SK hynix Inc. - American Depositary Shares (SKHY)
SKHY moved a median of -0.02% 30 minutes after news, and -0.60% by the close. How SKHY actually reacts to news — the realized, point-in-time move the market made, measured across 68 labeled events over the last three years with zero look-ahead.
SKHY’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.15% | 58% | 59 |
| 30-min | -0.02% | 49% | 59 |
| 60-min | -0.29% | 36% | 59 |
| to close | -0.60% | 33% | 58 |
| Middle 50% of SKHY reactions | -0.66% to +1.41% |
|---|---|
| Median reaction (30-min) | -0.02% |
| Measured reactions | 68 |
Half of all SK hynix Inc. - American Depositary Shares news events land between -0.66% and +1.41% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when SKHY moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to SKHY's baseline. Nothing else.
Recent SKHY events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 6-K SK hynix Inc. For: Oct 14 | SEC filing · Form 6-K | SEC EDGAR | +0.64% | -2.01% | |
| Form 6-K SK hynix Inc. For: Sep 18 | SEC filing · Form 6-K | SEC EDGAR | +0.38% | +1.35% | |
| Form 6-K SK hynix Inc. For: Sep 09 | SEC filing · Form 6-K | SEC EDGAR | +1.14% | +5.54% | |
| Defiance Launches PRAM, the First U.S.-Listed ETF to Combine Memory and Photonics* | Press release | GlobeNewswire | +0.17% | -1.36% | |
| SK hynix Holds Groundbreaking Ceremony for HBM Production Base in Indiana, "Beginning a New Future for US-Korea AI" | Press release | PR Newswire | -0.24% | +0.32% | |
| Zoomex Launches TradFi Zone Upgrade With 80% Fee Discount Early Bird Campaign | Press release | GlobeNewswire | -0.26% | +0.49% | |
| Leon Stok of IBM Reelected Silicon Integration Initiative Board Chair | Press release | Business Wire | -0.15% | -1.91% | |
| HTX Releases July Performance Report: TradFi Zone Evolves, Reaching Record Daily Trading Volume | Press release | Canada Newswire | -1.92% | +2.45% | |
| MEXC's July Highlights: Stock Futures Volume Up 111%, Tokenized Equities Take 62% of TradFi Spot | Press release | GlobeNewswire | -1.92% | +2.45% | |
| SK hynix Invests 54 Trillion Won in Yongin Y2 and Cheongju M17 to Secure Mid-to-Long-Term Production Base for AI Memory Demand | Press release | PR Newswire | -2.16% | -3.77% | |
| KraneShares' China Semiconductor ETF KSTR Becomes The Only U.S.-Listed ETF With Direct Ownership of CXMT | Press release | GlobeNewswire | +1.42% | +2.80% | |
| SK hynix Unveils First HBF Standard Specifications with Sandisk, Presenting AI Memory Solutions at 'FMS 2026' | Press release | PR Newswire | +1.42% | +2.80% | |
| Montage Technology Announces Industry-First Trial Production of CXL 3.2 MXC Chip | Press release | PR Newswire | +1.45% | -10.04% | |
| Montage Technology Announces Industry-First Trial Production of CXL 3.2 MXC Chip | Press release | PR Newswire | +1.45% | -10.04% | |
| Form 6-K SK hynix Inc. For: Jul 29 | SEC filing · Form 6-K | SEC EDGAR | +2.73% | -2.37% | |
| Korean AI Startup AiBiz Cuts Semiconductor Defects with GPU-Free AI, Powered by AMD EPYC CPUs | Press release | Business Wire | +0.05% | -0.27% | |
| SK hynix Announces 2Q26 Financial Results | Press release | PR Newswire | +2.73% | -2.37% | |
| T-REX Announces Launch of 2X Inverse DRAM ETF (RAMZ) | Press release | Business Wire | -0.36% | -4.22% | |
| Tradr Launches Two Leveraged ETFs on SK hynix | Press release | PR Newswire | -0.36% | -4.22% | |
| China Memory Giant CXMT Becomes a Top Holding in Tema Memory ETF (DISK) | Press release | Business Wire | +1.71% | -0.42% | |
| Tradr's Leveraged ETFs on SK hynix Set to Open Trading Tuesday | Press release | PR Newswire | -0.55% | -2.78% | |
| Etched raises $300M at a $10.3B Valuation to Scale Production of Frontier Scale Inference Hardware | Press release | GlobeNewswire | -0.77% | -1.97% | |
| STARTRADER Launches SKHY as SK Hynix Makes Its US Market Debut, Giving Clients Timely Access to a Key AI Memory Name | Press release | PR Newswire | +1.13% | -0.59% | |
| STARTRADER Launches SKHY as SK Hynix Makes US Market Debut | Press release | GlobeNewswire | +1.13% | -0.59% | |
| T-REX to Launch First-Ever U.S. 2X Inverse DRAM ETF (RAMZ) on July 28 | Press release | Business Wire | -0.24% | -1.81% | |
| Form 6-K SK hynix Inc. For: Jul 22 | SEC filing · Form 6-K | SEC EDGAR | +1.45% | +1.75% | |
| AI Labs Launches AI-Powered Investment Intelligence Platform to Bring Advanced Technology Stock Analytics to Retail Investors | Press release | GlobeNewswire | -0.21% | -3.51% | |
| Direxion Launches SKHL, 2X Daily Exposure to SK hynix | Press release | PR Newswire | -2.66% | -3.04% | |
| Form 6-K SK hynix Inc. For: Jul 15 | SEC filing · Form 6-K | SEC EDGAR | -2.66% | -3.04% | |
| Corgi SK Hynix 2x Daily ETF (SK) Is Now Trading: The Lowest-Cost 2x Long SK Hynix ETF at a 0.50% Expense Ratio | Press release | PR Newswire | +0.28% | +15.28% | |
| Themes ETFs Goes Live on SK Hynix as One of AI's Marquee IPOs Hits the Tape | Press release | PR Newswire | +0.28% | +15.28% | |
| Form EFFECT SK hynix Inc. | SEC filing · Form EFFECT | SEC EDGAR | — | — | |
| SK Hynix ETFs - 2x Long (SKHX) & 1x Short (SKHZ) from Leverage Shares by Themes Arrive as ADRs Begin Trading | Press release | GlobeNewswire | — | — | |
| Form 8-A12B SK hynix Inc. | SEC filing · Form 8-A12B | SEC EDGAR | — | — | |
| Form CERT SK hynix Inc. | SEC filing · Form CERT | SEC EDGAR | — | — | |
| Corgi to List SK: A 2x Long SK Hynix ETF Launching July 13 at a 0.50% Expense Ratio, One of the Lowest Among Single-Stock 2x ETFs | Press release | PR Newswire | — | — | |
| Direxion Readies Launch of SKHL, 2X Daily Exposure to SK hynix | Press release | PR Newswire | — | — |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the SKHY section they belong to.
Where else SKHY is measured.
SKHY earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is SK hynix Inc. - American Depositary Shares's median reaction calculated?
Every labeled SKHY 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 68 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 SKHY'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 SKHY'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.