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Rio TintoRTPPF 73 Net-Net Working Capital is $-32.60 as of Dec. 2025. GuruFocus rates RTPPF with a GF Score™ of 73/100 and a GF Value™ of $69.20 (Modestly Overvalued). The stock has 5 warning signs investors should review. Among 1,134 Metals & Mining companies, Rio Tinto ranks worse than 88183.33% on this metric.
In calculating the Net-Net Working Capital (NNWC), Benjamin Graham assumed that a company's accounts receivable is only worth 75% its value, its inventory is only worth 50% of its value, but its liabilities have to be paid in full. In addition, Graham believed that preferred stock belongs on the liability side of the balance sheet, not as part of capital and surplus. This is a conservative way of estimating the company's value.
Rio Tinto's Net-Net Working Capital for the quarter that ended in Dec. 2025 was $-32.60.
The industry rank for Rio Tinto's Net-Net Working Capital or its related term are showing as below:
RTPPF's Price-to-Net-Net-Working-Capital is not ranked *
in the Metals & Mining industry.
Industry Median: 6.97 * Ranked among companies with meaningful Price-to-Net-Net-Working-Capital only.
Rio Tinto (OTCPK:RTPPF) Net-Net Working Capital Explanation
One research study, covering the years 1970 through 1983 showed that portfolios picked at the beginning of each year, and held for one year, returned 29.4 percent, on average, over the 13-year period, compared to 11.5 percent for the S&P 500 Index. Other studies of Graham's strategy produced similar results.
Benjamin Graham looked for companies whose market values were less than two-thirds of their net-net value. They are collected under our Net-Net screener.
Rio Tinto Net-Net Working Capital Related Terms
Rio Tinto Net-Net Working Capital Historical Data
* Premium members only.
The historical data trend for Rio Tinto's Net-Net Working Capital can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Rio Tinto Net-Net Working Capital Competitor Comparison
For the Other Industrial Metals & Mining subindustry, Rio Tinto's Price-to-Net-Net-Working-Capital, along with its competitors' market caps and Price-to-Net-Net-Working-Capital data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Rio Tinto Price-to-Net-Net-Working-Capital vs Metals & Mining Industry
For the Metals & Mining industry and Basic Materials sector, Rio Tinto's Price-to-Net-Net-Working-Capital distribution charts can be found below:
* The bar in red indicates where Rio Tinto's Price-to-Net-Net-Working-Capital falls into.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
In calculating the Net-Net Working Capital (NNWC), Benjamin Graham assumed that a company's accounts receivable is only worth 75% its value, its inventory is only worth 50% of its value, but its liabilities have to be paid in full.
In addition, Graham believed that preferred stock belongs on the liability side of the balance sheet, not as part of capital and surplus. In "Security Analysis", preferred stock is dubbed "an imperfect creditorship position" that is best placed on the balance sheet alongside funded debt.
This is a conservative way of estimating the company's value.
What does a Net-Net Working Capital of $-32.60 mean?
Rio Tinto (RTPPF) has a Net-Net Working Capital of $-32.60 as of Dec. 2025. Ben Graham defined net-net working capital as the per-share sum of cash, 75% of receivables and 50% of inventory less total liabilities. View historical data on Rio Tinto According to the industry distribution chart, Rio Tinto ranks #999999 out of 1134 companies in the Metals & Mining industry.
Is Rio Tinto's Net-Net Working Capital too high?
Rio Tinto's current Net-Net Working Capital is $-32.60. Based on the distribution chart, Rio Tinto ranks #999999 out of 1134 companies in the Metals & Mining industry, which is in the bottom quartile relative to peers. Overall, Rio Tinto has a GF Score™ of 73/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Rio Tinto's Net-Net Working Capital compare to competitors?
According to the Metals & Mining industry distribution chart, Rio Tinto ranks #999999 out of 1134 companies for Net-Net Working Capital. This places Rio Tinto in the lower half of its industry. The industry median Net-Net Working Capital is 6.97. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Net-Net Working Capital for a Metals & Mining company?
The median Net-Net Working Capital among Metals & Mining companies is 6.97, based on 1,134 companies in the industry. Companies in the top quartile (top 25%) have a Net-Net Working Capital significantly above this median, while those in the bottom quartile fall well below. However, Net-Net Working Capital should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Net-Net Working Capital mean?
A high Net-Net Working Capital can signal that a stock is expensive relative to its fundamentals. Ben Graham defined net-net working capital as the per-share sum of cash, 75% of receivables and 50% of inventory less total liabilities. View historical data on Rio Tinto For the Metals & Mining industry, the median Net-Net Working Capital is 6.97 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Rio Tinto's current Net-Net Working Capital is $-32.60. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Rio Tinto stock overvalued right now?
Based on GuruFocus' analysis, Rio Tinto (RTPPF) is currently considered Modestly Overvalued. The stock's GF Value™ is $69.20, compared to a current price of $88.38 — trading 27.7% above its estimated fair value. The current Net-Net Working Capital is $-32.60. Rio Tinto's overall GF Score™ is 73/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Net-Net Working Capital calculated?
Net-Net Working Capital is calculated from a company's financial statements. For Rio Tinto (RTPPF), the current Net-Net Working Capital is $-32.60 as of Dec. 2025. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Rio Tinto (RTPPF) Overvalued in 2026?
Based on GuruFocus' analysis, Rio Tinto stock appears to be overvalued.
The current stock price of $88.38 is trading 27.7% above its estimated GF Value™ of $69.20.
GuruFocus considers Rio Tinto to be Modestly Overvalued.
Key valuation signals for RTPPF:
Net-Net Working Capital: $-32.60
GF Value™: $69.20 vs. price of $88.38 (27.7% above fair value)
No single metric tells the full story. See the RTPPF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Rio Tinto is a global diversified miner. Iron ore is its major commodity, with lesser contributions from copper and aluminum. Lithium, diamonds, gold, and industrial minerals are more minor contributors. The 1995 merger of RTZ and CRA, via a dual-listed structure, created the present-day company. The two operate as a single business entity, with shareholders in each company having equivalent economic and voting rights. Major assets included the Pilbara iron ore operations, a 30% stake in the Escondida copper mine, 66%-ownership of the Oyu Tolgoi copper mine in Mongolia, the Weipa and Gove bauxite mines in Australia, and six hydro-powered aluminum smelters in Canada.
73GF Score
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