W.W. Grainger, Inc. (GWW)
GWW moved a median of +0.08% 30 minutes after news, and +0.01% by the close. How GWW actually reacts to news — the realized, point-in-time move the market made, measured across 369 labeled events over the last three years with zero look-ahead.
GWW’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 42% | 363 |
| 30-min | +0.08% | 58% | 369 |
| 60-min | +0.07% | 56% | 369 |
| to close | +0.01% | 50% | 365 |
| Middle 50% of GWW reactions | -0.42% to +0.57% |
|---|---|
| Median reaction (30-min) | +0.08% |
| Measured reactions | 369 |
Half of all W.W. Grainger, Inc. news events land between -0.42% and +0.57% at 30 minutes.
Reaction stats as of 2026-08-31. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How GWW reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 32 | -0.07% | 47% | +0.14% |
| Analyst downgrades | 31 | +0.23% | 58% | +0.14% |
| Coverage initiations | 23 | +0.43% | 74% | +0.36% |
| Rating reiterations | 50 | -0.07% | 44% | +0.15% |
| Price-target raises | 29 | -0.02% | 48% | +0.24% |
| Price-target cuts | 11 | -0.02% | 46% | +0.21% |
Last 3 years, pulled 2026-08-31. 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 GWW ranks against every other measured name →
That’s how GWW usually reacts — get an email when it moves on news →Email me when GWW moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to GWW's baseline. Nothing else.
Recent GWW events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| GRAINGER ACQUIRES TECHNOLOGY ASSETS FROM ADROIT WORLDWIDE MEDIA | Press release | PR Newswire | +0.01% | -0.45% | |
| GRAINGER OPENS NORTHWEST DISTRIBUTION CENTER IN GRESHAM, OREGON | Press release | PR Newswire | +0.66% | -0.09% | |
| Form 10-Q W.W. GRAINGER, INC. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.05% | -1.36% | |
| Form 8-K W.W. GRAINGER, INC. For: Aug 04 | SEC filing · Form 8-K | SEC EDGAR | +0.21% | +1.55% | |
| GRAINGER REPORTS RESULTS FOR THE SECOND QUARTER 2026 | Press release | PR Newswire | +0.21% | +1.55% | |
| Form 8-K W.W. GRAINGER, INC. For: Jul 31 | SEC filing · Form 8-K | SEC EDGAR | +2.10% | +1.73% | |
| GRAINGER DECLARES QUARTERLY DIVIDEND | Press release | PR Newswire | +0.00% | +0.08% | |
| GRAINGER AND THE AMERICAN RED CROSS CELEBRATE 25 YEARS OF PARTNERSHIP AND STRENGTHENING COMMUNITIES | Press release | PR Newswire | +0.16% | +1.00% | |
| Form 8-K W.W. GRAINGER, INC. For: May 07 | SEC filing · Form 8-K | SEC EDGAR | -0.73% | -1.46% | |
| Form 10-Q W.W. GRAINGER, INC. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.73% | -1.46% | |
| Form S-3ASR W.W. GRAINGER, INC. | SEC filing · Form S-3ASR | SEC EDGAR | -0.73% | -1.46% | |
| GRAINGER REPORTS RESULTS FOR THE FIRST QUARTER 2026 | Press release | PR Newswire | -1.56% | -3.59% | |
| Form 8-K W.W. GRAINGER, INC. For: Apr 29 | SEC filing · Form 8-K | SEC EDGAR | -0.33% | -1.36% | |
| GRAINGER INCREASES QUARTERLY DIVIDEND BY 10% | Press release | PR Newswire | -0.23% | -0.07% | |
| GRAINGER'S SHAREHOLDERS ELECT 12 DIRECTORS AND OTHER ANNUAL MEETING HIGHLIGHTS | Press release | PR Newswire | +0.02% | +0.09% | |
| FORTUNE MEDIA AND GREAT PLACE TO WORK NAME GRAINGER TO '100 BEST COMPANIES TO WORK FOR' IN 2026 | Press release | PR Newswire | -0.16% | +2.05% | |
| GRAINGER SHOW BRINGS TOGETHER MORE THAN 10,000 MRO LEADERS TO HELP CUSTOMERS SOLVE OPERATIONAL CHALLENGES AND EMBRACE INNOVATIONS SHAPING INDUSTRY'S FUTURE | Press release | PR Newswire | +0.25% | -0.03% | |
| ETHISPHERE NAMES GRAINGER AS ONE OF THE 2026 WORLD'S MOST ETHICAL COMPANIES® | Press release | PR Newswire | -0.19% | -1.53% | |
| Form ARS W.W. GRAINGER, INC. For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | -0.74% | — | |
| Form DEF 14A W.W. GRAINGER, INC. For: Apr 29 | SEC filing · Form DEF | SEC EDGAR | -0.74% | — | |
| Form DEFA14A W.W. GRAINGER, INC. | SEC filing · Form DEFA14A | SEC EDGAR | -0.74% | — | |
| Form 10-K W.W. GRAINGER, INC. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | -0.01% | -0.06% | |
| TWELVE DIRECTORS SLATED FOR GRAINGER'S BOARD TO BE VOTED ON AT THE COMPANY'S ANNUAL MEETING ON APRIL 29, 2026 | Press release | PR Newswire | +0.07% | -0.01% | |
| Form 8-K W.W. GRAINGER, INC. For: Feb 03 | SEC filing · Form 8-K | SEC EDGAR | +2.19% | +5.00% | |
| GRAINGER REPORTS RESULTS FOR THE FOURTH QUARTER AND FULL YEAR 2025 | Press release | PR Newswire | +2.19% | +5.00% | |
| GRAINGER DECLARES QUARTERLY DIVIDEND | Press release | PR Newswire | +0.09% | +0.57% | |
| Form 8-K W.W. GRAINGER, INC. For: Dec 11 | SEC filing · Form 8-K | SEC EDGAR | -0.15% | -1.80% | |
| Form 10-Q W.W. GRAINGER, INC. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.47% | -0.04% | |
| Form 8-K W.W. GRAINGER, INC. For: Oct 31 | SEC filing · Form 8-K | SEC EDGAR | -0.76% | +1.03% | |
| GRAINGER REPORTS RESULTS FOR THE THIRD QUARTER 2025 | Press release | PR Newswire | -0.76% | +1.03% | |
| GRAINGER DECLARES QUARTERLY DIVIDEND | Press release | PR Newswire | -0.17% | -0.01% | |
| GRAINGER ANNOUNCES AGREEMENT TO DIVEST CROMWELL | Press release | PR Newswire | +0.28% | +0.53% | |
| GRAINGER'S BUCKET BUILD VOLUNTEERS ASSEMBLED MORE THAN 4,000 DISASTER RELIEF KITS TO SUPPORT COMMUNITIES ACROSS NORTH AMERICA | Press release | PR Newswire | +1.00% | +1.47% | |
| Form 10-Q W.W. GRAINGER, INC. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +0.72% | +0.93% | |
| Form 8-K W.W. GRAINGER, INC. For: Aug 01 | SEC filing · Form 8-K | SEC EDGAR | -0.03% | -0.40% | |
| GRAINGER REPORTS RESULTS FOR THE SECOND QUARTER 2025 | Press release | PR Newswire | -0.03% | -0.40% | |
| GRAINGER DECLARES QUARTERLY DIVIDEND | Press release | PR Newswire | — | -1.07% | |
| Form 8-K W.W. GRAINGER, INC. For: May 15 | SEC filing · Form 8-K | SEC EDGAR | -0.09% | +1.35% | |
| Form 8-K W.W. GRAINGER, INC. For: May 02 | SEC filing · Form 8-K | SEC EDGAR | +0.38% | +0.39% | |
| GRAINGER NAMES MELANIE TINTO AS CHIEF HUMAN RESOURCES OFFICER | Press release | PR Newswire | +0.19% | +1.01% | |
| Form 10-Q W.W. GRAINGER, INC. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +0.19% | +1.01% | |
| Form 8-K W.W. GRAINGER, INC. For: May 01 | SEC filing · Form 8-K | SEC EDGAR | +2.73% | +2.68% | |
| GRAINGER REPORTS RESULTS FOR THE FIRST QUARTER 2025 | Press release | PR Newswire | +2.73% | +2.68% | |
| GRAINGER INCREASES QUARTERLY DIVIDEND BY 10% | Press release | PR Newswire | -0.06% | +1.23% | |
| GRAINGER'S SHAREHOLDERS ELECT 12 DIRECTORS AND OTHER ANNUAL MEETING HIGHLIGHTS | Press release | PR Newswire | +0.03% | +1.23% | |
| Form DEFA14A W.W. GRAINGER, INC. | SEC filing · Form DEFA14A | SEC EDGAR | +0.07% | -2.65% | |
| ETHISPHERE NAMES GRAINGER AS ONE OF THE 2025 WORLD'S MOST ETHICAL COMPANIES® | Press release | PR Newswire | -0.49% | -2.33% | |
| Form ARS W.W. GRAINGER, INC. For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.63% | +1.64% | |
| Form DEF 14A W.W. GRAINGER, INC. For: Apr 30 | SEC filing · Form DEF | SEC EDGAR | +0.63% | +1.64% | |
| Form DEFA14A W.W. GRAINGER, INC. | SEC filing · Form DEFA14A | SEC EDGAR | +0.63% | +1.64% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the GWW section they belong to.
Where else GWW is measured.
GWW earnings → · Analyst actions → · SEC filings →
Other Industrials names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Deere & Company (DE) | 372 | +0.01% | 52% |
| Nordson Corporation (NDSN) | 372 | -0.00% | 49% |
| C.H. Robinson Worldwide, Inc. (CHRW) | 368 | -0.08% | 43% |
| Franklin Electric Co., Inc. (FELE) | 368 | +0.03% | 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 Industrials names, measured the same way →
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Every name we’ve measured, in one place.
How the numbers are made.
How is W.W. Grainger, Inc.'s median reaction calculated?
Every labeled GWW 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 369 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. 58% of GWW'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 2026-08-31.
Does GWW'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.