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Sono-TekSOTK +1.67%87 Days Inventory is 148.90 as of May. 2026, which is 29% above its 10-year median of 115.02. GuruFocus rates SOTK with a GF Score™ of 87/100 and a GF Value™ of $4.48 (Modestly Overvalued). The stock has 7 warning signs investors should review. Among 2,413 Hardware companies, Sono-Tek ranks worse than 72.03% on this metric.
Days Inventory is also known as Days Sales of Inventory (DSI). Sono-Tek's Average Total Inventories for the
three
months ended in May. 2026 was $3.99 Mil. Sono-Tek's Cost of Goods Sold for the
three
months ended in May. 2026 was $2.45 Mil.
Hence, Sono-Tek's Days Inventory for the
three
months ended in May. 2026 was 148.90.
The historical rank and industry rank for Sono-Tek's Days Inventory or its related term are showing as below:
SOTK'
s Days Inventory Range Over the Past 10 Years
Min: 86.11 Med: 115.02 Max: 164.38
Current: 145.21
During the past 13 years, Sono-Tek's highest Days Inventory was 164.38. The lowest was 86.11. And the median was 115.02.
SOTK's Days Inventory is ranked worse than 72.03% of 2413
companies
in the Hardware industry
Industry Median: 95.16
vs SOTK: 145.21
Sono-Tek's Days Inventory
declined
from May. 2025 (170.50) to May. 2026 (148.90).
Inventory Turnover measures how fast the company turns over its inventory within a year.
Sono-Tek's Inventory Turnover for the
three
months ended in May. 2026 was 0.61.
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.
Sono-Tek's Inventory-to-Revenue for the
three
months ended in May. 2026 was 0.71.
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.
Sono-Tek's Inventory Turnover for the
three
months ended in May. 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.
Sono-Tek's Inventory to Revenue for the
three
months ended in May. 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.
Sono-Tek Days Inventory Related Terms
Sono-Tek Days Inventory Historical Data
* Premium members only.
The historical data trend for Sono-Tek'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.
SOTK vs ARBE, ODYS, GNSS: Days Inventory Comparison
For the Scientific & Technical Instruments subindustry, Sono-Tek'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.
Sono-Tek Days Inventory vs Hardware Industry
For the Hardware industry and Technology sector, Sono-Tek's Days Inventory distribution charts can be found below:
* The bar in red indicates where Sono-Tek'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.
Sono-Tek (SOTK) has a Days Inventory of 148.90 as of May. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on Sono-Tek and its competitors. This is 29% above median its historical median of 115.02. Over the past decade, Sono-Tek's Days Inventory has ranged from 86.11 to 164.38. According to the industry distribution chart, Sono-Tek ranks #1738 out of 2413 companies in the Hardware industry, placing it in the top 72%.
Is Sono-Tek's Days Inventory too high?
Sono-Tek's current Days Inventory of 148.90 is 29% above median its 10-year median of 115.02. Over the past 10 years, this metric has ranged from a low of 86.11 to a high of 164.38. The Hardware industry median Days Inventory is 95.16. Sono-Tek's value of 148.90 is 56.5% above this industry median. Based on the distribution chart, Sono-Tek ranks #1738 out of 2413 companies in the Hardware industry, which is below the industry midpoint. Overall, Sono-Tek has a GF Score™ of 87/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Sono-Tek's Days Inventory compare to ARBE and ODYS?
According to the Hardware industry distribution chart, Sono-Tek ranks #1738 out of 2413 companies for Days Inventory. This places Sono-Tek in the lower half of its industry. The industry median Days Inventory is 95.16. Sono-Tek's value of 148.90 is 56.5% above this benchmark. Historically, Sono-Tek's own Days Inventory has ranged from 86.11 to 164.38 over the past decade. While the company's 10-year median is 115.02 vs. the industry median of 95.16, Sono-Tek 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 Hardware company?
The median Days Inventory among Hardware companies is 95.16, based on 2,413 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. Sono-Tek's current Days Inventory of 148.90 is 56.5% 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 Sono-Tek and its competitors. For the Hardware industry, the median Days Inventory is 95.16 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Sono-Tek's current Days Inventory is 148.90, which is 29% above median its own 10-year median of 115.02. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Sono-Tek stock overvalued right now?
Based on GuruFocus' analysis, Sono-Tek (SOTK) is currently considered Modestly Overvalued. The stock's GF Value™ is $4.48, compared to a current price of $5.50 — trading 22.8% above its estimated fair value. The current Days Inventory is 148.90, which is 29% above median its 10-year median of 115.02 and 56.5% above the Hardware industry median of 95.16. Sono-Tek's overall GF Score™ is 87/100 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 Sono-Tek (SOTK), the current Days Inventory is 148.90 as of May. 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 Sono-Tek (SOTK) Overvalued in 2026?
Based on GuruFocus' analysis, Sono-Tek stock appears to be overvalued.
The current stock price of $5.50 is trading 22.8% above its estimated GF Value™ of $4.48.
GuruFocus considers Sono-Tek to be Modestly Overvalued.
Key valuation signals for SOTK:
Days Inventory: 148.90 (29% above median its 10-year median of 115.02)
GF Value™: $4.48 vs. price of $5.50 (22.8% above fair value)
Industry Position: 56.5% above the Hardware median (#1738 of 2413)
No single metric tells the full story. See the SOTK stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Sono-Tek Corp designs and manufactures ultrasonic coating systems for applying precise, thin film coatings to add functional properties, protect or strengthen surfaces on parts and components for the microelectronics/electronics, alternative energy, medical, industrial, and emerging research & development/other markets. The company designs and manufacture custom-engineered ultrasonic coating systems incorporating its patented technology, in combination with applications engineering knowledge, to assist its customers in achieving their desired coating solutions.
87GF Score
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