Research memoWest Pharmaceutical Services, Inc. (WST) · NYSEMemo of October 21, 2026By Olivier Lachance

West stock forecast 2027–2029

MyStockButler's October 2026 analysis: West's weighted forecast reaches $406.00 in October 2027; the base case carries 55% probability. It hinges on sustained HVP growth and stronger utilization.

392.165
Share price today, USD
451.57 (+16 %)
Weighted scenario, October 2029
1.6%
Real free cash flow yield
39.1x
P/E, next 12 months
Read the full West memoYour first S&P 500 report is free · no card
Every number traced to West's filings8 chapters · 17,189 words218 sources cited

Where could West's shares be by 2029?

It reaches $426.22 in October 2028, a 9% total return. By October 2029, it reaches $451.57, a 16% total return. The last-date bear-to-bull range is $250.08 to $679.99. The base case receives 55% probability, against 25% for bear and 20% for bull.

West share price scenarios for October 2029: bear $250.08, base $460.09, bull $679.99
What the shares could be worthUSD per share at each date; in brackets the return since today's 392.17, dividends included
CaseProbabilityOctober 2027October 2028October 2029
Bear25 %300.04 (-23 %)264.94 (-32 %)250.08 (-36 %)
Base55 %419.99 (+7 %)439.99 (+13 %)460.09 (+18 %)
Bull20 %499.95 (+28 %)589.95 (+51 %)679.99 (+74 %)
Weighted100 %406.00 (+4 %)426.22 (+9 %)451.57 (+16 %)

What must go right for West, and what could go wrong?

The base assumes revenue of $3,699 million initially and $3,976 million one year later. It reaches $4,274 million by 2029, with margins settling near 19%. The bear assumes roughly 3% annual revenue growth and margins falling from 16.5% to 15.5%. The bull assumes growth of about 12% initially and margins rising from 19.2% to 20.5%.

The base reflects H1 net income of $292.8 million, Q2 HVP organic growth of 18.4%, and the supplied next-twelve-month EPS estimate of $10.02573. The bear reflects destocking, customer concentration and underused capacity. The bull requires broader HVP and GLP-1 demand plus stronger utilization.

How much cash does West really make?

Across 2021–2025, cumulative free cash flow was approximately $1.93 billion, or approximately $1.80 billion after stock pay. Management’s 2026 plan described roughly 40% of capital spending as maintenance and 60% as growth investment, but that is a forecast rather than an audited historical split. The table follows operating cash, working capital, capital spending, free cash flow and the stock-pay adjustment.

Follow the money: real free cash flowUS$ millions
20252024202320222021
Cash from operations754.8653.4776.5724.0584.0
− Capital spending285.9377.0362.0284.6253.4
= Free cash flow468.9276.4414.5439.4330.6
− Stock pay23.818.723.323.737.5
= Real free cash flow445.1257.7391.2415.7293.1
Real free cash flow, % of revenue14.5%8.9%13.3%14.4%10.4%

What this means. Real free cash flow is lower because paying employees with shares uses no cash today but gives away part of the company.

What does an investor pay for West today?

The forward P/E is lower because earnings are expected to rise, not because the shares became cheaper. West traded at 50.2 times trailing earnings and 39.1 times expected earnings on October 21, 2026, implying roughly 28% earnings growth if the measures use the same accounting basis. That comparison fails if trailing profit is GAAP while forecast profit is adjusted: in the second quarter of 2026, West reported diluted EPS of $2.15 and adjusted EPS of $2.37.

What an investor pays todayUS$ millions
Today (Oct 21, 2026)
Share price392.165
Market value (calculated)27,598.9
Enterprise value (calculated)27,370.4
P/E, last 12 months (calculated)50.2x
P/E, next 12 months (calculated)39.1x
Free cash flow yield (calculated)1.7%

What this means. The price-to-earnings ratio for the next 12 months uses analysts’ predicted profit, so it may be wrong if the company earns more or less than expected.

From the full memo · 1. The business

West Pharmaceutical Services sells the parts, systems, and know-how that keep injectable medicines contained, clean, and deliverable. A dollar reaches West mainly from drug and device manufacturers, then leaves through materials, labor, factories, and the cost of maintaining a qualified production system.

Continue reading, free
Your first S&P 500 report is free · no card

Where these numbers come from

More on West

West dividendWest earningsAuf Deutsch

Its rivals

BD (BDX)

Browse

All stocksS&P 500 companiesCompanies WBloomberg Terminal alternatives
The full West memoYour first S&P 500 report is free
Read it