Diamondback EnergyXSWX:FANG 68 Days Inventory is 2.90 as of Mar. 2026, which is 50% below its 10-year median of 5.79. GuruFocus rates XSWX:FANG with a GF Score™ of 68/100 and a GF Value™ of CHF154.21. The stock has 6 warning signs investors should review. Among 685 Oil & Gas companies, Diamondback Energy ranks better than 91.97% on this metric.
The historical rank and industry rank for Diamondback Energy's Days Inventory or its related term are showing as below:
XSWX:FANG'
s Days Inventory Range Over the Past 10 Years
Min: 2.21 Med: 5.79 Max: 8.22
Current: 3.49
During the past 13 years, Diamondback Energy's highest Days Inventory was 8.22. The lowest was 2.21. And the median was 5.79.
XSWX:FANG's Days Inventory is ranked better than 91.97% of 685
companies
in the Oil & Gas industry
Industry Median: 31.01
vs XSWX:FANG: 3.49
Diamondback Energy's Days Inventory
declined
from Mar. 2025 (4.82) to Mar. 2026 (2.90).
Inventory Turnover measures how fast the company turns over its inventory within a year.
Diamondback Energy's Inventory Turnover for the
three
months ended in Mar. 2026 was 31.47.
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.
Diamondback Energy's Inventory-to-Revenue for the
three
months ended in Mar. 2026 was 0.02.
Diamondback Energy (XSWX:FANG) 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.
Diamondback Energy'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.
Diamondback Energy'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.
Diamondback Energy Days Inventory Related Terms
Diamondback Energy Days Inventory Historical Data
* Premium members only.
The historical data trend for Diamondback Energy'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.
For the Oil & Gas E&P subindustry, Diamondback Energy'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.
Diamondback Energy Days Inventory vs Oil & Gas Industry
For the Oil & Gas industry and Energy sector, Diamondback Energy's Days Inventory distribution charts can be found below:
* The bar in red indicates where Diamondback Energy's Days Inventory 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.
Diamondback Energy (XSWX:FANG) has a Days Inventory of 2.90 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Diamondback Energy and its competitors. This is 50% below median its historical median of 5.79. Over the past decade, Diamondback Energy's Days Inventory has ranged from 2.21 to 8.22. According to the industry distribution chart, Diamondback Energy ranks #55 out of 685 companies in the Oil & Gas industry, placing it in the top 8%.
Is Diamondback Energy's Days Inventory too high?
Diamondback Energy's current Days Inventory of 2.90 is 50% below median its 10-year median of 5.79. Over the past 10 years, this metric has ranged from a low of 2.21 to a high of 8.22. The Oil & Gas industry median Days Inventory is 31.01. Diamondback Energy's value of 2.90 is 90.6% below this industry median. Based on the distribution chart, Diamondback Energy ranks #55 out of 685 companies in the Oil & Gas industry, which is in the top quartile — a strong position relative to peers. Overall, Diamondback Energy has a GF Score™ of 68/100, reflecting its overall financial health beyond just this single metric.
How does Diamondback Energy's Days Inventory compare to ?
According to the Oil & Gas industry distribution chart, Diamondback Energy ranks #55 out of 685 companies for Days Inventory. This places Diamondback Energy in the top 8% of its industry — outperforming the majority of peers. The industry median Days Inventory is 31.01. Diamondback Energy's value of 2.90 is 90.6% below this benchmark. Historically, Diamondback Energy's own Days Inventory has ranged from 2.21 to 8.22 over the past decade. While the company's 10-year median is 5.79 vs. the industry median of 31.01, Diamondback Energy 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 Oil & Gas company?
The median Days Inventory among Oil & Gas companies is 31.01, based on 685 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. Diamondback Energy's current Days Inventory of 2.90 is 90.6% 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 Diamondback Energy and its competitors. For the Oil & Gas industry, the median Days Inventory is 31.01 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Diamondback Energy's current Days Inventory is 2.90, which is 50% below median its own 10-year median of 5.79. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Diamondback Energy stock overvalued right now?
Diamondback Energy (XSWX:FANG) has a current Days Inventory of 2.90. The stock's GF Value™ is CHF154.21, compared to a current price of CHF138.94 — trading 9.9% below its estimated fair value. The current Days Inventory is 2.90, which is 50% below median its 10-year median of 5.79 and 90.6% below the Oil & Gas industry median of 31.01. Diamondback Energy's overall GF Score™ is 68/100 with 6 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 Diamondback Energy (XSWX:FANG), the current Days Inventory is 2.90 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 Diamondback Energy (XSWX:FANG) Overvalued in 2026?
Based on GuruFocus' analysis, Diamondback Energy stock appears to be undervalued.
The current stock price of CHF138.94 is trading 9.9% below its estimated GF Value™ of CHF154.21.
Key valuation signals for XSWX:FANG:
Days Inventory: 2.90 (50% below median its 10-year median of 5.79)
GF Value™: CHF154.21 vs. price of CHF138.94 (9.9% below fair value)
Industry Position: 90.6% below the Oil & Gas median (#55 of 685)
No single metric tells the full story. See the XSWX:FANG stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Diamondback is a crude oil and natural gas exploration and production firm whose operations represent a pure-play in the US Permian Basin. The company went public in 2012 and has established itself as a top-tier independent producer through disciplined acquisition and operational excellence. The company's most transformational transaction occurred in September 2024 with the completion of its $26 billion merger with Endeavor Energy Resources, which added around 470,000 net acres and doubled Diamondback's total acreage position. Diamondback boasts an enviable position in the Midland sub-basin, with some of the lowest unit costs among its Permian peers.
68GF Score
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