The Clorox Company
Clorox disclosed unauthorized activity that forced systems offline and later caused widescale operational, order-processing and product-availability disruption.
-6.7% CLX vs +0.5% SPY
This site shows how share prices moved after an incident became public. It does not prove that the incident caused the move. Company news, sector moves and the wider market can affect every result. Educational only — not investment advice.
Disclosure timing
When could the market react?
The baseline is the last adjusted close before the news was public. The reaction session is the first close afterward.
- 01Baseline sessionAug 14, 2023
Normalized to 100 for both CLX and SPY.
- 02Public disclosureAug 14, 2023, 5:29 PM EDT
Documented publication time.
- 03First reaction closeAug 15, 2023
-1.6% company total return versus -1.2% for SPY; -0.4 pp market-relative return.
Time windows
Company vs SPY
Each row uses the last trading session on or before its target date. “Market-relative” is the company return minus the SPY return, in percentage points.
| Window | Endpoint | CLX | SPY | Market-relative | Signal |
|---|---|---|---|---|---|
| First reaction | Aug 15, 2023 | -1.6% | -1.2% | -0.4 pp | Below SPY |
| +7 days | Aug 21, 2023 | -6.3% | -2.0% | -4.3 pp | Below SPY |
| +1 month | Sep 14, 2023 | -6.7% | +0.5% | -7.2 pp | Below SPY |
| +3 months | Nov 14, 2023 | -13.9% | +0.5% | -14.4 pp | Below SPY |
| +6 months | Feb 14, 2024 | -3.2% | +12.1% | -15.3 pp | Below SPY |
| +12 months | Aug 14, 2024 | -6.5% | +23.0% | -29.6 pp | Below SPY |
Compare with current catalog aggregates
| Window | This case | Catalog median | Catalog mean | n |
|---|---|---|---|---|
| First reaction | -0.4 pp | -0.8 pp | -1.5 pp | 30 |
| +7 days | -4.3 pp | -2.0 pp | -4.0 pp | 30 |
| +1 month | -7.2 pp | -6.6 pp | -6.8 pp | 30 |
| +3 months | -14.4 pp | -5.1 pp | -6.6 pp | 30 |
| +6 months | -15.3 pp | -5.6 pp | -7.5 pp | 30 |
| +12 months | -29.6 pp | -3.7 pp | -10.1 pp | 30 |
Normalized total return
CLX compared with SPY
Baseline session = 100. Adjusted close reflects splits and reinvested distributions.
The Clorox Company had -6.5% company total return versus +23.0% for SPY; -29.6 pp market-relative return. The chart shows normalized adjusted-close performance for up to 24 months.
View tabular chart fallback
| Date | CLX | SPY |
|---|---|---|
| Aug 14, 2023 | 100.0 | 100.0 |
| Sep 13, 2023 | 92.0 | 99.6 |
| Oct 12, 2023 | 75.0 | 97.1 |
| Nov 10, 2023 | 84.2 | 98.7 |
| Dec 12, 2023 | 89.8 | 103.9 |
| Jan 12, 2024 | 90.4 | 107.2 |
| Feb 13, 2024 | 97.3 | 111.1 |
| Mar 14, 2024 | 96.4 | 115.8 |
| Apr 15, 2024 | 89.4 | 113.8 |
| May 14, 2024 | 88.8 | 118.0 |
| Jun 13, 2024 | 85.2 | 122.4 |
| Jul 16, 2024 | 87.1 | 127.8 |
| Aug 14, 2024 | 93.5 | 123.0 |
| Sep 13, 2024 | 107.5 | 127.2 |
| Oct 14, 2024 | 104.4 | 132.6 |
| Nov 12, 2024 | 107.4 | 135.5 |
| Dec 12, 2024 | 107.3 | 137.2 |
| Jan 15, 2025 | 103.2 | 135.0 |
| Feb 14, 2025 | 97.1 | 138.9 |
| Mar 18, 2025 | 95.1 | 127.8 |
| Apr 16, 2025 | 89.8 | 120.1 |
| May 16, 2025 | 90.3 | 135.7 |
| Jun 17, 2025 | 80.9 | 136.5 |
| Jul 18, 2025 | 85.0 | 143.8 |
| Aug 14, 2025 | 81.4 | 147.8 |
Price recovery
Recovered
Here, recovery only means that adjusted close reached the baseline again. It does not mean every effect of the incident ended.
- State
- Recovered
- Initial trough
- -6.3% on Aug 21, 2023
- Recovery close
- Aug 26, 2024
- Calendar days
- 378
- Observation cap
- 24 months after disclosure
Hypothetical $1,000
What would $1,000 have looked like?
Compare $1,000 in CLX with $1,000 in SPY, bought and measured on the same dates.
Entry Aug 17, 2023 Exit Feb 16, 2024
Uses fractional shares and adjusted close. Leaves out taxes, fees and slippage. The holding period starts on the purchase date. This is a historical illustration, not an investment strategy.
Case note
Clorox initially reported unauthorized activity and precautionary system shutdowns. A later filing described damaged IT infrastructure, widescale disruption, manual processes, product outages and an expected material effect on quarterly results.
The first filing was accepted at 5:29 p.m. EDT. August 14 is therefore the baseline and August 15 the reaction session, avoiding the MVP’s mistake of treating every disclosure day as already tradable.
Evidence
Sources and case review
We qualify each case before checking its price results. These links support the disclosure date, listing, incident and business impact.
- primary Aug 14, 2023Clorox August 14, 2023 Form 8-K filing detail The Clorox Company / U.S. SEC Supports: Disclosure, Timing, Listing, Impact, Description
- primary Sep 18, 2023Clorox September 18, 2023 Form 8-K The Clorox Company / U.S. SEC Supports: Impact, Description
- Listing evidenceChecked Jul 20, 2026Clorox August 14, 2023 Form 8-K filing detail U.S. Securities and Exchange Commission The filing identifies Clorox as the NYSE-listed registrant and was accepted at 5:29 p.m. EDT.
Why it is included. Clorox directly suffered the attack and later declared material quarterly effects after systems damage disrupted production, ordering and shipping. Inclusion was based on those operating signals, not the share-price path. Reviewed Jul 20, 2026.