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GuruFocus has detected 7 Warning Signs with Norfolk Southern Corp $NSC.
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Norfolk Southern Corp (NYSE:NSC)
Days Inventory
30.68 (As of Mar. 2017)

Norfolk Southern Corp's average inventory for the three months ended in Mar. 2017 was $269 Mil. Norfolk Southern Corp's cost of goods sold for the three months ended in Mar. 2017 was $800 Mil. Hence, Norfolk Southern Corp's days inventory for the three months ended in Mar. 2017 was 30.68.

NSC' s Days Inventory Range Over the Past 10 Years
Min: 16.51   Max: 34.13
Current: 34.13

16.51
34.13

During the past 13 years, Norfolk Southern Corp's highest Days Inventory was 34.13. The lowest was 16.51. And the median was 19.44.

NSC's Days Inventory is ranked lower than
76% of the 633 Companies
in the Global Railroads industry.

( Industry Median: 10.84 vs. NSC: 34.13 )

Norfolk Southern Corp's days inventory declined from Mar. 2016 (37.03) to Mar. 2017 (30.68).

Inventory can be measured by Days Sales of Inventory (DSI). Norfolk Southern Corp's days sales of inventory (DSI) for the three months ended in Mar. 2017 was 9.53.

Inventory turnover measures how fast the company turns over its inventory within a year. Norfolk Southern Corp's inventory turnover for the three months ended in Mar. 2017 was 2.97.

Inventory to revenue ratio 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. Norfolk Southern Corp's inventory to revenue ratio for the three months ended in Mar. 2017 was 0.10.


Definition

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

Norfolk Southern Corp's Days Inventory for the fiscal year that ended in Dec. 2016 is calculated as

Days Inventory (A: Dec. 2016 )
=Average Inventory / COGS*Days in Period
=( (Inventory (A: Dec. 2015 ) + Inventory (A: Dec. 2016 )) / 2 ) / COGS (A: Dec. 2016 )*Days in Period
=( (271 + 257) / 2 ) / 3045*365
=264 / 3045*365
=31.65

Norfolk Southern Corp's Days Inventory for the quarter that ended in Mar. 2017 is calculated as:

Days Inventory (Q: Mar. 2017 )
=Average Inventory / COGS*Days in Period
=( (Inventory (Q: Dec. 2016 ) + Inventory (Q: Mar. 2017 )) / 2 ) / COGS (Q: Mar. 2017 )*Days in Period
=( (257 + 281) / 2 ) / 800*365 / 4
=269 / 800*365 / 4
=30.68

* All numbers are in millions except for per share data and ratio. All numbers are in their local exchange's currency.


Explanation

An increase of Days Inventory may indicate the company's sales slowed.

1. Inventory can be measured by Days Sales of Inventory (DSI).

Norfolk Southern Corp's Days Sales of Inventory for the three months ended in Mar. 2017 is calculated as

Days Sales of Inventory (DSI)=Average Inventory/Revenue*Days in Period
=269/2575*365 / 4
=9.53

2. Inventory Turnover measures how fast the company turns over its inventory within a year.

Norfolk Southern Corp's Inventory Turnover for the three months ended in Mar. 2017 is calculated as

3. 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.

Norfolk Southern Corp's Inventory to Revenue for the three months ended in Mar. 2017 is calculated as

* All numbers are in millions except for per share data and ratio. All numbers are in their local exchange's 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.


Related Terms

Cost of Goods Sold, Inventory, Revenue, Inventory Turnover, Inventory to Revenue


Historical Data

* All numbers are in millions except for per share data and ratio. All numbers are in their local exchange's currency.

Norfolk Southern Corp Annual Data

Dec07Dec08Dec09Dec10Dec11Dec12Dec13Dec14Dec15Dec16
DaysInventory 16.9516.5123.6018.3416.7319.2019.6819.9425.2731.65

Norfolk Southern Corp Quarterly Data

Dec14Mar15Jun15Sep15Dec15Mar16Jun16Sep16Dec16Mar17
DaysInventory 21.5924.6526.7928.2028.7537.0337.2836.6831.5130.68
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