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STOCK COMPARISON

Mercialys vs Simon Property Group: Fair Value & Quality

Both stocks run through our valuation models. Here is how Mercialys (MERY) and Simon Property Group (SPG) compare, as of Sep 24, 2026.

As of Sep 24, 2026, Fair Value Calculator sees Simon Property Group as the less overvalued of the two: Mercialys trades at €10.34 versus a fair value of €4.09 (-60%), while Simon Property Group trades at $204 versus $112 (-45%).
Mercialys
MERY.PA · EUR · Real Estate
-60%
upside to fair value
overvalued
Price€10.34
Fair Value€4.09
Quality47/100
Simon Property Group
SPG · USD · Real Estate
-45%
upside to fair value
overvalued
Price$204
Fair Value$112
Quality57/100
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Head-to-head numbers

Green is the better side of a row, red the weaker one (for valuation multiples: lower = cheaper). Grey rows are for reference only and are not scored.

betterweakerfor reference, not scored

MercialysSimon Property Group
Valuation
28.7×P/E (TTM)14.9×
6.87×P/S (TTM)12.26×
2.09×P/B15.65×
17.2×EV/EBITDA22.2×
7.12×PEG8.74×
−60.4%Fair value upside−45.2%
9.7%Dividend yield4.2%
€1.00Dividend per share$8.65
Profitability
25%Operating margin43%
0.47×EBIT margin trend (5Y)1.17×
5%Return on equity114%
2%Return on assets6%
Growth
4%Revenue growth (YoY)19%
10.2%Avg. growth/yr (3Y)6.3%
6.2%Avg. growth/yr (5Y)6.7%
+0.5%Value creation/yr+10.0%
Balance & size
1.5×Interest coverage (EBIT/interest)3.3×
2.08×Debt / equity5.46×
$1BMarket cap$82B
mixedGrowth qualityhealthy

Simon Property Group leads: 7 to 9 metric wins.

n/a = 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.

Mercialysof which business quality 45 · market factors 51 Simon Property Groupof which business quality 54 · market factors 56
ProfitabilityMargins and returns on capital today
26
59
Quality GrowthAre margins and returns improving?
28
70
CashflowEarnings quality: real cash, not paper profit
62
77
Fin. StrengthBalance sheet, leverage, solvency risk
25
9
InvestmentDisciplined investing over empire-building
63
35
Low VolatilityCalm price path (market factor)
83
63
MomentumPrice trend over the last 3–12 months (market factor)
40
52
52W MomentumDistance to the 52-week high (market factor)
34
53
Net IssuanceShare count: buybacks or dilution?
79
83

What the models say

How far the median fair value (base case) per model family sits from the current price, in percent. The amount in the currency of the trading venue is shown underneath.

above the price, more than 15% above close to the price, 85% to 115% of the price below the price, more than 15% below

Model familyMercialysPrice €10.34Simon Property GroupPrice $204
DCF Models-68%below the price€3.34-31%below the price$142
Dividend Discount+29%above the price€13.39-29%below the price$144
Multiples-40%below the price€6.17-38%below the price$128
Asset-Based-59%below the price€4.26-95%below the price$10.76
Growth DCF-73%below the price€2.77-50%below the price$102
Economic Profit-53%below the price€4.83-55%below the price$92.53
Minimum-73%below the price€2.77-95%below the price$10.76
Maximum+29%above the price€13.39-29%below the price$144
Median-56%below the price€4.55-44%below the price$115
Geometric mean-52%below the price€5.00-61%below the price$80.20

Minimum, maximum, median and geometric mean refer to the family values in this table. Geometric because deviations are ratios: half the price and twice the price average to 100%, not 125%.

Mercialys: 12 of 16 models see the stock below the current price.

Simon Property Group: 16 of 16 models see the stock below the current price.

Scenario ranges

From our cautious bear scenario to the optimistic bull scenario. The white tick is the current price (value above it), the green tick the fair value (value below it): if the price sits left of the fair value, there is room to rise.

Mercialys
Price €10.34
Fair Value €4.09
Bear €4.09Bull €7.71
Simon Property Group
Price $204
Fair Value $112
Bear $61.87Bull $194

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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.

Mercialys · Real Estate

Quality score47 · below median
Fair value upside-60% · bottom 25%

Simon Property Group · Real Estate

Quality score57 · above median
Fair value upside-45% · bottom 25%

Bottom line

As of Sep 24, 2026, Fair Value Calculator sees Simon Property Group as the less overvalued of the two: Mercialys trades at €10.34 versus a fair value of €4.09 (-60%), while Simon Property Group trades at $204 versus $112 (-45%).

Simon Property Group has the higher quality score (57/100).

Open Simon Property Group live analysis →

More comparisons

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A model-based valuation snapshot from 26 models. Values change with price and fundamentals; the date shown above applies.