CarParts.com, Inc. (PRTS)
PRTS moved a median of -0.34% 30 minutes after news, and -0.98% by the close. How PRTS actually reacts to news — the realized, point-in-time move the market made, measured across 247 labeled events over the last three years with zero look-ahead.
PRTS’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | 0.00% | 42% | 246 |
| 30-min | -0.34% | 37% | 247 |
| 60-min | -0.96% | 37% | 247 |
| to close | -0.98% | 40% | 247 |
| Middle 50% of PRTS reactions | -2.23% to +1.04% |
|---|---|
| Median reaction (30-min) | -0.34% |
| Measured reactions | 247 |
Half of all CarParts.com, Inc. news events land between -2.23% and +1.04% 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 PRTS moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to PRTS's baseline. Nothing else.
Recent PRTS events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| CarParts.com Launches CarParts+ Rewards, Its First Points-Based Loyalty Program | Press release | PR Newswire | — | -6.46% | |
| CarParts.com Sets Third Quarter 2026 Conference Call for Thursday, October 29, 2026 | Press release | PR Newswire | +0.00% | +0.12% | |
| Form 10-Q CarParts.com, Inc. For: Jul 04 | SEC filing · Form 10-Q | SEC EDGAR | +10.08% | +13.45% | |
| CarParts.com Reports Second Quarter 2026 Results | Press release | PR Newswire | +10.08% | +13.45% | |
| Form 8-K CarParts.com, Inc. For: Aug 06 | SEC filing · Form 8-K | SEC EDGAR | +10.08% | +13.45% | |
| CarParts.com Sets Second Quarter 2026 Conference Call for Thursday, August 6, 2026 | Press release | PR Newswire | +0.00% | +1.74% | |
| Form EFFECT CarParts.com, Inc. | SEC filing · Form EFFECT | SEC EDGAR | -3.70% | -5.18% | |
| CarParts.com Enters Into $25 Million Revolving Credit Facility | Press release | PR Newswire | +0.00% | +4.28% | |
| Form 8-K CarParts.com, Inc. For: Jun 15 | SEC filing · Form 8-K | SEC EDGAR | -3.70% | -5.18% | |
| Form 8-K CarParts.com, Inc. For: Jun 09 | SEC filing · Form 8-K | SEC EDGAR | +1.03% | +2.06% | |
| Form 8-K CarParts.com, Inc. For: Jun 06 | SEC filing · Form 8-K | SEC EDGAR | -0.17% | +0.00% | |
| Form S-3 CarParts.com, Inc. | SEC filing · Form S-3 | SEC EDGAR | -0.17% | +0.00% | |
| Form S-8 CarParts.com, Inc. | SEC filing · Form S-8 | SEC EDGAR | -0.48% | +1.45% | |
| Form 8-K CarParts.com, Inc. For: May 21 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.48% | |
| Form 8-A12B/A CarParts.com, Inc. | SEC filing · Form 8-A12B | SEC EDGAR | -1.11% | -10.44% | |
| Form 8-K CarParts.com, Inc. For: May 11 | SEC filing · Form 8-K | SEC EDGAR | -0.84% | -9.52% | |
| Form 10-Q CarParts.com, Inc. For: Apr 04 | SEC filing · Form 10-Q | SEC EDGAR | -5.68% | -8.77% | |
| CarParts.com Reports First Quarter 2026 Results | Press release | PR Newswire | -5.68% | -8.77% | |
| Form 8-K CarParts.com, Inc. For: May 07 | SEC filing · Form 8-K | SEC EDGAR | -5.68% | -8.77% | |
| CarParts.com Sets First Quarter 2026 Conference Call for Thursday, May 7, 2026 | Press release | PR Newswire | +0.04% | +6.07% | |
| CarParts.com Introduces the CarParts.com Mastercard® - the Smarter Way to Pay for Auto Parts | Press release | PR Newswire | +0.00% | +0.33% | |
| Form DEF 14A CarParts.com, Inc. For: May 11 | SEC filing · Form DEF | SEC EDGAR | +5.06% | +3.86% | |
| CarParts.com and A-Premium Expand Partnership to Launch 30,000-SKU JC Whitney® Branded Product Line | Press release | PR Newswire | -1.18% | -1.31% | |
| Form 8-K CarParts.com, Inc. For: Mar 21 | SEC filing · Form 8-K | SEC EDGAR | -1.18% | -1.31% | |
| Form PRE 14A CarParts.com, Inc. For: May 11 | SEC filing · Form PRE | SEC EDGAR | -0.17% | -3.58% | |
| CarParts.com Reports Fourth Quarter and Fiscal Year 2025 Results | Press release | PR Newswire | -0.07% | -3.13% | |
| Form 10-K CarParts.com, Inc. For: Jan 03 | SEC filing · Form 10-K | SEC EDGAR | -0.07% | -3.13% | |
| Form 8-K CarParts.com, Inc. For: Mar 05 | SEC filing · Form 8-K | SEC EDGAR | -0.07% | -3.13% | |
| CarParts.com Sets Fourth Quarter 2025 Conference Call for Thursday, March 5, 2026 | Press release | PR Newswire | +0.46% | +8.87% | |
| CarParts.com Closes Transaction to Transition Manila Captive Operations to Lean Solutions Group for New Efficiencies and Long-Term Savings | Press release | PR Newswire | -1.88% | +1.36% | |
| CarParts.com Announces Evan Fischer® as Exclusive Brand on eBay | Press release | PR Newswire | -2.39% | -1.52% | |
| Form EFFECT CarParts.com, Inc. | SEC filing · Form EFFECT | SEC EDGAR | -0.74% | -3.80% | |
| Form S-8 CarParts.com, Inc. | SEC filing · Form S-8 | SEC EDGAR | -1.56% | -7.35% | |
| Form S-3 CarParts.com, Inc. | SEC filing · Form S-3 | SEC EDGAR | +1.20% | +0.13% | |
| Form 8-K CarParts.com, Inc. For: Dec 09 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | +0.54% | |
| Form 8-K CarParts.com, Inc. For: Nov 11 | SEC filing · Form 8-K | SEC EDGAR | +0.15% | -8.20% | |
| CarParts.com Reports Third Quarter 2025 Results | Press release | PR Newswire | -4.55% | -13.43% | |
| Form 10-Q CarParts.com, Inc. For: Sep 27 | SEC filing · Form 10-Q | SEC EDGAR | -4.55% | -13.43% | |
| Form 8-K CarParts.com, Inc. For: Nov 10 | SEC filing · Form 8-K | SEC EDGAR | -4.55% | -13.43% | |
| Form 8-K CarParts.com, Inc. For: Nov 07 | SEC filing · Form 8-K | SEC EDGAR | +0.20% | +0.00% | |
| CarParts.com Announces Date Change for its Third Quarter 2025 Conference Call | Press release | PR Newswire | -0.17% | -3.82% | |
| CarParts.com Sets Third Quarter 2025 Conference Call for Tuesday, November 11, 2025 | Press release | PR Newswire | +0.00% | -4.26% | |
| CarParts.com to Attend the LD Micro Main Event XIX | Press release | PR Newswire | -1.41% | -2.94% | |
| CarParts.com Announces Board Transitions Following Strategic Investment | Press release | PR Newswire | -0.72% | +0.72% | |
| Form 8-K CarParts.com, Inc. For: Oct 07 | SEC filing · Form 8-K | SEC EDGAR | -0.72% | +0.72% | |
| Form 8-K CarParts.com, Inc. For: Sep 08 | SEC filing · Form 8-K | SEC EDGAR | +0.00% | -3.61% | |
| CarParts.com Secures Strategic Investment from Global Industry Leaders ZongTeng Group, A-Premium, and CDH Investments | Press release | PR Newswire | -7.77% | -10.08% | |
| CarParts.com Reports Second Quarter 2025 Results | Press release | PR Newswire | -2.32% | -8.95% | |
| Form 10-Q CarParts.com, Inc. For: Jun 28 | SEC filing · Form 10-Q | SEC EDGAR | -2.32% | -8.95% | |
| Form 8-K CarParts.com, Inc. For: Aug 12 | SEC filing · Form 8-K | SEC EDGAR | -2.32% | -8.95% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the PRTS section they belong to.
Where else PRTS is measured.
PRTS earnings → · Analyst actions → · SEC filings →
Other Consumer Cyclical names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Stoneridge, Inc. (SRI) | 249 | -0.06% | 46% |
| CHANTICLEER HOLDINGS INC (BURG) | 248 | -0.02% | 36% |
| Madison Square Garden Co, Inc (MSGN) | 245 | -0.11% | 47% |
| GameStop Corporation (GME) | 244 | -0.13% | 46% |
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 Consumer Cyclical names, measured the same way →
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How the numbers are made.
How is CarParts.com, Inc.'s median reaction calculated?
Every labeled PRTS 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 247 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. 37% of PRTS'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 PRTS'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.