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STOCK COMPARISON

PT Amman Mineral Internasional vs Perpetua Resources: Fair Value & Quality

Both stocks run through our valuation models. Here is how PT Amman Mineral Internasional (AMMN) and Perpetua Resources (PPTA) compare, as of Sep 5, 2026.

As of Sep 5, 2026, Fair Value Calculator sees PT Amman Mineral Internasional as the less overvalued of the two: PT Amman Mineral Internasional trades at IDR 4,390 versus a fair value of IDR 1,021 (-77%), while Perpetua Resources trades at $25.05 versus $5.16 (-79%).
PT Amman Mineral Internasional
AMMN.JK · IDR · Materials
-77%
upside to fair value
overvalued
PriceIDR 4,390
Fair ValueIDR 1,021
Quality26/100
Perpetua Resources
PPTA · USD · Materials
-79%
upside to fair value
overvalued
Price$25.05
Fair Value$5.16
Quality35/100
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Head-to-head numbers

Green value = the better side for that row (for valuation multiples: lower = cheaper).

PT Amman Mineral InternasionalPerpetua Resources
Valuation
24.0×P/E (TTM)
9.58×P/S (TTM)
4.76×P/B3.77×
20.7×EV/EBITDA
−76.7%Fair value upside−79.4%
Profitability
39%Operating margin0%
1.38×EBIT margin trend (5Y)
10%Return on equity-38%
5%Return on assets-26%
Growth
379%Revenue growth (YoY)0%
-13.6%Avg. growth/yr (3Y)
12.7%Avg. growth/yr (5Y)
+0.9%Value creation/yr
Balance & size
1.7×Interest coverage (EBIT/interest)
1.10×Debt / equity0.01×
$25BMarket cap$3B
weakGrowth quality

PT Amman Mineral Internasional leads: 3 to 2 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.

PT Amman Mineral Internasionalof which business quality 25 · market factors 32 Perpetua Resourcesof which business quality 35 · market factors 44
ProfitabilityMargins and returns on capital today
25
0
Quality GrowthAre margins and returns improving?
5
54
CashflowEarnings quality: real cash, not paper profit
0
36
Fin. StrengthBalance sheet, leverage, solvency risk
46
100
InvestmentDisciplined investing over empire-building
9
0
Low VolatilityCalm price path (market factor)
50
43
MomentumPrice trend over the last 3–12 months (market factor)
31
39
52W MomentumDistance to the 52-week high (market factor)
13
54
Net IssuanceBuybacks instead of dilution
65
0

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 familyPT Amman Mineral InternasionalPrice IDR 4,390Perpetua ResourcesPrice $25.05
Earnings-Based-88%below the priceIDR 511n/a
Multiples-77%below the priceIDR 1,021n/a
Asset-Based-81%below the priceIDR 851-82%below the price$4.61
Economic Profit-83%below the priceIDR 766n/a
Growth Earnings-84%below the priceIDR 681n/a
Minimum-88%below the priceIDR 511-82%below the price$4.61
Maximum-77%below the priceIDR 1,021-82%below the price$4.61
Median-83%below the priceIDR 766-82%below the price$4.61
Geometric mean-83%below the priceIDR 746-82%below the price$4.61

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%.

PT Amman Mineral Internasional: 11 of 11 models see the stock below the current price.

Perpetua Resources: 1 of 1 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.

PT Amman Mineral Internasional
Bear IDR 766Fair Value IDR 1,021Bull IDR 1,277
IDR 4,390 = current price (white tick)
Perpetua Resources
Bear $3.41Fair Value $5.16Bull $6.45
$25.05 = 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.

PT Amman Mineral Internasional · Materials

Quality score26 · bottom 25%
Fair value upside-77% · bottom 25%

Perpetua Resources · Materials

Quality score35 · bottom 25%
Fair value upside-79% · bottom 25%

Bottom line

As of Sep 5, 2026, Fair Value Calculator sees PT Amman Mineral Internasional as the less overvalued of the two: PT Amman Mineral Internasional trades at IDR 4,390 versus a fair value of IDR 1,021 (-77%), while Perpetua Resources trades at $25.05 versus $5.16 (-79%).

Perpetua Resources has the higher quality score (35/100).

See the full 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.