Groupon, Inc. (GRPN)
GRPN moved a median of +0.09% 30 minutes after news, and +0.23% by the close. How GRPN actually reacts to news — the realized, point-in-time move the market made, measured across 248 labeled events over the last three years with zero look-ahead.
GRPN’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 50% | 246 |
| 30-min | +0.09% | 53% | 246 |
| 60-min | +0.41% | 57% | 246 |
| to close | +0.23% | 52% | 243 |
| Middle 50% of GRPN reactions | -0.89% to +1.83% |
|---|---|
| Median reaction (30-min) | +0.09% |
| Measured reactions | 248 |
Half of all Groupon, Inc. news events land between -0.89% and +1.83% 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 GRPN moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to GRPN's baseline. Nothing else.
Recent GRPN events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Groupon Shareholder Nick Nemeth Calls for Aggressive Share Buybacks | Press release | GlobeNewswire | +0.03% | +12.21% | |
| Form 10-Q Groupon, Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -2.58% | -9.02% | |
| Form 8-K Groupon, Inc. For: Aug 06 | SEC filing · Form 8-K | SEC EDGAR | -2.58% | -9.02% | |
| Form 8-K Groupon, Inc. For: Jun 11 | SEC filing · Form 8-K | SEC EDGAR | -0.98% | -3.86% | |
| Form 8-K Groupon, Inc. For: Jun 08 | SEC filing · Form 8-K | SEC EDGAR | -1.67% | -3.75% | |
| Form 8-K Groupon, Inc. For: May 21 | SEC filing · Form 8-K | SEC EDGAR | -4.44% | +9.47% | |
| Groupon Shareholder Nick Nemeth Urges Board to Revamp Platform, Rebrand for the Thrifting Generation, and Accelerate Buybacks | Press release | GlobeNewswire | +1.96% | +5.94% | |
| Form 10-Q Groupon, Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +11.72% | +11.13% | |
| Form 8-K Groupon, Inc. For: May 07 | SEC filing · Form 8-K | SEC EDGAR | +11.72% | +11.13% | |
| Form DEF 14A Groupon, Inc. For: Jun 11 | SEC filing · Form DEF | SEC EDGAR | -0.70% | +0.00% | |
| Form DEFA14A Groupon, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | -0.70% | +0.00% | |
| Form PRE 14A Groupon, Inc. For: Jun 11 | SEC filing · Form PRE | SEC EDGAR | +3.31% | +1.73% | |
| Form 10-K Groupon, Inc. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +4.01% | -1.16% | |
| Form 8-K Groupon, Inc. For: Mar 10 | SEC filing · Form 8-K | SEC EDGAR | +4.01% | -1.16% | |
| Form 8-K Groupon, Inc. For: Dec 23 | SEC filing · Form 8-K | SEC EDGAR | -0.82% | -0.56% | |
| Form 8-K Groupon, Inc. For: Dec 08 | SEC filing · Form 8-K | SEC EDGAR | -0.39% | -7.81% | |
| Form 10-Q Groupon, Inc. For: Sep 30 | SEC filing · Form 10-Q | SEC EDGAR | +9.01% | +1.07% | |
| Form 8-K Groupon, Inc. For: Nov 06 | SEC filing · Form 8-K | SEC EDGAR | +9.01% | +1.07% | |
| Form 10-Q Groupon, Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +3.44% | -5.41% | |
| Form 8-K Groupon, Inc. For: Aug 06 | SEC filing · Form 8-K | SEC EDGAR | +3.44% | -5.41% | |
| Form 8-K Groupon, Inc. For: Jul 02 | SEC filing · Form 8-K | SEC EDGAR | +0.37% | +0.82% | |
| Form 8-K Groupon, Inc. For: Jun 18 | SEC filing · Form 8-K | SEC EDGAR | +1.02% | +3.21% | |
| Form 8-K Groupon, Inc. For: Jun 11 | SEC filing · Form 8-K | SEC EDGAR | -0.55% | +3.21% | |
| "I'm Bored!": 52% of Chicago Kids Complain Within a Week of Summer Break | Press release | ACCESS Newswire | +0.92% | -0.67% | |
| Form DEFA14A Groupon, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | -0.30% | +1.05% | |
| Form 10-Q Groupon, Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +10.16% | +27.42% | |
| Form 8-K Groupon, Inc. For: May 07 | SEC filing · Form 8-K | SEC EDGAR | +10.16% | +27.42% | |
| Form DEF 14A Groupon, Inc. For: Dec 31 | SEC filing · Form DEF | SEC EDGAR | -1.53% | -0.88% | |
| Form DEFA14A Groupon, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | -1.53% | -0.88% | |
| Recharge leaps into B2B with UK Giftcloud acquisition | Press release | PR Newswire | -0.50% | +0.58% | |
| Form 10-K Groupon, Inc. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +6.86% | +14.12% | |
| Form 8-K Groupon, Inc. For: Mar 11 | SEC filing · Form 8-K | SEC EDGAR | +6.86% | +14.12% | |
| Form 8-K Groupon, Inc. For: Dec 10 | SEC filing · Form 8-K | SEC EDGAR | -1.44% | -0.08% | |
| Form 8-K Groupon, Inc. For: Nov 19 | SEC filing · Form 8-K | SEC EDGAR | -0.68% | -3.63% | |
| Form 8-K Groupon, Inc. For: Nov 12 | SEC filing · Form 8-K | SEC EDGAR | -5.03% | -5.49% | |
| Form 10-Q Groupon, Inc. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | -2.84% | -9.82% | |
| Form 8-K Groupon, Inc. For: Jul 30 | SEC filing · Form 8-K | SEC EDGAR | -2.84% | -9.82% | |
| Form S-8 Groupon, Inc. | SEC filing · Form S-8 | SEC EDGAR | +0.20% | +3.80% | |
| Form 8-K Groupon, Inc. For: Jun 12 | SEC filing · Form 8-K | SEC EDGAR | -1.60% | -3.50% | |
| Form DEFA14A Groupon, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | +0.12% | -0.30% | |
| Form 10-Q Groupon, Inc. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | +7.83% | +8.08% | |
| Form 8-K Groupon, Inc. For: May 09 | SEC filing · Form 8-K | SEC EDGAR | +7.83% | +8.08% | |
| Form 8-K/A Groupon, Inc. For: May 08 | SEC filing · Form 8-K | SEC EDGAR | +7.83% | +8.08% | |
| Form 8-K Groupon, Inc. For: May 01 | SEC filing · Form 8-K | SEC EDGAR | -0.27% | -0.36% | |
| Form DEF 14A Groupon, Inc. For: Dec 31 | SEC filing · Form DEF | SEC EDGAR | +0.43% | -0.17% | |
| Form DEFA14A Groupon, Inc. | SEC filing · Form DEFA14A | SEC EDGAR | +0.43% | -0.17% | |
| Form 8-K Groupon, Inc. For: Apr 09 | SEC filing · Form 8-K | SEC EDGAR | -2.99% | +4.34% | |
| Form 8-K Groupon, Inc. For: Mar 28 | SEC filing · Form 8-K | SEC EDGAR | +1.34% | -5.57% | |
| Form 10-K Groupon, Inc. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +4.14% | -22.19% | |
| Form 8-K Groupon, Inc. For: Mar 15 | SEC filing · Form 8-K | SEC EDGAR | +4.14% | -22.19% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the GRPN section they belong to.
Where else GRPN is measured.
GRPN earnings → · Analyst actions → · SEC filings →
Other Technology names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| CHANGYOU.COM (CYOU) | 249 | +0.06% | 54% |
| Mitek Systems, Inc. (MITK) | 249 | +0.20% | 54% |
| ABILITY INC ORDINARY SHARES (ABIL) | 247 | 0.00% | 43% |
| PC Connection, Inc. (CNXN) | 247 | +0.10% | 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.
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How the numbers are made.
How is Groupon, Inc.'s median reaction calculated?
Every labeled GRPN 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 248 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. 53% of GRPN'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 GRPN'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.