Smiths Group PLC (SMIN) — Investment Research Note

Executive summary

Smiths Group is a UK-listed industrial engineering company that, following the CY2026 disposals of Smiths Interconnect (£1.3bn EV) and Smiths Detection (£2.0bn EV), is now a focused two-division business: John Crane (mechanical seals and aftermarket services for energy and process industries, 60% of revenue, 71% aftermarket) and Flex-Tek (engineered components for HVAC, aerospace and industrial thermal solutions, 40% of revenue). Across the period the group demonstrated consistent low-to-mid single digit organic growth, margin expansion from ~15% in FY21 to a 20% run-rate for continuing operations, and executed a landmark portfolio simplification delivering £3.3bn combined EV at attractive multiples (15.1x Interconnect EBITDA, 12.5x Detection EBITDA). The single most important valuation point today is that the residual "focused" Smiths business is being valued by the market broadly in line with peer industrial multiples, with the £2.5bn buyback programme (over 30% of shares at current price) providing the primary near-term EPS-accretion catalyst.

Fair value estimate

Fair value range: 2,300p – 2,700p per share (implied market cap £6.5bn – £7.6bn on ~285m shares mid-transition).

Methodology: Blended peer-multiple valuation using (a) EV/EBITDA and (b) P/E on FY27E EPS of the post-disposal group, cross-checked against the observed disposal multiples paid by CVC and Molex for the divested businesses.

Key assumptions:

• FY26 continuing revenue ~£1.86bn (mid-point of 3-4% organic guidance) with margin ~20% 2026-03 half-year
• FY27 continuing revenue growth 5-7% (medium-term target range), margin expanding toward 21-23% target, giving FY27 headline operating profit ~£420m and net income ~£300m 2026-03 half-year
• DRC and other bolt-ons contribute ~£15m operating profit
• Fair EV/EBITDA multiple of 13-15x (John Crane aftermarket quality warrants a premium to average industrials but below the 16.3x Detection multiple)
• Fair forward P/E of 18-22x on the reduced share count post the £2.5bn buyback programme

Current market cap of £7,554m equates to the upper end of the fair-value range. Absolute upside/downside: approximately -3% at midpoint — the stock is trading fair, with the successful transformation and capital return story largely priced in.

Sector context

Confirmed classification: Industrial Goods and Services (ICB Industrials). Post-disposals, the quality profile is above typical UK industrials given the John Crane installed-base moat and mid-70% aftermarket mix, but growth (5-7% medium term) is in line with sector norms. Balance sheet is materially stronger than sector average post the £3.3bn of disposal proceeds. Comparable listed peers include Spirax Group (industrial flow, aftermarket-heavy, higher multiple), Rotork (flow control, similar aftermarket dynamics) and IMI plc (fluid/motion control, closest business-mix comparator).

Investment thesis

• Portfolio simplification delivered at premium value, freeing capital for shareholders. The Interconnect and Detection disposals realised £3.3bn EV at ~15x and ~12.5x EBITDA respectively, ahead of market expectations, with net proceeds funding a £2.5bn share buyback programme (£1bn ongoing plus £1.5bn from Detection) plus continued dividend growth 2026-06 disposal, 2026-03 half-year. At current prices this reduces the share count by ~30%, mechanically accreting EPS.
• John Crane is a high-quality installed-base compounder. 71% aftermarket revenue, 23.2% operating margin, ROCE 25%, with a strong and expanding order book supporting H2 FY26 mid-single digit growth and mid-teens returns on capital 2026-03 half-year. Long-tail exposure to energy transition (CCUS, hydrogen, geothermal) provides structural growth optionality.
• Flex-Tek Thermal Solutions has selective AI-adjacent exposure via data-centre back-up power. The £164m DRC Heat Transfer acquisition (completed April 2026, 10x EBITDA) directly targets cooling for data-centre back-up generators; Wattco (electric heating) and existing electrification exposure add further, if modest, data-centre pull-through 2026-03 DRC, 2026-03 half-year.

Key risks

• US construction market weakness dragging Flex-Tek Construction (19% of revenue). HY26 organic decline of (5.8)% with second-half visibility still uncertain and dependent on mortgage rate moderation 2026-03 half-year.
• Middle East geopolitical exposure. ~7% of Smiths revenue (primarily John Crane) is derived from the Middle East region; conflict escalation could disrupt project timing (guidance explicitly excludes any such impact) 2026-03 half-year.
• Legacy asbestos litigation at John Crane, Inc. £174m discounted pre-tax provision (£132m post-tax) with ~21,000 open claims; cash outflow ~£8m in HY26 and provision subject to material revision if litigation environment shifts 2026-03 half-year.

Operating leverage

Smiths displays moderate industrial operating leverage, not the multiple-of-profit dynamic the investor's brief prioritises. John Crane's cost base is predominantly variable manufacturing labour and materials, though the ~70% aftermarket mix and global service network create meaningful contribution margins on incremental spare-parts and service revenue. Management explicitly cites "operating leverage" as one of four levers to move from the current 17.2% Group margin (FY26 continuing at 19.8%) toward the 21-23% medium-term target 2026-03 half-year. The Acceleration Plan delivers £30-35m annualised savings from FY27, and Smiths Excellence System projects contributed £8.6m in HY26. Under a 10-20% revenue upside surprise (say, energy capex acceleration lifting John Crane revenue by 15%), the drop-through on the incremental ~£80m of continuing revenue would likely yield ~£25-30m of incremental operating profit (~35% incremental margin), i.e. a ~10% uplift to operating profit — meaningful but nowhere near the "multiples of profit" outcome from a software or platform business. Cash conversion of 78% in HY26 (target: low-to-mid 90s) indicates typical industrial working capital intensity.

Value-trap signals

None identified. The business shows clear organic growth, executed a value-accretive disposal programme, has a strong balance sheet (1.2x net debt/EBITDA pre-Detection cash), and demonstrates a track record of guidance-meets/beats and margin expansion.

Earnings vs. expectations

Across the observed filings, Smiths has consistently met or beaten guidance. FY25 organic growth guidance was raised from 4-6% to 6-8% to "towards top end", ultimately delivering +11.6% 2025-05, 2025-09. HY26 organic growth of +4.0% was within the prior 4-6% FY26 guide; the guide was reset only to reflect the reclassification of Detection as discontinued, not because of underlying weakness 2026-03. Q1 FY26 was reported "in line with expectations" 2025-11. The pattern is one of consistent delivery and modest positive surprise, with management establishing credibility through the successful execution and value realisation of the January 2025 strategic separation programme.

Conviction

Conviction: 3 (moderate).

Supporting factors: (1) well-disclosed clean financials with explicit segment reporting for continuing vs discontinued operations; (2) recently-transacted disposal multiples provide external market anchors for peer-multiple triangulation; (3) consistent recent earnings delivery reduces forecast risk.

Limiting factors: (1) the business is mid-transition — final steady-state margin structure (21-23% target) is a management aspiration not yet demonstrated; (2) share count is a moving target given the £2.5bn programme spans through CY2027, adding sensitivity to timing/price assumptions.