GRAIL (GRAL) Days Inventory: 27.50 (As of Mar. 2026) — 28% Below Median


GRAL GRAIL Inc GRAL
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What is GRAIL Days Inventory?

GRAIL GRAL -0.98% 12 Days Inventory is 27.50 as of Mar. 2026, which is 28% below its 10-year median of 38.11. GuruFocus rates GRAL with a GF Score™ of 12/100. The stock has 2 warning signs investors should review. Among 176 Medical Diagnostics & Research companies, GRAIL ranks better than 75.57% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). GRAIL's Average Total Inventories for the three months ended in Mar. 2026 was $16.6 Mil. GRAIL's Cost of Goods Sold for the three months ended in Mar. 2026 was $55.1 Mil. Hence, GRAIL's Days Inventory for the three months ended in Mar. 2026 was 27.50.

The historical rank and industry rank for GRAIL's Days Inventory or its related term are showing as below:

GRAL' s Days Inventory Range Over the Past 10 Years
Min: 30.15   Med: 38.11   Max: 41.92
Current: 30.85

During the past 6 years, GRAIL's highest Days Inventory was 41.92. The lowest was 30.15. And the median was 38.11.

GRAL's Days Inventory is ranked better than
75.57% of 176 companies
in the Medical Diagnostics & Research industry
Industry Median: 68.88 vs GRAL: 30.85

GRAIL's Days Inventory declined from Mar. 2025 (32.92) to Mar. 2026 (27.50).

Inventory Turnover measures how fast the company turns over its inventory within a year. GRAIL's Inventory Turnover for the three months ended in Mar. 2026 was 3.32.

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. GRAIL's Inventory-to-Revenue for the three months ended in Mar. 2026 was 0.41.


GRAIL  (NAS:GRAL) 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.

GRAIL'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.

GRAIL'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.


GRAIL Days Inventory Related Terms


GRAIL Days Inventory Historical Data

* Premium members only.

The historical data trend for GRAIL'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.

GRAIL Days Inventory Chart

GRAIL Annual Data
Trend Dec18 Dec19 Dec22 Dec23 Dec24 Dec25
Days Inventory
Get a 7-Day Free Trial 0.00 41.92 40.08 36.14 30.15

GRAIL Quarterly Data
Dec18 Dec19 Jun20 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Days Inventory Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 32.92 32.91 34.84 28.68 27.50

GRAL vs VCYT, ADPT, TWST: Days Inventory Comparison

For the Diagnostics & Research subindustry, GRAIL'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.


GRAIL Days Inventory vs Medical Diagnostics & Research Industry

For the Medical Diagnostics & Research industry and Healthcare sector, GRAIL's Days Inventory distribution charts can be found below:

* The bar in red indicates where GRAIL's Days Inventory falls into.


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GRAIL Days Inventory Calculation

Days Inventory indicates the number of days of goods in sales that a company has in the inventory.

GRAIL's Days Inventory for the fiscal year that ended in Dec. 2025 is calculated as

Days Inventory (A: Dec. 2025 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (A: Dec. 2024 ) + Total Inventories (A: Dec. 2025 )) / count ) / Cost of Goods Sold (A: Dec. 2025 )*Days in Period
=( (18.632 + 16.017) / 2 ) / 209.745*365
=17.3245 / 209.745*365
=30.15

GRAIL's Days Inventory for the quarter that ended in Mar. 2026 is calculated as:

Days Inventory (Q: Mar. 2026 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (Q: Dec. 2025 ) + Total Inventories (Q: Mar. 2026 )) / count ) / Cost of Goods Sold (Q: Mar. 2026 )*Days in Period
=( (16.017 + 17.194) / 2 ) / 55.092*365 / 4
=16.6055 / 55.092*365 / 4
=27.50

* 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.

Frequently Asked Questions Learn more about Days Inventory →
What does a Days Inventory of 27.50 mean?
GRAIL (GRAL) has a Days Inventory of 27.50 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on GRAIL and its competitors. This is 28% below median its historical median of 38.11. Over the past decade, GRAIL's Days Inventory has ranged from 30.15 to 41.92. According to the industry distribution chart, GRAIL ranks #43 out of 176 companies in the Medical Diagnostics & Research industry, placing it in the top 24.4%.
Is GRAIL's Days Inventory too high?
GRAIL's current Days Inventory of 27.50 is 28% below median its 10-year median of 38.11. Over the past 10 years, this metric has ranged from a low of 30.15 to a high of 41.92. The Medical Diagnostics & Research industry median Days Inventory is 68.88. GRAIL's value of 27.50 is 60.1% below this industry median. Based on the distribution chart, GRAIL ranks #43 out of 176 companies in the Medical Diagnostics & Research industry, which is in the top quartile — a strong position relative to peers. Overall, GRAIL has a GF Score™ of 12/100, reflecting its overall financial health beyond just this single metric.
How does GRAIL's Days Inventory compare to VCYT and ADPT?
According to the Medical Diagnostics & Research industry distribution chart, GRAIL ranks #43 out of 176 companies for Days Inventory. This places GRAIL in the top 24% of its industry — outperforming the majority of peers. The industry median Days Inventory is 68.88. GRAIL's value of 27.50 is 60.1% below this benchmark. Historically, GRAIL's own Days Inventory has ranged from 30.15 to 41.92 over the past decade. While the company's 10-year median is 38.11 vs. the industry median of 68.88, GRAIL 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 a Medical Diagnostics & Research company?
The median Days Inventory among Medical Diagnostics & Research companies is 68.88, based on 176 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. GRAIL's current Days Inventory of 27.50 is 60.1% 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 GRAIL and its competitors. For the Medical Diagnostics & Research industry, the median Days Inventory is 68.88 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. GRAIL's current Days Inventory is 27.50, which is 28% below median its own 10-year median of 38.11. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is GRAIL stock overvalued right now?
GRAIL (GRAL) has a current Days Inventory of 27.50. The current Days Inventory is 27.50, which is 28% below median its 10-year median of 38.11 and 60.1% below the Medical Diagnostics & Research industry median of 68.88. GRAIL's overall GF Score™ is 12/100 with 2 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 GRAIL (GRAL), the current Days Inventory is 27.50 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.

GRAIL Business Description

Other Exchanges NL0:Germany
Address 1525 O’Brien Drive, Menlo Park, CA, USA, 94025
GRAIL Inc is a healthcare company focused on developing technologies for early cancer detection. The company has developed a multi-cancer early detection blood test that has the ability to detect all types of cancer, across all stages. It operates in one reportable operating segment which provides multi-cancer early detection testing and service.
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