How shorted is DIPLOMA PLC? GB0001826634
#187most shorted UK stockof 421 companies with disclosed positions, more shorted than 55%
- 5-day change
- +0.10
- 20-day change
- –
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Before 2026: the named era
Reconstructed from the frozen named register: the sum of individually disclosed positions of 0.5% or more in DIPLOMA PLC at each disclosure date, back to 6 Aug 2015. This is a lower bound and a different measure from today's aggregate above, because positions between 0.1% and 0.5% were reported to the FCA but never published with names, so the two series are charted separately and are not comparable point for point. See the methodology.
History
| Position date | Short % | Change |
|---|---|---|
| 8 Oct 2026 | 1.69% | −0.01 |
| 5 Oct 2026 | 1.70%ʳ | −0.31 |
| 1 Oct 2026 | 2.01% | +0.20 |
| 28 Sep 2026 | 1.81% | +0.11 |
| 24 Sep 2026 | 1.70% | +0.11 |
| 23 Sep 2026 | 1.59% | −0.10 |
| 22 Sep 2026 | 1.69% | +0.01 |
| 17 Sep 2026 | 1.68% | +0.09 |
| 16 Sep 2026 | 1.59% | +0.20 |
| 11 Sep 2026 | 1.39% | −0.34 |
| 9 Sep 2026 | 1.73% | +0.11 |
| 7 Sep 2026 | 1.62% | +0.20 |
| 2 Sep 2026 | 1.42% | −0.03 |
| 28 Aug 2026 | 1.45% | +0.67 |
| 13 Aug 2026 | 0.78% | +0.28 |
| 28 Jul 2026 | 0.50%ʳ | −0.38 |
| 29 Jun 2026 | 0.88% | – |
Newest first. Scroll inside the table for earlier dates, back to 29 Jun 2026.
ʳ figure revised by the FCA after first publication. See how revisions work.
About this data
- ISIN
- GB0001826634
- Reportable Shares List
- On the FCA's RSL since 13 Jul 2026.
- First seen in dataset
- 29 Jun 2026
We show regulatory short-position data only: no prices, no valuations, no recommendations.
Frequently asked questions
- How shorted is DIPLOMA PLC right now?
- 1.69% of DIPLOMA PLC's issued share capital was sold short as of 8 Oct 2026, per the FCA's aggregate net short position publication. That makes it the 187th most shorted UK stock, out of 421 companies with disclosed positions.
- What is DIPLOMA PLC's short interest?
- 1.69% of issued share capital as of 8 Oct 2026. "Short interest" is the US term; the FCA publishes the aggregate net short position, the sum of every disclosed position of 0.2% or more, so it is a lower bound on all short selling in the stock.
- What does this number include?
- It is the sum of every individual net short position amounting to 0.2% or more of the company's issued share capital, as notified to the FCA. Smaller positions are not counted, so total short interest can be somewhat higher.
- Which funds are shorting DIPLOMA PLC?
- Since 13 July 2026 the FCA no longer publishes position-holder names, only the aggregate per company. Under the old regime, individual funds with positions of 0.5% or more were named publicly.
- How often is this updated?
- The FCA publishes every working day around midday, two working days after the position date. We ingest each publication the same day and re-check recent days for corrections.