Enphase EnergyWBO:ENPH -1.25%73 Days Inventory is 143.77 as of Mar. 2026, which is 256% above its 10-year median of 40.38. GuruFocus rates WBO:ENPH with a GF Score™ of 73/100 and a GF Value™ of €53.07 (Modestly Undervalued). The stock has 5 warning signs investors should review. Among 980 Semiconductors companies, Enphase Energy ranks better than 55.61% on this metric.
Days Inventory is also known as Days Sales of Inventory (DSI). Enphase Energy's Average Total Inventories for the
three
months ended in Mar. 2026 was €249 Mil. Enphase Energy's Cost of Goods Sold for the
three
months ended in Mar. 2026 was €158 Mil.
Hence, Enphase Energy's Days Inventory for the
three
months ended in Mar. 2026 was 143.77.
The historical rank and industry rank for Enphase Energy's Days Inventory or its related term are showing as below:
WBO:ENPH'
s Days Inventory Range Over the Past 10 Years
Min: 21.88 Med: 40.38 Max: 105.2
Current: 101.41
During the past 13 years, Enphase Energy's highest Days Inventory was 105.20. The lowest was 21.88. And the median was 40.38.
WBO:ENPH's Days Inventory is ranked better than 55.61% of 980
companies
in the Semiconductors industry
Industry Median: 111.885
vs WBO:ENPH: 101.41
Enphase Energy's Days Inventory
increased
from Mar. 2025 (76.36) to Mar. 2026 (143.77).
It might indicate that Enphase Energy's sales slowed down.
Inventory Turnover measures how fast the company turns over its inventory within a year.
Enphase Energy's Inventory Turnover for the
three
months ended in Mar. 2026 was 0.63.
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.
Enphase Energy's Inventory-to-Revenue for the
three
months ended in Mar. 2026 was 1.02.
Enphase Energy (WBO:ENPH) 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.
Enphase 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.
Enphase 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.
Enphase Energy Days Inventory Related Terms
Enphase Energy Days Inventory Historical Data
* Premium members only.
The historical data trend for Enphase 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.
WBO:ENPH vs RUN, SEDG, SHLS: Days Inventory Comparison
For the Solar subindustry, Enphase 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.
Enphase Energy Days Inventory vs Semiconductors Industry
For the Semiconductors industry and Technology sector, Enphase Energy's Days Inventory distribution charts can be found below:
* The bar in red indicates where Enphase 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.
Enphase Energy (WBO:ENPH) has a Days Inventory of 143.77 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Enphase Energy and its competitors. This is 256% above median its historical median of 40.38. Over the past decade, Enphase Energy's Days Inventory has ranged from 21.88 to 105.20. According to the industry distribution chart, Enphase Energy ranks #435 out of 980 companies in the Semiconductors industry, placing it in the top 44.4%.
Is Enphase Energy's Days Inventory too high?
Enphase Energy's current Days Inventory of 143.77 is 256% above median its 10-year median of 40.38. Over the past 10 years, this metric has ranged from a low of 21.88 to a high of 105.20. The Semiconductors industry median Days Inventory is 111.89. Enphase Energy's value of 143.77 is 28.5% above this industry median. Based on the distribution chart, Enphase Energy ranks #435 out of 980 companies in the Semiconductors industry, which is above the industry midpoint. Overall, Enphase Energy has a GF Score™ of 73/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Enphase Energy's Days Inventory compare to RUN and SEDG?
According to the Semiconductors industry distribution chart, Enphase Energy ranks #435 out of 980 companies for Days Inventory. This puts Enphase Energy in the upper half of its industry. The industry median Days Inventory is 111.89. Enphase Energy's value of 143.77 is 28.5% above this benchmark. Historically, Enphase Energy's own Days Inventory has ranged from 21.88 to 105.20 over the past decade. While the company's 10-year median is 40.38 vs. the industry median of 111.89, Enphase 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 a Semiconductors company?
The median Days Inventory among Semiconductors companies is 111.89, based on 980 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. Enphase Energy's current Days Inventory of 143.77 is 28.5% 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 Enphase Energy and its competitors. For the Semiconductors industry, the median Days Inventory is 111.89 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Enphase Energy's current Days Inventory is 143.77, which is 256% above median its own 10-year median of 40.38. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Enphase Energy stock overvalued right now?
Based on GuruFocus' analysis, Enphase Energy (WBO:ENPH) is currently considered Modestly Undervalued. The stock's GF Value™ is €53.07, compared to a current price of €39.79 — trading 25% below its estimated fair value. The current Days Inventory is 143.77, which is 256% above median its 10-year median of 40.38 and 28.5% above the Semiconductors industry median of 111.89. Enphase Energy'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 Days Inventory calculated?
Days Inventory is calculated from a company's financial statements. For Enphase Energy (WBO:ENPH), the current Days Inventory is 143.77 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 Enphase Energy (WBO:ENPH) Overvalued in 2026?
Based on GuruFocus' analysis, Enphase Energy stock appears to be undervalued.
The current stock price of €39.79 is trading 25% below its estimated GF Value™ of €53.07.
GuruFocus considers Enphase Energy to be Modestly Undervalued.
Key valuation signals for WBO:ENPH:
Days Inventory: 143.77 (256% above median its 10-year median of 40.38)
GF Value™: €53.07 vs. price of €39.79 (25% below fair value)
Industry Position: 28.5% above the Semiconductors median (#435 of 980)
No single metric tells the full story. See the WBO:ENPH stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Enphase Energy is a global energy technology company. It delivers smart, easy-to-use solutions that manage solar generation, storage, and communication on one platform. The company's microinverter technology primarily serves the rooftop solar market and produces a fully integrated solar-plus-storage solution. Enphase derives a majority of revenue from the United States.
73GF Score
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