UK short selling: week 34, 2026
From 17 Aug 2026 to 21 Aug 2026, 222 United Kingdom companies had disclosed short positions across 5 publication days. Changes are percentage points (pp) of issued share capital, between each company's last figure before the week and its last figure of the week, from official FCA data.
Biggest rises
| Company | Start | End | Change (pp) |
|---|---|---|---|
| CERES POWER HOLDINGS PLC | 10.35% | 11.61% | +1.26 |
| Trainline PLC | 3.84% | 4.92% | +1.08 |
| JOHNSON MATTHEY PLC | 1.31% | 2.13% | +0.82 |
| RIGHTMOVE PLC | 7.33% | 8.13% | +0.80 |
| Breedon Group Plc | 10.06% | 10.75% | +0.69 |
| FORTERRA PLC | 5.23% | 5.92% | +0.69 |
| COATS GROUP PLC | 2.59% | 3.19% | +0.60 |
| ASHTEAD TECHNOLOGY HOLDINGS PLC | 3.56% | 4.14% | +0.58 |
| HUNTING PLC | 1.85% | 2.40% | +0.55 |
| International Workplace Group plc | 5.07% | 5.59% | +0.52 |
Biggest falls
| Company | Start | End | Change (pp) |
|---|---|---|---|
| KAINOS GROUP PLC | 3.12% | 1.89% | −1.23 |
| NCC GROUP PLC | 4.90% | 3.87% | −1.03 |
| SENIOR PLC | 3.46% | 2.56% | −0.90 |
| WPP PLC | 6.48% | 5.60% | −0.88 |
| BYTES TECHNOLOGY GROUP PLC | 5.95% | 5.10% | −0.85 |
| Oxford Nanopore Technologies PLC | 5.20% | 4.41% | −0.79 |
| Diversified Energy Company | 7.47% | 6.77% | −0.70 |
| Sika AG | 2.66% | 2.07% | −0.59 |
| The Magnum Ice Cream Company N.V. | 4.78% | 4.20% | −0.58 |
| KINGFISHER PLC | 10.00% | 9.49% | −0.51 |
New disclosures
- JPMorgan Global Growth & Income PLC , first disclosed figure 0.23%
- THE SCOTTISH AMERICAN INVESTMENT COMPANY P L C , first disclosed figure 0.20%
Left the dataset
Last disclosed figure fell in this week. Leaving usually means the position dropped below the disclosure threshold, not that shorting stopped entirely.
- Vistry Group PLC , last figure 19.86% on 21 Aug 2026
- IBSTOCK PLC , last figure 17.81% on 21 Aug 2026
- OCADO GROUP PLC , last figure 11.67% on 18 Aug 2026
- Breedon Group Plc , last figure 10.75% on 21 Aug 2026
- R&S GROUP HOLDING AG , last figure 10.26% on 20 Aug 2026
- GENUIT GROUP PLC , last figure 10.02% on 20 Aug 2026
- Metlen Energy & Metals Plc , last figure 8.74% on 21 Aug 2026
- PENNON GROUP PLC , last figure 8.22% on 19 Aug 2026
- LAND SECURITIES GROUP PLC , last figure 8.14% on 20 Aug 2026
- RIGHTMOVE PLC , last figure 8.13% on 20 Aug 2026
Most shorted at week end
- Vistry Group PLC , 19.86%
- IBSTOCK PLC , 17.81%
- CAPITA PLC , 13.57%
- WH SMITH PLC , 11.69%
- OCADO GROUP PLC , 11.67%
Full table: most shorted UK stocks.