Thesis

Street consensus, scenarios, merits, risks, and invalidation triggers

AI-assisted
Thesis Summary

GSK enters the second half of 2026 with resilient core performance, reaffirmed guidance and substantial late-stage pipeline activity. Q2 turnover grew 5% CER and core EPS grew 9% CER, while Specialty Medicines and Vaccines grew 14% and 8%, respectively. The investment case remains balanced: 62 clinical-stage assets, more than 20 planned Phase III starts and positive bepirovirsen data support durable growth, but the discontinued camlipixant programme, a £1.3 billion related impairment, execution demands from the R&D acceleration programme and the 2028-2030 dolutegravir loss-of-exclusivity period constrain conviction. GSK's issuer-hosted analyst consensus forecasts 2031 turnover of £36.368 billion, below management's greater-than-£40 billion outlook, highlighting both potential upside and a meaningful execution gap.

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This section is the 12-month view: analyst targets and the probability-weighted scenarios built from them. The intrinsic value at the top of this page answers a different question: what the business is worth today.
Street view · analyst 12-month targets8 analysts · as of 18 Aug 2026
Low · most bearish analyst$47.00
Mean target$58.08
High · most bullish analyst$70.00
Our research · scenarios, merits, risks, and invalidation triggersResearch as of 2 Sep 2026
Scenarios · 12-month scenario targetsAnchored at research date
Bear CaseDownside scenario
$47.0023%

Turnover or core EPS falls below guidance as General Medicines declines, pipeline setbacks recur after the camlipixant failure, or savings fail to offset higher R&D and restructuring costs. Slower replacement of dolutegravir-based revenue during the 2028-2030 loss-of-exclusivity period would increase the risk that GSK misses both its margin objective and greater-than-£40 billion 2031 sales outlook.

Base CaseCentral scenario
$58.0855%
Matches the consensus mean

Turnover and core EPS remain within GSK's reaffirmed 2026 guidance ranges, Specialty Medicines and Vaccines offset continued pressure in General Medicines, and pipeline launches partly mitigate the approaching dolutegravir erosion. The issuer-hosted consensus supports continued earnings progression but forecasts 2031 turnover below management's outlook.

Bull CaseUpside scenario
$70.0022%

GSK performs near or above the upper end of 2026 guidance, converts its enlarged late-stage pipeline into approvals and commercial launches, and successfully accelerates growth through bepirovirsen, oncology assets and newer HIV regimens. Effective execution of the cost programme funds R&D while protecting margins through the dolutegravir loss-of-exclusivity period, allowing sales to approach or exceed management's greater-than-£40 billion 2031 outlook.

Scenarios are anchored to street consensus at the research date, with our probabilities and rationale.

Key Investment Merits
  • Q2 2026 core performance was resilient: turnover increased 5% CER, core operating profit 7% CER and core EPS 9% CER.
  • Growth is concentrated in higher-priority businesses, with Q2 Specialty Medicines sales up 14% and Vaccines sales up 8%.
  • Pipeline optionality is substantial: GSK reported 62 assets in clinical development, more than 20 expected Phase III starts in 2026 and positive pivotal bepirovirsen results.
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Key Investment Risks
  • Clinical-development risk remains material: GSK stopped further camlipixant development after Phase III results and recorded a £1.3 billion impairment primarily related to the asset.
  • Dolutegravir loss of exclusivity during 2028-2030 creates a replacement challenge; GSK's issuer-hosted consensus forecasts HIV revenue declining from £8.216 billion in 2026 to £4.638 billion in 2031.
  • The three-year acceleration programme targets £1.9 billion of annual savings by 2029 but carries £2.4 billion of programme costs while GSK simultaneously increases late-stage R&D investment.
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All scenarios are estimates and subject to change. Past performance is not indicative of future results.

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AI-assisted, source-linked narrative; figures from company filings (SEC EDGAR) and market data. Dates shown per section. Not investment advice. Terms of Use.