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STOCK COMPARISON

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

Both stocks run through our valuation models. Here is how RUBIX Resources (RB6) and PT Amman Mineral Internasional (AMMN) compare, as of Aug 26, 2026.

As of Aug 26, 2026, Fair Value Calculator sees PT Amman Mineral Internasional as the less overvalued of the two: RUBIX Resources trades at A$0.14 versus a fair value of A$0.02 (-86%), while PT Amman Mineral Internasional trades at IDR 4,500 versus IDR 1,021 (-77%).
RUBIX Resources
RB6.AU · AUD · Materials
-86%
upside to fair value
overvalued
PriceA$0.14
Fair ValueA$0.02
Quality51/100
PT Amman Mineral Internasional
AMMN.JK · IDR · Materials
-77%
upside to fair value
overvalued
PriceIDR 4,500
Fair ValueIDR 1,021
Quality26/100
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Head-to-head numbers

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

RUBIX ResourcesPT Amman Mineral Internasional
Valuation
—P/E (TTM)24.0×
—P/S (TTM)9.58×
6.22×P/B4.76×
—EV/EBITDA20.7×
Profitability
0%Net margin21%
0%Operating margin39%
-217%Return on equity10%
-90%Return on assets5%
Growth
0%Revenue growth (YoY)379%
—Avg. growth/yr (3Y)-13.6%
—Avg. growth/yr (5Y)12.7%
Balance & size
—Debt / equity1.10×
$6MMarket cap$25B
weakGrowth qualityexpensive

PT Amman Mineral Internasional leads: 0 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.

RUBIX Resourcesof which business quality 51 · market factors 49 PT Amman Mineral Internasionalof which business quality 25 · market factors 33
ProfitabilityMargins and returns on capital today
0
25
Quality GrowthAre margins and returns improving?
76
5
CashflowEarnings quality: real cash, not paper profit
33
0
Fin. StrengthBalance sheet, leverage, solvency risk
100
46
InvestmentDisciplined investing over empire-building
100
9
Low VolatilityCalm price path (market factor)
46
50
MomentumPrice trend over the last 3–12 months (market factor)
38
33
52W MomentumDistance to the 52-week high (market factor)
70
14
Net IssuanceBuybacks instead of dilution
19
65

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.

RUBIX Resources

Asset-BasedA$0.01

1 of 1 models see the stock below the current price.

PT Amman Mineral Internasional

Earnings-BasedIDR 511
MultiplesIDR 1,021
Asset-BasedIDR 851
Economic ProfitIDR 766
Growth EarningsIDR 681

11 of 11 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.

RUBIX Resources
Bear A$0.01Fair Value A$0.02Bull A$0.02
A$0.14 = current price (white tick)
PT Amman Mineral Internasional
Bear IDR 766Fair Value IDR 1,021Bull IDR 1,277
IDR 4,500 = 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.

RUBIX Resources · Materials

Quality score51 · above median
Fair value upside-86% · bottom 25%

PT Amman Mineral Internasional · Materials

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

Bottom line

As of Aug 26, 2026, Fair Value Calculator sees PT Amman Mineral Internasional as the less overvalued of the two: RUBIX Resources trades at A$0.14 versus a fair value of A$0.02 (-86%), while PT Amman Mineral Internasional trades at IDR 4,500 versus IDR 1,021 (-77%).

RUBIX Resources has the higher quality score (51/100).

See the full analysis →
RUBIX Resources · PT Amman Mineral Internasional

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