- Open
- 325.00
- High
- 321.39
- Low
- 321.38
- Close
- 321.39
- Change
- -5.00 (-1.54%)
- Volume
- 490
| 27 Oct 2026 | 07:00:02 | Lapse of Brave Bison Offer and Notice of Results |
| 23 Oct 2026 | 17:20:00 | Form 8.3 - System1 Group - Bainsville Commercial |
| 21 Oct 2026 | 16:33:59 | Form 8.3 - System1 Group - Bainsville Commercial |
| 16 Oct 2026 | 17:26:48 | Form 8.3 - System1 Group - Bainsville Commercial |
| 7 Oct 2026 | Annual Report and Accounts (to 2026-03-31) | |
| 19 Sep 2025 | Annual Report and Accounts (to 2025-03-31) | |
| 23 Sep 2024 | Annual Report and Accounts (to 2024-03-31) |
System1 Group PLC operates as a marketing decision-making platform that leverages behavioral science to enhance advertising effectiveness, brand growth, and innovation success. The company provides automated data products and detailed consultancy services for ad testing, innovation testing, and brand effectiveness tracking, primarily targeting large global brands. System1 conducts tests in 81 markets worldwide, with offices in major cities including London, New York, and Singapore, helping clients make informed creative decisions that drive business results.
| 27 Oct 2026 | 07:00:02 | Lapse of Brave Bison Offer and Notice of Results |
| 23 Oct 2026 | 17:20:00 | Form 8.3 - System1 Group - Bainsville Commercial |
| 21 Oct 2026 | 16:33:59 | Form 8.3 - System1 Group - Bainsville Commercial |
| 16 Oct 2026 | 17:26:48 | Form 8.3 - System1 Group - Bainsville Commercial |
| 7 Oct 2026 | Annual Report and Accounts (to 2026-03-31) | |
| 19 Sep 2025 | Annual Report and Accounts (to 2025-03-31) | |
| 23 Sep 2024 | Annual Report and Accounts (to 2024-03-31) |
System1 Group PLC operates as a marketing decision-making platform that leverages behavioral science to enhance advertising effectiveness, brand growth, and innovation success. The company provides automated data products and detailed consultancy services for ad testing, innovation testing, and brand effectiveness tracking, primarily targeting large global brands. System1 conducts tests in 81 markets worldwide, with offices in major cities including London, New York, and Singapore, helping clients make informed creative decisions that drive business results.
| 16 Oct 2026 | 15:15:01 | Posting of Shareholder Letter |
| 24 Sept 2026 |
| AIM movers: System1 upgrades forecast and ex-dividends |
| 14 Sept 2026 | Brave Bison raises System1 bid again to £47.5m |
| 28 Aug 2026 | System1 Group repeats rejection of Brave Bison offer |
| 26 Aug 2026 | Brave Bison doubles profits as it continues pursuit of rival |
| 26 Aug 2026 | AIM movers: Central Asia Metals profit trebles and Nexteq diversifies |
| 13 Jul 2026 | System1 rejects Brave Bison approach |
| 16 Oct 2026 | 15:15:01 | Posting of Shareholder Letter |
| 24 Sept 2026 |
| AIM movers: System1 upgrades forecast and ex-dividends |
| 14 Sept 2026 | Brave Bison raises System1 bid again to £47.5m |
| 28 Aug 2026 | System1 Group repeats rejection of Brave Bison offer |
| 26 Aug 2026 | Brave Bison doubles profits as it continues pursuit of rival |
| 26 Aug 2026 | AIM movers: Central Asia Metals profit trebles and Nexteq diversifies |
| 13 Jul 2026 | System1 rejects Brave Bison approach |
| Issuer | Mkt cap | 1Y |
|---|---|---|
| £4.43bn | +0.4% | |
| £141m | -0.2% | |
| £42m | — | |
SYS1System1 Group PLC | £41m | +0.3% |
| £25m | +0.3% | |
| £13m | -0.4% |
| Issuer | Mkt cap | 1Y |
|---|---|---|
| £4.43bn | +0.4% | |
| £141m | -0.2% | |
| £42m | — | |
SYS1System1 Group PLC | £41m | +0.3% |
| £25m | +0.3% | |
| £13m | -0.4% |
