Equity Brief · Energy2026-10-27
POS.L·Energy

Plexus Holdings plc

I · AI Analysis

The brief

Plexus Holdings designs and supplies wellhead equipment for oil and gas operations, with its flagship POS-GRIP technology used in surface and subsea applications [Yahoo Finance]. The company serves customers in the UK, US, Europe, and internationally, and also explores commercial applications for subsea wellhead systems [Yahoo Finance].

Plexus Holdings plc is a UK-based provider of specialized wellhead equipment and services for the oil and gas industry, employing approximately 40 people [Yahoo Finance]. The company faces severe financial distress with trailing-twelve-month revenue of just GBP 2.8M, a net loss exceeding 145% of revenue, and a market capitalization of GBP 5.0M [Yahoo Finance]. Its Health Score of 3.3/10, Altman Z-score of 1.1 (distress zone), and Piotroski Score of 3/9 all signal significant operational and financial risk [Sentinellis calculation].

The company is loss-making with collapsing revenue and deeply negative cash flow, placing its viability in question.

The brief AI analysisConfidence 4/10

Sentinellis health

Significant risks

3.3/10

7.5+ strong · 4.5–7.5 moderate · under 4.5 weak

Profitability

20% of score3.3/10
Net margin-145.3%· need ≥ 4.8%, the lower third of Energy in our libraryGross margin+48.8%

Returns on capital

7% of score0.0/10
ROIC—· no dataReturn on equity-29.1%· need > 12%

Growth & momentum

13% of score0.0/10
Revenue growth-58.2%· need ≥ 0%, the lower third of Energy in our libraryOperating margin trend—· no data

Balance sheet

40% of score5.0/10
Current ratio2.1xNet debt / EBITDA—· need < 3.0xInterest coverage-543.3x· need > 6.0xDebt / equity0.16

Cash generation

20% of score3.3/10
Free cash flowGBP -2.8M· need positiveCash vs reported profitGBP -703,000 vs GBP -3.3M

Value creation

no data
ROIC vs cost of capital—· no data

Sentinellis calculation from the published statements — not a score reported by any data source. Each category is scored on the checks that had data; missing inputs are excluded rather than counted as failures.

Market capitalisation

GBP 5.0M

Revenue (TTM)

GBP 2.8M

Explainers

How we read these numbers

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Revenue collapsed 58.2% in the latest reported period, indicating severe demand weakness or lost contracts in the oil and gas equipment market [Yahoo Finance].

1 of 5 risks in this report

Risks

5

Opportunities

3

Red flags

4

Leadership

3

11 more findings in the full report — free with any account.

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III · Related

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Produced 27 Oct 2026, 10:34 UTC

Figures come from company filings and market data. The Sentinellis health score and the wording attached to it are our interpretation of those figures, not numbers the company reported.

Not investment advice and not a recommendation to buy or sell. Sentinellis holds no positions in the companies it covers, takes no payment from issuers, and has no broker referral arrangements.

How every figure and score is calculated