InnospecIOSP -0.28%76 Days Inventory is 90.06 as of Mar. 2026, which is 4% above its 10-year median of 86.43. GuruFocus rates IOSP with a GF Score™ of 76/100 and a GF Value™ of $95.01 (Modestly Undervalued). The stock has 3 warning signs investors should review. Among 1,544 Chemicals companies, Innospec ranks worse than 58.68% on this metric.
Days Inventory is also known as Days Sales of Inventory (DSI). Innospec's Average Total Inventories for the
three
months ended in Mar. 2026 was $325 Mil. Innospec's Cost of Goods Sold for the
three
months ended in Mar. 2026 was $330 Mil.
Hence, Innospec's Days Inventory for the
three
months ended in Mar. 2026 was 90.06.
The historical rank and industry rank for Innospec's Days Inventory or its related term are showing as below:
IOSP'
s Days Inventory Range Over the Past 10 Years
Min: 77.48 Med: 86.43 Max: 110.51
Current: 92.58
During the past 13 years, Innospec's highest Days Inventory was 110.51. The lowest was 77.48. And the median was 86.43.
IOSP's Days Inventory is ranked worse than 58.68% of 1544
companies
in the Chemicals industry
Industry Median: 80.59
vs IOSP: 92.58
Innospec's Days Inventory
increased
from Mar. 2025 (89.08) to Mar. 2026 (90.06).
It might indicate that Innospec's sales slowed down.
Inventory Turnover measures how fast the company turns over its inventory within a year.
Innospec's Inventory Turnover for the
three
months ended in Mar. 2026 was 1.01.
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.
Innospec's Inventory-to-Revenue for the
three
months ended in Mar. 2026 was 0.72.
Innospec (NAS:IOSP) 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.
Innospec'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.
Innospec'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.
Innospec Days Inventory Related Terms
Innospec Days Inventory Historical Data
* Premium members only.
The historical data trend for Innospec'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.
IOSP vs NGVT, MTX, LWLG: Days Inventory Comparison
For the Specialty Chemicals subindustry, Innospec'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.
Innospec Days Inventory vs Chemicals Industry
For the Chemicals industry and Basic Materials sector, Innospec's Days Inventory distribution charts can be found below:
* The bar in red indicates where Innospec'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.
Innospec (IOSP) has a Days Inventory of 90.06 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Innospec and its competitors. This is near median its historical median of 86.43. Over the past decade, Innospec's Days Inventory has ranged from 77.48 to 110.51. According to the industry distribution chart, Innospec ranks #906 out of 1544 companies in the Chemicals industry, placing it in the top 58.7%.
Is Innospec's Days Inventory too high?
Innospec's current Days Inventory of 90.06 is near median its 10-year median of 86.43. Over the past 10 years, this metric has ranged from a low of 77.48 to a high of 110.51. The Chemicals industry median Days Inventory is 80.59. Innospec's value of 90.06 is 11.8% above this industry median. Based on the distribution chart, Innospec ranks #906 out of 1544 companies in the Chemicals industry, which is below the industry midpoint. Overall, Innospec has a GF Score™ of 76/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Innospec's Days Inventory compare to NGVT and MTX?
According to the Chemicals industry distribution chart, Innospec ranks #906 out of 1544 companies for Days Inventory. This places Innospec in the lower half of its industry. The industry median Days Inventory is 80.59. Innospec's value of 90.06 is 11.8% above this benchmark. Historically, Innospec's own Days Inventory has ranged from 77.48 to 110.51 over the past decade. While the company's 10-year median is 86.43 vs. the industry median of 80.59, Innospec 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 Chemicals company?
The median Days Inventory among Chemicals companies is 80.59, based on 1,544 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. Innospec's current Days Inventory of 90.06 is 11.8% 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 Innospec and its competitors. For the Chemicals industry, the median Days Inventory is 80.59 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Innospec's current Days Inventory is 90.06, which is near median its own 10-year median of 86.43. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Innospec stock overvalued right now?
Based on GuruFocus' analysis, Innospec (IOSP) is currently considered Modestly Undervalued. The stock's GF Value™ is $95.01, compared to a current price of $82.63 — trading 13% below its estimated fair value. The current Days Inventory is 90.06, which is near median its 10-year median of 86.43 and 11.8% above the Chemicals industry median of 80.59. Innospec's overall GF Score™ is 76/100 with 3 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 Innospec (IOSP), the current Days Inventory is 90.06 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 Innospec (IOSP) Overvalued in 2026?
Based on GuruFocus' analysis, Innospec stock appears to be undervalued.
The current stock price of $82.63 is trading 13% below its estimated GF Value™ of $95.01.
GuruFocus considers Innospec to be Modestly Undervalued.
Key valuation signals for IOSP:
Days Inventory: 90.06 (near median its 10-year median of 86.43)
GF Value™: $95.01 vs. price of $82.63 (13% below fair value)
Industry Position: 11.8% above the Chemicals median (#906 of 1544)
No single metric tells the full story. See the IOSP stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Innospec Inc manufactures and sells a variety of chemicals and fuel additives. The firm organizes itself into three segments based on product type. The Performance Chemicals segment that derives maximum revenue, provides technology-based solutions for its customers' processes or products in personal care, home care, agrochemical, construction, mining and other industrial markets. The Fuel Specialties segment develops, manufactures, blends, markets and supplies a range of specialty chemical products used as additives in diesel, jet, marine, fuel oil and other fuels. The Oilfield Services segment develops and markets chemical solutions for drilling, completion, production, DRA and oil and gas applications.
76GF Score
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