Your inventory doesn't stay put. Neither should your coverage. Stock throughput insurance follows goods from supplier to warehouse to customer, helping close gaps at every stage of the supply chain.
Blog
October 07, 2026
Key Takeaways
- Stock throughput insurance is designed to cover inventory as it moves through multiple stages of the supply chain, including transit and storage.
- A stock throughput policy generally combines elements of ocean cargo, inland transit, and property or storage coverage into one policy.
- Coverage may extend to raw materials, work in progress, and finished goods, depending on the policy.
- Distributors, wholesalers, manufacturers, importers, exporters, retailers, and other businesses with significant inventory and transportation exposures may want to consider stock throughput insurance.
- Policy terms, limits, exclusions, deductibles, covered locations, and valuation methods can vary, making it important to evaluate coverage based on how a business’s goods actually move through its supply chain.
Inventory doesn’t always stay in one place. Raw materials may travel from a supplier to a manufacturing facility. Finished products may move to a warehouse before being shipped to a distributor, retailer, or customer. Some goods may pass through ports, distribution centers, third-party warehouses, and multiple modes of transportation along the way.
Each step can create opportunities for loss or damage.
Stock throughput insurance is designed to help businesses address this challenge by providing coverage that follows insured goods through multiple stages of the supply chain.
What Is Stock Throughput Insurance?
Stock throughput insurance is a type of marine-based insurance (a category that covers goods in transit, including by sea, land, or air) that can help cover a business’s inventory as it moves through the supply chain, including while goods are in transit and in storage.
Rather than relying on separate policies for different stages of a product’s journey, a stock throughput policy may combine coverage for ocean cargo, inland transit, and inventory stored at owned or third-party locations.
Depending on the policy, stock throughput insurance coverage can apply to:
- Raw materials
- Components
- Work in progress
- Finished goods
- Goods transported by land, air, or sea
- Inventory at warehouses or distribution centers
- Inventory held at certain third-party locations
The objective is continuity. Instead of one policy covering inventory in a warehouse and another covering it once it begins moving, stock throughput insurance can provide coverage for covered goods from their point of origin through their final destination.
How Does Stock Throughput Insurance Work?
Stock throughput insurance generally treats the movement and storage of inventory as parts of one connected exposure.
Consider a distributor that imports products from an overseas supplier. The goods may travel from the supplier to a port, cross the ocean by container ship, move by truck to a distribution center, remain in storage, and eventually be transported to a customer.
Without stock throughput coverage, different insurance policies may apply at different points along that journey. For example, cargo insurance may cover the ocean voyage while a commercial property policy may cover inventory once it reaches a warehouse.
A stock throughput policy may provide coverage for insured inventory throughout covered stages of the journey.
This approach may help reduce potential gaps or overlaps between separate property and cargo policies. It may also help simplify a business insurance program by bringing multiple inventory exposures under a single policy.
What Does Stock Throughput Insurance Generally Cover?
Coverage varies by insurer and policy, but stock throughput insurance generally covers direct physical loss or damage to covered goods during specified stages of transit and storage.
Depending on stock throughput insurance policy terms, covered causes of loss may include events such as:
- Fire
- Theft
- Certain transportation accidents
- Certain weather related or natural events
- Damage during loading or unloading
- Other covered causes of physical loss or damage
A stock throughput policy may also address inventory at multiple locations, including third-party warehouses or other facilities used along the supply chain.
However, stock throughput insurance does not cover every supply chain exposure. Exclusions and limitations apply and vary by policy. For example, policies may exclude or limit damages associated with certain processing, delay, deterioration, inadequate packaging, or other circumstances.
Businesses should review the specific policy terms to understand the scope of coverage, including applicable covered causes of loss, exclusions and limitations.
Who Might Benefit from Stock Throughput Insurance?
Stock throughput insurance may be worth considering for businesses that own or have an insurable interest in significant amounts of inventory that regularly moves between locations.
Wholesalers and Distributors
Wholesalers and distributors may consider stock throughput insurance where inventory is central to their operations. Goods may move from manufacturers or suppliers to distribution centers, between warehouses, and eventually to retailers or other customers.
Stock throughput insurance may provide coverage as inventory moves and is stored throughout the distribution process.
Manufacturers
Manufacturers may have raw materials arriving from multiple suppliers, work in progress at production facilities, and finished products moving to warehouses or customers.
A stock throughput policy may cover inventory through several of these stages. However, damage caused by manufacturing or processing itself may be excluded, depending on the policy.
Importers and Exporters
Businesses engaged in international trade may face exposures while goods travel by ocean, air, rail, or road and while shipments are temporarily stored at ports, warehouses, or other locations.
Bringing transit and storage exposures together may be worth considering when goods regularly cross borders or move through complex logistics networks.
Retailers
Retail businesses with significant inventory, multiple locations, distribution centers, or imported merchandise may also consider stock throughput coverage.
This may be particularly relevant when inventory moves frequently between warehouses, fulfillment centers, and retail locations.
Other Inventory-Intensive Businesses
Stock throughput insurance may also be worth considering for businesses in industries such as food and beverage, automotive, aviation, and other sectors where high-value or high-volume goods move regularly through the supply chain.
Stock throughput coverage considerations will vary based on a business’s inventory, transportation arrangements, locations, contractual responsibilities, and existing insurance program.
A stock throughput policy addresses the goods and their movement through the supply chain.
A stock throughput policy addresses the goods and their movement through the supply chain.
How Can Stock Throughput Insurance Address Industry Exposures?
Stock throughput insurance may provide continuity of coverage across different stages of the supply chain. Using separate cargo, transit, and property policies can create questions about which policy applies when goods move from one stage of the supply chain to another.
A stock throughput policy may help reduce those handoff points by providing coverage for insured goods across multiple stages, subject to policy terms and exclusions.
Other potential advantages can include:
- Simplified insurance administration: A single policy may address multiple inventory exposures.
- Coverage across locations: Policies may be structured to cover inventory at owned facilities and certain third-party locations.
- Coordination of coverage terms: Businesses may find it easier to manage consistent terms, conditions, and deductibles compared to maintaining several separate policies, though this will vary by insurer and program structure.
- Support for complex supply chains: Coverage can be structured around businesses whose goods move through multiple countries, transportation methods, warehouses, or distribution points.
- Management of inventory coverage: Businesses may rely on distributors, logistics providers, warehouses, or other third parties to insure goods in their possession, sometimes verifying that coverage through a certificate of insurance (COI). A stock throughput policy may give the business more direct involvement in how its own inventory is insured as it moves through the supply chain, rather than relying solely on another party’s insurance program.
These considerations will vary based on the structure of the policy and the business’s existing insurance program.
Stock Throughput Insurance vs. Cargo Insurance: What’s the Difference?
Cargo insurance generally covers on goods while they are being transported, while stock throughput insurance may extend coverage to both transit and storage.
For example, marine cargo insurance may provide coverage for an imported shipment while it travels from an overseas supplier to its destination. Once the goods leave transit and enter longer-term storage, another type of coverage may apply.
Stock throughput insurance may cover inventory during transportation as well as while it is stored at covered locations, subject to the applicable policy terms.
Stock Throughput Insurance vs. Commercial Property Insurance
Commercial property insurance may provide coverage for business property, including inventory, at insured locations. Coverage for inventory that is away from those locations or moving through the supply chain can differ from the coverage available through a stock throughput policy.
A stock throughput policy addresses the goods and their movement through the supply chain.
Businesses with significant amounts of inventory moving among suppliers, warehouses, distribution centers, and customers, may have exposures addressed by commercial property, cargo, inland transit, and stock throughput coverage.
What Might Businesses Consider When Evaluating Stock Throughput Insurance?
When evaluating stock throughput insurance, businesses might consider how their inventory moves through the supply chain.
Important considerations may include the types and values of goods being transported, annual shipment values, maximum inventory at individual locations, countries involved, transportation methods, warehouse arrangements, catastrophe exposures, loss history, and contractual responsibilities for goods.
Seasonal fluctuations may also be relevant. A distributor that carries substantially more inventory ahead of a busy season, for example, may have different coverage considerations that differ from those associated with its average inventory levels.
A business insurance professional can help review how goods move through the supply chain and evaluate how different types of coverage may apply.
Addressing Inventory Exposures Throughout the Supply Chain
For wholesalers, distributors, manufacturers, retailers, and other businesses that depend on a steady flow of goods, inventory risks don’t necessarily begin or end at the warehouse door.
Stock throughput insurance may provide coverage for eligible goods as they move between suppliers, transportation providers, warehouses, distribution centers, and customers, subject to applicable policy terms.
Acrisure business insurance advisors can help you evaluate your inventory and transportation exposures, review existing coverage, and explore available insurance solutions based on your business’s circumstances.
Frequently Asked Questions About Stock Throughput Insurance
Is stock throughput insurance the same as cargo insurance?
No. Cargo insurance primarily addresses goods while they are in transit. Stock throughput insurance can combine transit coverage with coverage for inventory stored at covered locations, which can provide more continuous coverage as goods move through the supply chain.
Can stock throughput insurance cover goods in a warehouse?
It depends. Stock throughput policies may cover insured inventory at owned warehouses, distribution centers, and certain third-party storage locations. Covered locations, applicable limits, and other terms and conditions depend on the policy.
Can stock throughput insurance cover raw materials?
It depends. Stock throughput policies may be structured to cover raw materials, work in progress, and finished goods as they move through the supply chain.
Do distributors typically consider stock throughput insurance?
Not every distributor has the same insurance needs. Stock throughput coverage may be worth considering for distributors with significant inventory, frequent shipments, imported or exported goods, multiple warehouses, or inventory stored with third parties.
How can stock throughput insurance apply to manufacturers?
Stock throughput insurance may provide coverage for eligible raw materials, work in progress, and finished products during covered stages of transit and storage. Policy exclusions may apply to damage caused by manufacturing or processing operations themselves.
Can stock throughput insurance cover international shipments?
Stock throughput policies may be structured to cover international as well as domestic movement of goods. Coverage depends on the applicable territories, transportation methods, locations, exclusions, limits and other policy terms.
