Sinovac Biotech, Ltd. - Ordinary Shares (Antigua/Barbudo) (SVA)
SVA moved a median of 0.00% 30 minutes after news, and 0.00% by the close. How SVA actually reacts to news — the realized, point-in-time move the market made, measured across 814 labeled events over its full measured history with zero look-ahead.
SVA’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 31% | 402 |
| 30-min | 0.00% | 46% | 429 |
| 60-min | 0.00% | 50% | 430 |
| to close | 0.00% | 49% | 434 |
| Middle 50% of SVA reactions | -0.54% to +0.50% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 814 |
Half of all Sinovac Biotech, Ltd. - Ordinary Shares (Antigua/Barbudo) news events land between -0.54% and +0.50% 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 SVA moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to SVA's baseline. Nothing else.
Recent SVA events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form 6-K SINOVAC BIOTECH LTD For: Aug 17 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| SINOVAC Reports Unaudited First Half of 2026 Financial Results | Press release | Business Wire | — | — | |
| Form 6-K SINOVAC BIOTECH LTD For: Jul 15 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| SINOVAC Announces Extension of Deadline to Submit Payment Instructions for Previously Declared Special Cash Dividend | Press release | Business Wire | — | — | |
| Form 6-K SINOVAC BIOTECH LTD For: Jun 15 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| SINOVAC Regained Compliance With the Nasdaq Global Market’s Listing Requirements | Press release | Business Wire | — | — | |
| Form 20-F SINOVAC BIOTECH LTD For: Dec 31 | SEC filing · Form 20-F | SEC EDGAR | — | — | |
| Form 6-K SINOVAC BIOTECH LTD For: Jun 05 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| SINOVAC Reports Unaudited and Unreviewed Second Half of 2025 Financial Results and Files 2025 Annual Report on Form 20-F | Press release | Business Wire | — | — | |
| Form 6-K SINOVAC BIOTECH LTD For: May 29 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| SINOVAC Receives Nasdaq Notification Regarding Late Filing of 2025 Annual Report | Press release | Business Wire | — | — | |
| Form 6-K SINOVAC BIOTECH LTD For: May 21 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| SINOVAC Announces Extension of Deadline to Submit Payment Instructions for Previously Declared Special Cash Dividend | Press release | Business Wire | — | — | |
| Form 6-K SINOVAC BIOTECH LTD For: May 08 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| SINOVAC Reports Unaudited First Half of 2025 Financial Results | Press release | Business Wire | — | — | |
| Form 6-K SINOVAC BIOTECH LTD For: May 07 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| Form 20-F SINOVAC BIOTECH LTD For: Dec 31 | SEC filing · Form 20-F | SEC EDGAR | — | — | |
| Form NT 20-F SINOVAC BIOTECH LTD For: Dec 31 | SEC filing · Form NT | SEC EDGAR | — | — | |
| SINOVAC Files Annual Report on Form 20-F for the Fiscal Year 2024 | Press release | Business Wire | — | — | |
| Form 6-K SINOVAC BIOTECH LTD For: Aug 21 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| Form 6-K SINOVAC BIOTECH LTD For: Dec 17 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| Form 6-K SINOVAC BIOTECH LTD For: Jan 04 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| Form 6-K SINOVAC BIOTECH LTD For: Jan 22 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| Form 6-K SINOVAC BIOTECH LTD For: Nov 05 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| Form 6-K SINOVAC BIOTECH LTD For: Nov 18 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| SINOVAC Announces Nasdaq Hearings Panel Grants Continued Listing | Press release | Business Wire | — | — | |
| SINOVAC Provides Update on Antigua High Court Order and Auditor Engagement | Press release | Business Wire | — | — | |
| Sinovac Receives Nasdaq Notification Regarding Late Filing of 2025 Half-Year Report | Press release | Business Wire | — | — | |
| Sinovac: Antigua Court Makes Interim Order Giving Board Control of the Company until the Trial of the Disputed 2025 Shareholder Meeting | Press release | Business Wire | — | — | |
| SINOVAC Announces Receipt of Nasdaq Notice of Delisting and Intention to Appeal | Press release | Business Wire | — | — | |
| Independent Sinovac Shareholders Express Strong Support for Immediate Dividend Payment | Press release | PR Newswire | — | — | |
| SINOVAC Announces Appointment of Independent Auditor | Press release | Business Wire | — | — | |
| Form 6-K SINOVAC BIOTECH LTD For: Jul 10 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| SINOVAC Board Sets the Record Straight on July 8 Special Meeting of Shareholders | Press release | Business Wire | — | — | |
| Form 6-K SINOVAC BIOTECH LTD For: Jul 09 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| Newly Elected Directors of Sinovac Hold the First Board Meeting | Press release | Business Wire | — | — | |
| Appeal Decision By Eastern Caribbean Supreme Court Supports Right of Prime Success and Vivo Capital to Participate in Critical Sinovac Biotech Shareholder Vote | Press release | Business Wire | — | — | |
| SINOVAC Board of Directors Announces Adjournment of Special Meeting of Shareholders Until Appropriate Court Can Make a Final Decision on the Validity of the PIPE Shares | Press release | Business Wire | — | — | |
| SINOVAC Board of Directors Provides Update on Status of US$55.00 Special Cash Dividend Payment | Press release | Business Wire | — | — | |
| SINOVAC Board of Directors Strongly Denounces Deceptive and Illegal Claims by SAIF and the Imposter Former Board | Press release | Business Wire | — | — | |
| Sinovac Shareholders Vote to Remove Current Directors and Elect SAIF Partners Nominees to Board at Special Meeting | Press release | Business Wire | — | — | |
| Form 6-K SINOVAC BIOTECH LTD For: Jul 08 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| Federal Court in Massachusetts Denies Vivo Capital’s Petition for Relief on SINOVAC | Press release | Business Wire | — | — | |
| Final Reminder for SINOVAC Shareholders to Vote the WHITE Proxy Card “AGAINST” Misguided Proposals 1 and 2 | Press release | Business Wire | — | — | |
| Leading Independent Proxy Advisory Firm ISS Joins Glass Lewis in Recommending Shareholders Vote to Keep the Current SINOVAC Board in Place | Press release | Business Wire | — | — | |
| Form 6-K SINOVAC BIOTECH LTD For: Jul 02 | SEC filing · Form 6-K | SEC EDGAR | — | — | |
| Leading Independent Proxy Advisory Firm Glass Lewis Recommends SINOVAC Shareholders Vote to Keep the Current Board in Place | Press release | Business Wire | — | — | |
| SAIF Partners: Now is Your Last Chance to Vote for Board Change at Sinovac | Press release | Business Wire | — | — | |
| United States District Court of Massachusetts Bars Activist 1Globe Capital and Jiaqiang Li From Making Further Materially Misleading Statements Regarding Sinovac | Press release | Business Wire | — | — | |
| SAIF Partners Sends Letter to Sinovac Shareholders | Press release | Business Wire | — | — |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the SVA section they belong to.
Where else SVA is measured.
SVA earnings → · Analyst actions → · SEC filings →
Other Healthcare names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| BioPlus Acquisition Corp. (BIOS) | 822 | 0.00% | 47% |
| CYTRX CORP (CYTR) | 821 | -0.00% | 43% |
| Atara Biotherapeutics, Inc. (ATRA) | 813 | -0.27% | 45% |
| Ionis Pharmaceuticals, Inc. (IONS) | 811 | +0.02% | 52% |
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 →
Every ticker we measure the same way24
Apple (AAPL)
How AAPL actually reacts to news, measured.
NVIDIA (NVDA)
How NVDA actually reacts to news, measured.
Tesla (TSLA)
How TSLA actually reacts to news, measured.
Microsoft (MSFT)
How MSFT actually reacts to news, measured.
Advanced Micro Devices (AMD)
How AMD actually reacts to news, measured.
Amazon (AMZN)
How AMZN actually reacts to news, measured.
Alphabet (GOOG)
How GOOG actually reacts to news, measured.
Meta Platforms (META)
How META actually reacts to news, measured.
Broadcom (AVGO)
How AVGO actually reacts to news, measured.
JPMorgan Chase (JPM)
How JPM actually reacts to news, measured.
Visa (V)
How V actually reacts to news, measured.
Walmart (WMT)
How WMT actually reacts to news, measured.
Eli Lilly (LLY)
How LLY actually reacts to news, measured.
UnitedHealth Group (UNH)
How UNH actually reacts to news, measured.
Netflix (NFLX)
How NFLX actually reacts to news, measured.
Johnson & Johnson (JNJ)
How JNJ actually reacts to news, measured.
Exxon Mobil (XOM)
How XOM actually reacts to news, measured.
Home Depot (HD)
How HD actually reacts to news, measured.
Costco (COST)
How COST actually reacts to news, measured.
Mastercard (MA)
How MA actually reacts to news, measured.
Oracle (ORCL)
How ORCL actually reacts to news, measured.
Salesforce (CRM)
How CRM actually reacts to news, measured.
Bank of America (BAC)
How BAC actually reacts to news, measured.
Coca-Cola (KO)
How KO actually reacts to news, measured.
Walt Disney (DIS)
How DIS actually reacts to news, measured.
Browse all tickers
Every name we’ve measured, in one place.
How the numbers are made.
How is Sinovac Biotech, Ltd. - Ordinary Shares (Antigua/Barbudo)'s median reaction calculated?
Every labeled SVA 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 814 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. 46% of SVA'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 SVA'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.