Sony Group
A destructive attack on Sony Pictures disabled systems, exposed sensitive business and employee data, and disrupted studio operations.
+0.4% SNE vs +1.1% 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 sessionNov 21, 2014
Normalized to 100 for both SNE and SPY.
- 02Public disclosureNov 24, 2014 · time unknown
Publication time is not documented; lower timing precision.
- 03First reaction closeNov 24, 2014
+1.8% company total return versus +0.3% for SPY; +1.6 pp market-relative return.
Disclosure time is unknown; the previous session close is used as baseline.
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 | SNE | SPY | Market-relative | Signal |
|---|---|---|---|---|---|
| First reaction | Nov 24, 2014 | +1.8% | +0.3% | +1.6 pp | Above SPY |
| +7 days | Dec 1, 2014 | +4.3% | -0.4% | +4.7 pp | Above SPY |
| +1 month | Dec 24, 2014 | +0.4% | +1.1% | -0.7 pp | Below SPY |
| +3 months | Feb 24, 2015 | +30.6% | +3.0% | +27.6 pp | Above SPY |
| +6 months | May 22, 2015 | +49.3% | +4.1% | +45.3 pp | Above SPY |
| +12 months | Nov 24, 2015 | +27.3% | +3.3% | +24.0 pp | Above SPY |
Compare with current catalog aggregates
| Window | This case | Catalog median | Catalog mean | n |
|---|---|---|---|---|
| First reaction | +1.6 pp | -0.8 pp | -1.5 pp | 30 |
| +7 days | +4.7 pp | -2.0 pp | -4.0 pp | 30 |
| +1 month | -0.7 pp | -6.6 pp | -6.8 pp | 30 |
| +3 months | +27.6 pp | -5.1 pp | -6.6 pp | 30 |
| +6 months | +45.3 pp | -5.6 pp | -7.5 pp | 30 |
| +12 months | +24.0 pp | -3.7 pp | -10.1 pp | 30 |
Normalized total return
SNE compared with SPY
Baseline session = 100. Adjusted close reflects splits and reinvested distributions.
Sony Group had +27.3% company total return versus +3.3% for SPY; +24.0 pp market-relative return. The chart shows normalized adjusted-close performance for up to 24 months.
View tabular chart fallback
| Date | SNE | SPY |
|---|---|---|
| Nov 21, 2014 | 100.0 | 100.0 |
| Dec 23, 2014 | 98.2 | 101.1 |
| Jan 26, 2015 | 110.0 | 100.0 |
| Feb 25, 2015 | 130.4 | 103.0 |
| Mar 26, 2015 | 125.0 | 100.3 |
| Apr 27, 2015 | 146.8 | 103.0 |
| May 27, 2015 | 147.1 | 103.9 |
| Jun 25, 2015 | 146.7 | 103.1 |
| Jul 27, 2015 | 136.0 | 101.5 |
| Aug 25, 2015 | 112.0 | 92.0 |
| Sep 24, 2015 | 117.8 | 95.2 |
| Oct 23, 2015 | 136.0 | 102.4 |
| Nov 23, 2015 | 126.5 | 103.2 |
| Dec 23, 2015 | 116.3 | 102.3 |
| Jan 26, 2016 | 100.3 | 94.4 |
| Feb 25, 2016 | 100.8 | 97.1 |
| Mar 28, 2016 | 121.1 | 101.4 |
| Apr 26, 2016 | 122.2 | 104.3 |
| May 25, 2016 | 132.3 | 104.5 |
| Jun 24, 2016 | 130.8 | 102.0 |
| Jul 26, 2016 | 143.2 | 108.7 |
| Aug 24, 2016 | 157.6 | 109.3 |
| Sep 23, 2016 | 159.3 | 108.9 |
| Oct 24, 2016 | 152.8 | 108.4 |
| Nov 22, 2016 | 143.4 | 111.2 |
| Nov 23, 2016 | 142.9 | 111.3 |
Price recovery
No initial drop
Here, recovery only means that adjusted close reached the baseline again. It does not mean every effect of the incident ended.
- State
- No initial drop
- Initial trough
- +1.8% on Nov 24, 2014
- Recovery close
- Not applicable / not observed
- Calendar days
- —
- Observation cap
- 24 months after disclosure
Hypothetical $1,000
What would $1,000 have looked like?
Compare $1,000 in SNE with $1,000 in SPY, bought and measured on the same dates.
Entry Nov 28, 2014 Exit May 28, 2015
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
Sony Pictures employees encountered disabled computers and a threatening message on November 24. Subsequent company reporting described destroyed network hardware, stolen information and serious disruption across the studio’s network.
Sony’s US-traded ADR is the analyzed instrument and the parent role is explicit. The exact first-publication time cannot be established from the retained primary material, so the record uses date precision and the prior session baseline.
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 Dec 15, 2014Sony Pictures cyber notification Sony Pictures Entertainment Supports: Disclosure, Impact, Description
- primary Feb 4, 2015Sony quarterly securities report for the quarter ended December 31, 2014 Sony Corporation Supports: Listing, Impact, Description
- secondary Nov 24, 2014Hackers reportedly strike Sony Pictures' computer system Fortune Supports: Disclosure, Timing
- Listing evidenceChecked Jul 20, 2026Sony SEC issuer record U.S. Securities and Exchange Commission Sony's SEC history confirms its NYSE-traded ADR, then SNE, at the time of the subsidiary incident.
Why it is included. Sony Pictures was a directly controlled subsidiary, and the destructive attack caused extensive system failure, operational disruption and theft of sensitive information at a scale that meets the project threshold. Reviewed Jul 20, 2026.