MarketAxess Holdings, Inc. (MKTX)
MKTX moved a median of -0.17% 30 minutes after news, and -0.28% by the close. How MKTX actually reacts to news — the realized, point-in-time move the market made, measured across 344 labeled events over the last three years with zero look-ahead.
MKTX’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 48% | 341 |
| 30-min | -0.17% | 38% | 343 |
| 60-min | -0.03% | 44% | 343 |
| to close | -0.28% | 36% | 341 |
| Middle 50% of MKTX reactions | -0.70% to +0.32% |
|---|---|
| Median reaction (30-min) | -0.17% |
| Measured reactions | 344 |
Half of all MarketAxess Holdings, Inc. news events land between -0.70% and +0.32% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How MKTX reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 16 | -0.54% | 44% | -0.33% |
| Analyst downgrades | 29 | -0.06% | 28% | -0.13% |
| Rating reiterations | 92 | +0.05% | 55% | -0.10% |
| Price-target raises | 22 | -0.11% | 36% | -0.26% |
| Price-target cuts | 41 | -0.01% | 46% | -0.10% |
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. 1 further class was observed with fewer than 10 measured events and is not published. See how MKTX ranks against every other measured name →
That’s how MKTX usually reacts — get an email when it moves on news →Email me when MKTX moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to MKTX's baseline. Nothing else.
Recent MKTX events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Arcesium Integrates Additional MarketAxess Data and Analytics to Enhance Fixed Income Workflows | Press release | Business Wire | +0.01% | +0.01% | |
| Halper Sadeh LLC is Investigating Whether LFCR, MKTX, UTZ are Obtaining Fair Deals for their Shareholders | Press release | GlobeNewswire | +0.04% | +0.11% | |
| Form 8-K MARKETAXESS HOLDINGS For: Sep 25 | SEC filing · Form 8-K | SEC EDGAR | +0.07% | -0.01% | |
| Form DEFA14A MARKETAXESS HOLDINGS | SEC filing · Form DEFA14A | SEC EDGAR | +0.07% | -0.01% | |
| Are SAFT, LXFR, MKTX Obtaining Fair Deals for their Shareholders? | Press release | PR Newswire | -0.03% | +0.23% | |
| Halper Sadeh LLC is Investigating Whether HOWL, BZH, MKTX, LNTH are Obtaining Fair Deals for their Shareholders | Press release | GlobeNewswire | -0.04% | +0.00% | |
| Form DEFM14A MARKETAXESS HOLDINGS | SEC filing · Form DEFM14A | SEC EDGAR | +0.07% | +0.06% | |
| IMTC, MarketAxess Enter Relationship to Enhance Liquidity, Scale Custom Fixed Income Portfolios | Press release | PR Web | -0.02% | -0.07% | |
| MKTX Stock Alert: Halper Sadeh LLC is Investigating Whether MarketAxess Holdings Inc. is Obtaining a Fair Price for its Shareholders | Press release | Business Wire | +0.06% | -0.02% | |
| Form PREM14A MARKETAXESS HOLDINGS For: Sep 04 | SEC filing · Form PREM14A | SEC EDGAR | +0.06% | -0.02% | |
| Halper Sadeh LLC is Investigating Whether HOWL, BZH, MKTX, CBZ are Obtaining Fair Deals for their Shareholders | Press release | GlobeNewswire | -0.01% | +0.07% | |
| Are MKTX and CBZ Obtaining Fair Deals for their Shareholders? | Press release | PR Newswire | +0.00% | -0.03% | |
| Form 10-Q MARKETAXESS HOLDINGS For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -0.04% | — | |
| MKTX Alert: Monsey Firm of Wohl & Fruchter Investigating Fairness of the Proposed Sale of MarketAxess to Intercontinental Exchange | Press release | GlobeNewswire | -0.01% | +0.08% | |
| BRODSKY & SMITH SHAREHOLDER UPDATE: Notifying Investors of the Following Investigations: MarketAxess Holdings Inc. (Nasdaq – MKTX), CBIZ, Inc. (NYSE – CBZ), Sanara MedTech Inc. (Nasdaq – SMTI), TriCo Bancshares (Nasdaq – TCBK) | Press release | GlobeNewswire | -0.01% | +0.01% | |
| Halper Sadeh LLC is Investigating Whether MKTX, SMTI, LNTH are Obtaining Fair Deals for their Shareholders | Press release | GlobeNewswire | -0.02% | +0.01% | |
| Halper Sadeh LLC is Investigating Whether MKTX, SMTI, CBZ, LXFR are Obtaining Fair Deals for their Shareholders | Press release | GlobeNewswire | +0.02% | -0.28% | |
| Are MKTX, SMTI, CBZ, TCBK Obtaining Fair Deals for their Shareholders? | Press release | GlobeNewswire | -0.04% | -0.14% | |
| BRODSKY & SMITH SHAREHOLDER UPDATE: Notifying Investors of the Following Investigations: MarketAxess Holdings Inc. (Nasdaq – MKTX), CBIZ, Inc. (NYSE – CBZ), Sanara MedTech Inc. (Nasdaq – SMTI), TriCo Bancshares (Nasdaq – TCBK) | Press release | GlobeNewswire | -0.03% | -0.24% | |
| Form 8-K MARKETAXESS HOLDINGS For: Jul 29 | SEC filing · Form 8-K | SEC EDGAR | +0.39% | -0.24% | |
| Form 8-K MARKETAXESS HOLDINGS For: Jul 30 | SEC filing · Form 8-K | SEC EDGAR | +0.39% | -0.24% | |
| Form DEFA14A MARKETAXESS HOLDINGS | SEC filing · Form DEFA14A | SEC EDGAR | +0.39% | -0.24% | |
| MarketAxess Reports Second Quarter 2026 Financial Results | Press release | Business Wire | +0.39% | -0.24% | |
| MKTX Stock Alert: Halper Sadeh LLC is Investigating Whether MarketAxess Holdings Inc. is Obtaining a Fair Price for its Shareholders | Press release | Business Wire | +0.39% | -0.24% | |
| MarketAxess to Host Conference Call Announcing Second Quarter 2026 Financial Results on Friday, August 7, 2026 | Press release | Business Wire | +0.91% | +0.65% | |
| MarketAxess Announces Trading Volume Statistics for June and Second Quarter 2026 | Press release | Business Wire | +0.34% | +0.74% | |
| MarketAxess Introduces TraX Tape, Delivering an Enriched View of Bond Market Activity | Press release | Business Wire | +0.83% | -0.86% | |
| Form 8-K MARKETAXESS HOLDINGS For: Jun 10 | SEC filing · Form 8-K | SEC EDGAR | -0.58% | +1.29% | |
| MarketAxess Announces Trading Volume Statistics for May 2026 | Press release | Business Wire | +0.11% | -3.54% | |
| MarketAxess to Participate in Upcoming Investor Conferences | Press release | Business Wire | -0.03% | +0.42% | |
| Form 10-Q MARKETAXESS HOLDINGS For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.02% | -2.27% | |
| Form 8-K MARKETAXESS HOLDINGS For: May 07 | SEC filing · Form 8-K | SEC EDGAR | -2.78% | -0.07% | |
| MarketAxess Reports First Quarter 2026 Financial Results | Press release | Business Wire | -2.78% | -0.07% | |
| MarketAxess Announces Trading Volume Statistics for April 2026 | Press release | Business Wire | -0.84% | -1.08% | |
| MarketAxess and Moment Partner to Provide Retail Access to Institutional Fixed-Income Liquidity | Press release | Business Wire | -0.84% | -1.08% | |
| Form ARS MARKETAXESS HOLDINGS For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.00% | -1.13% | |
| Form DEF 14A MARKETAXESS HOLDINGS For: Apr 29 | SEC filing · Form DEF | SEC EDGAR | +0.00% | -1.13% | |
| Form DEFA14A MARKETAXESS HOLDINGS | SEC filing · Form DEFA14A | SEC EDGAR | +0.00% | -1.13% | |
| MarketAxess to Host Conference Call Announcing First Quarter 2026 Financial Results on Thursday, May 7, 2026 | Press release | Business Wire | +0.19% | -0.37% | |
| Form 8-K/A MARKETAXESS HOLDINGS For: Jan 22 | SEC filing · Form 8-K | SEC EDGAR | -0.09% | -2.00% | |
| MarketAxess Announces Trading Volume Statistics for March and First Quarter 2026 | Press release | Business Wire | -0.26% | +0.13% | |
| MarketAxess Announces Trading Volume Statistics for February 2026 | Press release | Business Wire | +2.23% | +1.07% | |
| William Quan to Join MarketAxess as Chief Technology Officer | Press release | Business Wire | +0.10% | -0.59% | |
| Form 10-K MARKETAXESS HOLDINGS For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +0.10% | -0.59% | |
| MarketAxess and DirectBooks Announce Integration to Streamline Access to Primary Issuance Data | Press release | Business Wire | +1.29% | +0.10% | |
| Form 8-K MARKETAXESS HOLDINGS For: Feb 16 | SEC filing · Form 8-K | SEC EDGAR | +0.20% | -0.88% | |
| Form 8-K MARKETAXESS HOLDINGS For: Feb 04 | SEC filing · Form 8-K | SEC EDGAR | +0.57% | -0.15% | |
| MarketAxess Reports Fourth Quarter and Full Year 2025 Financial Results | Press release | Business Wire | +0.57% | -0.15% | |
| MarketAxess Announces Trading Volume Statistics for January 2026 | Press release | Business Wire | +1.78% | +1.23% | |
| MarketAxess to Participate in the UBS Financial Services Conference | Press release | Business Wire | +0.12% | -0.41% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the MKTX section they belong to.
Where else MKTX is measured.
MKTX earnings → · Analyst actions → · SEC filings →
Other Financial Services names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Peoples Financial Services Corp. (PFIS) | 345 | -0.10% | 38% |
| Thomson Reuters Corp - Common Shares (TRI) | 345 | +0.08% | 55% |
| Reinsurance Group of America, Incorporated (RGA) | 344 | -0.02% | 49% |
| ASA Gold and Precious Metals Limited (ASA) | 342 | +0.08% | 57% |
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 Financial Services names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is MarketAxess Holdings, Inc.'s median reaction calculated?
Every labeled MKTX 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 344 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. 38% of MKTX'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 MKTX'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.