release | PR Newswire | +0.29% | -1.24% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the HLIT section they belong to.
Where else HLIT is measured.
HLIT earnings → · Analyst actions → · SEC filings →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Upwork Inc. (UPWK) | 491 | -0.10% | 46% |
| GreenSky, Inc. (GSKY) | 488 | +0.06% | 51% |
| Lumentum Holdings Inc. (LITE) | 485 | +0.00% | 50% |
| Tenable Holdings, Inc. (TENB) | 478 | 0.00% | 49% |
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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Every name we’ve measured, in one place.
How the numbers are made.
How is Harmonic Inc.'s median reaction calculated?
Every labeled HLIT 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 487 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. 48% of HLIT'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 HLIT'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.