OPAL (OPAL Fuels) Days Inventory: 19.63 (As of Mar. 2026) — 18% Above Median


OPAL OPAL Fuels Inc OPAL
71 GF Score
Price $2.11
GF Value $3.98
Valuation Possible Value Trap
! 7 Warning Signs
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What is OPAL Fuels Days Inventory?

OPAL Fuels OPAL +1.44% 71 Days Inventory is 19.63 as of Mar. 2026, which is 18% above its 10-year median of 16.58. GuruFocus rates OPAL with a GF Score™ of 71/100 and a GF Value™ of $3.98 (Possible Value Trap). The stock has 7 warning signs investors should review. Among 450 Utilities - Regulated companies, OPAL Fuels ranks better than 57.33% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). OPAL Fuels's Average Total Inventories for the three months ended in Mar. 2026 was $11.6 Mil. OPAL Fuels's Cost of Goods Sold for the three months ended in Mar. 2026 was $53.8 Mil. Hence, OPAL Fuels's Days Inventory for the three months ended in Mar. 2026 was 19.63.

The historical rank and industry rank for OPAL Fuels's Days Inventory or its related term are showing as below:

OPAL' s Days Inventory Range Over the Past 10 Years
Min: 13.96   Med: 16.58   Max: 18.74
Current: 18.74

During the past 7 years, OPAL Fuels's highest Days Inventory was 18.74. The lowest was 13.96. And the median was 16.58.

OPAL's Days Inventory is ranked better than
57.33% of 450 companies
in the Utilities - Regulated industry
Industry Median: 22.535 vs OPAL: 18.74

OPAL Fuels's Days Inventory increased from Mar. 2025 (18.02) to Mar. 2026 (19.63). It might indicate that OPAL Fuels's sales slowed down.

Inventory Turnover measures how fast the company turns over its inventory within a year. OPAL Fuels's Inventory Turnover for the three months ended in Mar. 2026 was 4.65.

Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue. OPAL Fuels's Inventory-to-Revenue for the three months ended in Mar. 2026 was 0.16.


OPAL Fuels  (NAS:OPAL) Days Inventory Explanation

Days Inventory indicates the liquidity of the inventory. Generally, a lower Days Inventory is preferred as it indicates a shorter duration to clear off the inventory. An increase of the ratio may indicate the company's sales slowed. Similar ratios related to Days Inventory are:

1. Inventory Turnover measures how fast the company turns over its inventory within a year.

OPAL Fuels's Inventory Turnover for the three months ended in Mar. 2026 is calculated as

2. Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.

OPAL Fuels's Inventory to Revenue for the three months ended in Mar. 2026 is calculated as

* 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.


Be Aware

A lot of business are seasonable. It makes more sense to compare Days Inventory from the same period in the previous year instead of from the previous quarter.


OPAL Fuels Days Inventory Related Terms


OPAL Fuels Days Inventory Historical Data

* Premium members only.

The historical data trend for OPAL Fuels's Days Inventory 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.

OPAL Fuels Days Inventory Chart

OPAL Fuels Annual Data
Trend Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Days Inventory
Get a 7-Day Free Trial 14.89 13.96 17.37 18.71 15.98

OPAL Fuels Quarterly Data
Mar21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Days Inventory Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 18.02 20.69 19.76 15.20 19.63

OPAL vs RGCO, ATO, NI: Days Inventory Comparison

For the Utilities - Regulated Gas subindustry, OPAL Fuels's Days Inventory, along with its competitors' market caps and Days Inventory 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.


OPAL Fuels Days Inventory vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, OPAL Fuels's Days Inventory distribution charts can be found below:

* The bar in red indicates where OPAL Fuels's Days Inventory falls into.


OPAL
71GF Score
OPAL Fuels Inc OPAL
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
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OPAL Fuels Days Inventory Calculation

Days Inventory indicates the number of days of goods in sales that a company has in the inventory.

OPAL Fuels's Days Inventory for the fiscal year that ended in Dec. 2025 is calculated as

Days Inventory (A: Dec. 2025 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (A: Dec. 2024 ) + Total Inventories (A: Dec. 2025 )) / count ) / Cost of Goods Sold (A: Dec. 2025 )*Days in Period
=( (10.294 + 10.964) / 2 ) / 242.794*365
=10.629 / 242.794*365
=15.98

OPAL Fuels's Days Inventory for the quarter that ended in Mar. 2026 is calculated as:

Days Inventory (Q: Mar. 2026 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (Q: Dec. 2025 ) + Total Inventories (Q: Mar. 2026 )) / count ) / Cost of Goods Sold (Q: Mar. 2026 )*Days in Period
=( (10.964 + 12.201) / 2 ) / 53.849*365 / 4
=11.5825 / 53.849*365 / 4
=19.63

* 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.

Frequently Asked Questions Learn more about Days Inventory →
What does a Days Inventory of 19.63 mean?
OPAL Fuels (OPAL) has a Days Inventory of 19.63 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on OPAL Fuels and its competitors. This is 18% above median its historical median of 16.58. Over the past decade, OPAL Fuels' Days Inventory has ranged from 13.96 to 18.74. According to the industry distribution chart, OPAL Fuels ranks #192 out of 450 companies in the Utilities - Regulated industry, placing it in the top 42.7%.
Is OPAL Fuels' Days Inventory too high?
OPAL Fuels' current Days Inventory of 19.63 is 18% above median its 10-year median of 16.58. Over the past 10 years, this metric has ranged from a low of 13.96 to a high of 18.74. The Utilities - Regulated industry median Days Inventory is 22.54. OPAL Fuels' value of 19.63 is 12.9% below this industry median. Based on the distribution chart, OPAL Fuels ranks #192 out of 450 companies in the Utilities - Regulated industry, which is above the industry midpoint. Overall, OPAL Fuels has a GF Score™ of 71/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does OPAL Fuels' Days Inventory compare to RGCO and ATO?
According to the Utilities - Regulated industry distribution chart, OPAL Fuels ranks #192 out of 450 companies for Days Inventory. This puts OPAL Fuels in the upper half of its industry. The industry median Days Inventory is 22.54. OPAL Fuels' value of 19.63 is 12.9% below this benchmark. Historically, OPAL Fuels' own Days Inventory has ranged from 13.96 to 18.74 over the past decade. While the company's 10-year median is 16.58 vs. the industry median of 22.54, OPAL Fuels has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Days Inventory for an Utilities - Regulated company?
The median Days Inventory among Utilities - Regulated companies is 22.54, based on 450 companies in the industry. Companies in the top quartile (top 25%) have a Days Inventory significantly above this median, while those in the bottom quartile fall well below. However, Days Inventory should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. OPAL Fuels's current Days Inventory of 19.63 is 12.9% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Days Inventory mean?
A high Days Inventory can signal that a stock is expensive relative to its fundamentals. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on OPAL Fuels and its competitors. For the Utilities - Regulated industry, the median Days Inventory is 22.54 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. OPAL Fuels's current Days Inventory is 19.63, which is 18% above median its own 10-year median of 16.58. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is OPAL Fuels stock overvalued right now?
Based on GuruFocus' analysis, OPAL Fuels (OPAL) is currently considered Possible Value Trap. The stock's GF Value™ is $3.98, compared to a current price of $2.11 — trading 47.1% below its estimated fair value. The current Days Inventory is 19.63, which is 18% above median its 10-year median of 16.58 and 12.9% below the Utilities - Regulated industry median of 22.54. OPAL Fuels' overall GF Score™ is 71/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Days Inventory calculated?
Days Inventory is calculated from a company's financial statements. For OPAL Fuels (OPAL), the current Days Inventory is 19.63 as of Mar. 2026. 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 OPAL Fuels (OPAL) Overvalued in 2026?

Based on GuruFocus' analysis, OPAL Fuels stock appears to be undervalued. The current stock price of $2.11 is trading 47.1% below its estimated GF Value™ of $3.98. GuruFocus considers OPAL Fuels to be Possible Value Trap.

Key valuation signals for OPAL:

  • Days Inventory: 19.63 (18% above median its 10-year median of 16.58)
  • GF Value™: $3.98 vs. price of $2.11 (47.1% below fair value)
  • GF Score™: 71/100 with 7 warning signs
  • Industry Position: 12.9% below the Utilities - Regulated median (#192 of 450)

No single metric tells the full story. See the OPAL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


OPAL Fuels Business Description

Other Exchanges X3G:Germany
Address One North Lexington Avenue, Suite 1450, White Plains, NY, USA, 10601
OPAL Fuels Inc is a fully integrated leader in the capture and conversion of biogas into low-carbon-intensity renewable natural gas and Renewable Power. The company is also engaged in the marketing and distribution of RNG to heavy-duty trucking and other hard-to-decarbonize industrial sectors. The company designs, develops, constructs, operates, and services Fueling Stations for trucking fleets across the country that use natural gas to displace diesel as their transportation fuel. The company derives revenue from the sale of Renewable Power, design, development, construction, and service of Fueling Stations, and sales of RNG produced by OPAL and third parties as pipeline-quality natural gas. The Company has three operating segments: RNG Fuel, Fuel Station Services, and Renewable Power.
71GF Score

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Days Inventory is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$2.11
Price
$3.98
GF Value