Diageo -- How the Business Works

Diageo is the largest spirits company in the world by net sales (~$20.2B in FY2025), with an unmatched portfolio spanning scotch, beer/stout, tequila, vodka, Canadian whisky, rum, gin, liqueurs, and RTD. The company owns 11 of the top 20 premium spirits brands globally, including Johnnie Walker (est. 1820), Guinness (est. 1759), Smirnoff, Don Julio, Crown Royal, Tanqueray, and Baileys. DEO trades as a NYSE ADR (London primary listing as DGE). Revenue is generated across five regions: North America (~39%), Europe and Turkey (~24%), Asia Pacific (~18%), Latin America and Caribbean (~9%), and Africa (~9%). The core strategy is premiumization -- trading consumers up the price ladder within each category (e.g., JW Red to Black to Blue Label; Don Julio Blanco to Reposado to 1942). Diageo holds >30% market share in scotch, stout, Canadian whisky, and gin -- representing ~53% of total revenue in oligopoly positions. The key headwinds are GLP-1/moderation sentiment, anemic organic growth (+1.7% FY25, -4% H1 FY26 reported), and tariff risk on tequila and Canadian whisky imports to the US. FYE June 30, reports semi-annually. Composite score 5.1/10 (AVOID / Watchlist).

Price / Composite Score

$73.32 / 5.1

AVOID / Watchlist -- below 6

Oligopoly Revenue Share

~53%

>30% share in scotch, stout, Can. whisky, gin

FY2025 Net Sales

$20.2B

+1.7% organic | #1 global spirits

H1 FY2026 Trend

-4%

Reported net sales decline -- renewed pressure

How Diageo makes money -- spirits portfolio across five regions

The Diageo Business Model -- Revenue by Category (FY2025, $20.2B Total Net Sales)

Scotch

~$4.5B (22%)

Johnnie Walker, Buchanan, J&B, Black & White

~34% global share | "1 in 3 bottles" | -4% organic FY25

Beer (Guinness)

~$3.6B (18%)

Guinness -- #1 stout globally since 1759

~40% global stout share | +10% organic FY25 | 8 consecutive halves of DD growth

Tequila

~$2.6B (13%)

Don Julio, Casamigos

~24% global share | +18% FY25, then -17% H1 FY26

Vodka

~$1.6B (8%)

Smirnoff, Ketel One

~21% share | 4.2x #2 Absolut

Canadian Whisky

~$1.4B (7%)

Crown Royal

~45-50% share | dominant

Rum (5%)

~$1.0B

Captain Morgan | ~10-12% share (#2 behind Bacardi)

Liqueurs (5%)

~$1.0B

Baileys | ~25-30% share (#1 globally)

Gin (4%)

~$0.8B

Tanqueray + Gordon (#1 and #2-3 globally) | ~32% share

IMFL Whisky (4%)

~$0.8B

McDowell (India) | +10% organic FY25 | huge TAM

RTD + Other (9%)

~$1.8B

RTD +17% H1 FY26 | US whiskey, Chinese spirits

Value Chain -- From Distillery to Consumer

Raw Materials

Grain, agave, barley, botanicals

→

132+ Distilleries

Scotch, tequila, vodka, gin, rum

→

Maturation + Blending

Years of aging (scotch, tequila)

→

Route-to-Market

Owned + partner distribution

→

On-trade + Off-trade

Bars, restaurants, retail, e-comm

Premiumization Strategy -- Trading Consumers Up the Price Ladder

Ultra-Premium / Prestige

JW Blue Label, Don Julio 1942, Ketel One Botanical

Highest margin | aspirational pricing | growing share

Premium

JW Black, Don Julio Blanco, Tanqueray, Crown Royal

Core growth tier | category-defining brands

Standard / Value

JW Red, Smirnoff, Captain Morgan, Gordon Gin

Volume anchors | entry points for trade-up | under pressure

Premiumization is the core profit engine. Diageo systematically moves consumers up the price ladder within each spirit category. FY2025 delivered +1.7% organic net sales with both volume and price/mix positive. The company holds or grew market share in 65% of its total net sales in measured markets, including the US. Premium spirits categories are growing at ~6-7% CAGR (2025-2034) vs. low-single-digit overall spirits growth. However, H1 FY2026 showed renewed softness at -4% reported, with tequila swinging from +18% to -17% and broad-based deceleration across regions.

Revenue and category data from Diageo FY2025 and H1 FY2026 earnings via Daloopa (company_id=3179). FYE June 30, reports semi-annually.

Geographic segments -- five regions, North America dominant

Revenue by Region -- FY2025 ($20.2B) and H1 FY2026 Trend

North America

$7,973M (39%)

US and Canada | Flat YoY (+$65M FY25 vs FY24)

H1 FY26: $3,790M (down from $4,095M) | Tariff risk on tequila + Can. whisky

Europe & Turkey

$4,821M (24%)

UK, Ireland, Cont. Europe | Slight growth (+$17M)

Guinness #1 beer in GB, #1 TBA in Ireland

Asia Pacific

$3,635M (18%)

India, China, SE Asia | Decline (-$182M)

H1 FY26: $1,835M (down from $2,110M) | India IMFL +10%

LatAm

$1,847M (9%)

Flat (+$8M) | Buchanan strong

Africa

$1,834M (9%)

Slight growth (+$56M) | Guinness strong

Regional Detail -- FY2025 Net Sales vs. H1 FY2026 Run Rate

Region	FY25 Net Sales	% of Total	H1 FY25	H1 FY26	H1 YoY
North America	$7,973M	39%	$4,095M	$3,790M	-7.4%
Europe & Turkey	$4,821M	24%	Slight growth (+$17M FY25 vs FY24)
Asia Pacific	$3,635M	18%	$2,110M	$1,835M	-13.0%
Latin America & Caribbean	$1,847M	9%	Flat (+$8M FY25 vs FY24)
Africa	$1,834M	9%	Slight growth (+$56M FY25 vs FY24)

North America is 39% of revenue and showing the sharpest H1 FY2026 decline. The US is critical: ~45% of US-sold products must be made in Canada or Mexico (geographic origin requirements for tequila and Canadian whisky), creating direct tariff exposure at 25% rates. Asia Pacific is also decelerating (-13% H1 YoY), though India IMFL whisky remains a bright spot (+10% organic). The geographic diversification is a structural strength -- no single region dominates -- but H1 FY2026 data shows broad-based softness, not just a single-region problem.

Regional revenue data from Diageo FY2025 and H1 FY2026 earnings via Daloopa. Tariff data from H1 FY2025 earnings call.

Competitive position -- multi-category oligopoly

Oligopoly Gate Assessment: PASS -- >30% Share in Segments Representing ~53% of Revenue

Category	% of Revenue	Global Share	Key Brands	Competitive Structure
Scotch	22%	~34%	Johnnie Walker, Buchanan	Near-duopoly w/ Pernod (~13%)
Stout (Guinness)	18%	~40%	Guinness	Near-monopoly; no rival >15%
Canadian Whisky	7%	~45-50%	Crown Royal	Dominant; no rival near 15%
Gin	4%	~32%	Tanqueray, Gordon	#1 + #2 globally; Bacardi ~13%
Tequila	13%	~24%	Don Julio, Casamigos	#1 by RSV; Cuervo ~21%, Patron ~15%
Vodka	8%	~21%	Smirnoff, Ketel One	4.2x #2 (Absolut 5.1%); dominant but <30%

~53%

Revenue in >30% Share Categories

Scotch + stout + Can. whisky + gin

Irreplaceable

Switching Cost Assessment

Consumers order brands by name

Price Setter

Pricing Power Status

Sets price architecture in scotch globally

65%

Net Sales Holding/Gaining Share

In measured markets incl. US

Diageo operates in multi-category oligopoly positions with structural pricing power. A bar cannot substitute Johnnie Walker, Guinness, Don Julio, or Tanqueray -- consumers ask for these brands by name. No single competitor covers scotch + tequila + vodka + gin + stout + rum + Canadian whisky. Geographic origin requirements (scotch must come from Scotland, tequila from Mexico) create natural barriers. Brand heritage spanning centuries (Guinness 1759, Johnnie Walker 1820) cannot be replicated. However, the total global spirits market is fragmented at the industry level (top 5 hold ~14% combined), meaning the oligopoly exists within categories, not across total spirits.

Market share data from Diageo earnings transcripts, Euromonitor, and IWSR. Oligopoly assessment from thematic analysis.

Growth drivers and headwinds -- Guinness momentum vs. spirits deceleration

Category Organic Growth -- FY2025 vs. H1 FY2026

Guinness

+10% / +8%

FY25 / H1 FY26 organic growth

8th consecutive half of DD growth | secular trend

IMFL / India

+10% / +4%

FY25 / H1 FY26 organic growth

Largest spirits market by volume | McDowell

RTD

+2% / +17%

FY25 / H1 FY26 organic growth

Accelerating | $40B TAM | +10%+ CAGR

Tequila

+18% / -17%

FY25 / H1 FY26 -- extreme volatility

Don Julio still #1 gainer | but category destocking

Scotch

-4% / +1%

FY25 / H1 FY26 -- stabilizing?

3 consecutive decline periods prior | 22% of sales

Strategic Initiatives

$625M

Accelerate Cost Savings

Over 3 years -- margin protection

4.42%

Dividend Yield

Income floor while waiting for recovery

~45%

US Sales From Canada/Mexico

Tariff exposure on origin-required products

Guinness is the genuine bright spot; core spirits categories are under pressure. Guinness has delivered 8 consecutive halves of double-digit organic growth -- a rare secular trend in beverages. India IMFL and RTD are also growing well. But the core spirits portfolio is struggling: scotch has been in organic decline for 3 consecutive periods (though showing signs of stabilization), tequila reversed sharply, and vodka/gin remain negative. The overall theme (global spirits) is growing only ~3-5% by volume, not the 10%+ needed for a higher thematic score. GLP-1 drugs and moderation trends are real secular headwinds -- "saving money was one of the top four reasons in their choice to moderate TBA consumption."

Organic growth data from Diageo FY2025 and H1 FY2026 earnings. Accelerate program and tariff data from earnings transcripts.

Key risks to the business model

Risk	Timeframe	Severity	Detail
GLP-1 / Moderation	Secular	High	GLP-1 drugs reduce alcohol cravings; moderation trend accelerating; TBA volumes flat to declining
US Tariffs (25%)	Near-term	High	~45% of US net sales must originate from Canada or Mexico; cannot relocate tequila or Canadian whisky production
Organic Growth Deceleration	Ongoing	High	H1 FY26 total net sales -4% to $10,460M; spirits -6% reported; tequila swung +18% to -17%
Scotch Secular Decline	Medium-term	Moderate	22% of revenue; organic decline in 3 of 4 recent periods (-10% FY24, -4% FY25); nascent stabilization (+1% H1 FY26)
Asia Pacific Weakness	Near-term	Moderate	H1 FY26 $1,835M vs $2,110M prior year (-13%); China macro headwinds persisting
Management Quality	Ongoing	Moderate	Management score 4/10; stock -37% from 52-week highs; execution under scrutiny

Risk assessment from Diageo earnings calls, H1 FY2025 and FY2025 transcripts, and thematic analysis. GLP-1 data from medical literature and industry research.