Alliant EnergyFRA:AY1 +0.27%76 Days Inventory is 37.46 as of Mar. 2026, which is 8% below its 10-year median of 40.74. GuruFocus rates FRA:AY1 with a GF Score™ of 76/100 and a GF Value™ of €58.04 (Modestly Overvalued). The stock has 10 warning signs investors should review. Among 453 Utilities - Regulated companies, Alliant Energy ranks worse than 71.3% on this metric.
The historical rank and industry rank for Alliant Energy's Days Inventory or its related term are showing as below:
FRA:AY1'
s Days Inventory Range Over the Past 10 Years
Min: 35.55 Med: 40.74 Max: 53.17
Current: 41.77
During the past 13 years, Alliant Energy's highest Days Inventory was 53.17. The lowest was 35.55. And the median was 40.74.
FRA:AY1's Days Inventory is ranked worse than 71.3% of 453
companies
in the Utilities - Regulated industry
Industry Median: 22.51
vs FRA:AY1: 41.77
Alliant Energy's Days Inventory
declined
from Mar. 2025 (41.25) to Mar. 2026 (37.46).
Inventory Turnover measures how fast the company turns over its inventory within a year.
Alliant Energy's Inventory Turnover for the
three
months ended in Mar. 2026 was 2.44.
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.
Alliant Energy's Inventory-to-Revenue for the
three
months ended in Mar. 2026 was 0.24.
Alliant Energy (FRA:AY1) 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.
Alliant 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.
Alliant 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.
Alliant Energy Days Inventory Related Terms
Alliant Energy Days Inventory Historical Data
* Premium members only.
The historical data trend for Alliant 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.
FRA:AY1 vs EVRG, CMS, PNW: Days Inventory Comparison
For the Utilities - Regulated Electric subindustry, Alliant 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.
Alliant Energy Days Inventory vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, Alliant Energy's Days Inventory distribution charts can be found below:
* The bar in red indicates where Alliant 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.
Alliant Energy (FRA:AY1) has a Days Inventory of 37.46 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Alliant Energy and its competitors. This is near median its historical median of 40.74. Over the past decade, Alliant Energy's Days Inventory has ranged from 35.55 to 53.17. According to the industry distribution chart, Alliant Energy ranks #323 out of 453 companies in the Utilities - Regulated industry, placing it in the top 71.3%.
Is Alliant Energy's Days Inventory too high?
Alliant Energy's current Days Inventory of 37.46 is near median its 10-year median of 40.74. Over the past 10 years, this metric has ranged from a low of 35.55 to a high of 53.17. The Utilities - Regulated industry median Days Inventory is 22.51. Alliant Energy's value of 37.46 is 66.4% above this industry median. Based on the distribution chart, Alliant Energy ranks #323 out of 453 companies in the Utilities - Regulated industry, which is below the industry midpoint. Overall, Alliant Energy has a GF Score™ of 76/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Alliant Energy's Days Inventory compare to EVRG and CMS?
According to the Utilities - Regulated industry distribution chart, Alliant Energy ranks #323 out of 453 companies for Days Inventory. This places Alliant Energy in the lower half of its industry. The industry median Days Inventory is 22.51. Alliant Energy's value of 37.46 is 66.4% above this benchmark. Historically, Alliant Energy's own Days Inventory has ranged from 35.55 to 53.17 over the past decade. While the company's 10-year median is 40.74 vs. the industry median of 22.51, Alliant Energy has consistently been above 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 22.51, based on 453 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. Alliant Energy's current Days Inventory of 37.46 is 66.4% above 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 Alliant Energy and its competitors. For the Utilities - Regulated industry, the median Days Inventory is 22.51 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Alliant Energy's current Days Inventory is 37.46, which is near median its own 10-year median of 40.74. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Alliant Energy stock overvalued right now?
Based on GuruFocus' analysis, Alliant Energy (FRA:AY1) is currently considered Modestly Overvalued. The stock's GF Value™ is €58.04, compared to a current price of €67.66 — trading 16.6% above its estimated fair value. The current Days Inventory is 37.46, which is near median its 10-year median of 40.74 and 66.4% above the Utilities - Regulated industry median of 22.51. Alliant Energy's overall GF Score™ is 76/100 with 10 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 Alliant Energy (FRA:AY1), the current Days Inventory is 37.46 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 Alliant Energy (FRA:AY1) Overvalued in 2026?
Based on GuruFocus' analysis, Alliant Energy stock appears to be overvalued.
The current stock price of €67.66 is trading 16.6% above its estimated GF Value™ of €58.04.
GuruFocus considers Alliant Energy to be Modestly Overvalued.
Key valuation signals for FRA:AY1:
Days Inventory: 37.46 (near median its 10-year median of 40.74)
GF Value™: €58.04 vs. price of €67.66 (16.6% above fair value)
Industry Position: 66.4% above the Utilities - Regulated median (#323 of 453)
No single metric tells the full story. See the FRA:AY1 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Alliant Energy is the parent of two regulated utilities, Interstate Power and Light and Wisconsin Power and Light. Together, IPL and WPL serve nearly 1 million electric customers and 425,000 natural gas-only customers. Both subsidiaries engage in the generation and distribution of electricity and the distribution and transportation of natural gas. Alliant also owns a 16% interest in American Transmission.
76GF Score
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