Both stocks run through our valuation models. Here is how Repsol S.A. (REP) and Exxon Mobil (XOM) compare, as of Aug 14, 2026.
As of Aug 14, 2026, Fair Value Calculator sees Repsol S.A. as the less overvalued of the two: Repsol S.A. trades at €26.79 versus a fair value of €19.07 (-29%), while Exxon Mobil trades at $159 versus $88.98 (-44%).
Repsol S.A.
REP.MC · EUR · Energy
-29%
upside to fair value
overvalued
Price€26.79
Fair Value€19.07
Quality57/100
Exxon Mobil
XOM · USD · Energy
-44%
upside to fair value
overvalued
Price$159
Fair Value$88.98
Quality56/100
Head-to-head numbers
Green value = the better side for that row (for valuation multiples: lower = cheaper).
Repsol S.A.Exxon Mobil
Valuation
10.8×P/E (TTM)24.6×
0.59×P/S (TTM)1.86×
1.16×P/B2.34×
7.3×EV/EBITDA11.3×
0.45×PEG1.20×
4.5%Dividend yield2.8%
€1.05Dividend per share$4.04
Profitability
5%Net margin8%
12%Operating margin6%
9%Return on equity10%
4%Return on assets4%
Growth
8%Revenue growth (YoY)3%
-7.5%Avg. growth/yr (3Y)-6.7%
10.5%Avg. growth/yr (5Y)12.6%
Balance & size
0.45×Debt / equity0.13×
$29BMarket cap$606B
mixedGrowth qualitymixed
Repsol S.A. leads: 8 to 6 metric wins.
Dash = not meaningfully computable, for example with negative equity.
Quality in detail
The quality score, broken down into the same factor families as on the stock page, 0 to 100 per family.
Repsol S.A.of which business quality 55 · market factors 90Exxon Mobilof which business quality 57 · market factors 75
ProfitabilityMargins and returns on capital today
37
43
Quality GrowthAre margins and returns improving?
42
33
CashflowEarnings quality: real cash, not paper profit
InvestmentDisciplined investing over empire-building
91
60
Low VolatilityCalm price path (market factor)
81
89
MomentumPrice trend over the last 3–12 months (market factor)
91
60
52W MomentumDistance to the 52-week high (market factor)
100
85
Net IssuanceBuybacks instead of dilution
95
77
What the models say
The median fair value (base case) per model family, each in the currency of its trading venue. Green = above the current price, red = below.
Repsol S.A.
DCF Models€13.79
Earnings-Based€17.55
Dividend Discount€13.86
Multiples€24.50
Asset-Based€15.43
Growth DCF€14.18
Economic Profit€16.52
Growth Earnings€19.07
22 of 24 models see the stock below the current price.
Exxon Mobil
DCF Models$83.38
Earnings-Based$76.97
Multiples$90.93
Asset-Based$41.93
Growth DCF$86.16
Economic Profit$62.60
Growth Earnings$77.86
22 of 22 models see the stock below the current price.
Scenario ranges
From our cautious bear case to the optimistic bull case. The white tick is the current price: left of fair value means room to run.
Repsol S.A.
Bear €13.35Fair Value €19.07Bull €20.44
€26.79 = current price (white tick)
Exxon Mobil
Bear $59.15Fair Value $88.98Bull $117
$159 = current price (white tick)
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Ranked within their sector
Where each stock sits within its sector peer group. Band = middle 50% of peers, tick = median, dot = this stock.
Repsol S.A. · Energy
Quality score57 · above median
Fair value upside-29% · below median
Exxon Mobil · Energy
Quality score56 · above median
Fair value upside-44% · below median
Bottom line
As of Aug 14, 2026, Fair Value Calculator sees Repsol S.A. as the less overvalued of the two: Repsol S.A. trades at €26.79 versus a fair value of €19.07 (-29%), while Exxon Mobil trades at $159 versus $88.98 (-44%).
Repsol S.A. has the higher quality score (57/100).
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A model-based valuation snapshot from 21 models. Values change with price and fundamentals; the date shown above applies.
