With ocean freight rates collapsing in early 2025—and General Rate Increases (GRIs) returning in March—shippers are once again being forced to rethink their contract strategies. How do you protect against cost spikes, take advantage of market dips, and still secure reliable space? The answer lies in smart contract diversification.
This guide breaks down the three main types of ocean freight contracts—fixed, spot, and index-linked—and shows when to use each for cost savings, stability, or agility.
What is a Fixed-Rate Ocean Freight Contract?
A fixed-rate contract is an agreement where the shipper and carrier agree on a set rate (often per FEU or TEU) for a defined period, usually 3, 6, or 12 months. It often includes a Minimum Quantity Commitment (MQC), meaning the shipper agrees to move a certain volume or face penalties.
- Pros: Budget predictability, guaranteed space, reduced rate exposure
- Cons: Can’t benefit from falling spot market; may include volume penalties
Best for stable shipping lanes or high-volume, recurring flows.
What is a Spot Freight Rate?
Spot freight refers to booking ocean cargo at the current market rate—typically within 1–2 weeks of departure. Rates change frequently and reflect supply-demand dynamics, seasonal pressure, or sudden disruption.
- Pros: Take advantage of market lows, no long-term volume commitments
- Cons: No space guarantee, highly volatile, susceptible to last-minute rate hikes
Best for overflow shipments or when rates are historically low.
What is an Index-Linked Freight Contract?
An index-linked freight contract is a floating agreement where the rate changes periodically based on a public freight index (e.g., SCFI, FBX, WCI). Rates are adjusted monthly or quarterly, offering a transparent, market-responsive pricing model.
- Pros: Aligns with market trends, more flexibility than fixed, less exposure than spot
- Cons: Can be complex to manage, less cost certainty than fixed contracts
Best for shippers who want to stay close to the market without being fully exposed to spot volatility.
Understand Your Options: Contract Types at a Glance
| Contract Type | What It Is | Best Used For | Risk Level |
|---|---|---|---|
| Fixed-Rate | Pre-negotiated rate for 3–12 months with MQCs | High-volume, stable lanes | Low |
| Spot Market | Real-time market rates, booked per shipment | Overflow, unpredictable volumes | High |
| Index-Linked | Rates tied to a freight index (e.g., SCFI, FBX) | Balanced pricing with market tracking | Medium |
Each model serves a purpose. The key is to mix them based on your shipping profile, risk tolerance, and market timing goals.

How to Build a Contract Mix That Works
In 2025’s volatile ocean freight market, the smartest strategy isn’t picking one contract type—it’s combining them. A diversified contract portfolio gives you cost control, space reliability, and flexibility to shift with the market.
Here’s a sample mix many successful logistics teams are using:
| Contract Type | Suggested % of Volume | Strategic Role |
|---|---|---|
| Fixed-Rate | 40–60% | Base layer for cost stability and guaranteed space |
| Index-Linked | 20–30% | Market-responsive pricing with more predictability than spot |
| Spot | 10–30% | Flexible capacity for urgent or overflow shipments |
Use Case Scenarios by Industry
Different industries have different priorities when it comes to shipping. Here’s how various sectors typically approach freight contract strategy in a volatile market:
| Industry | Recommended Contract Mix | Why It Works |
|---|---|---|
| Retail / Consumer Goods | 50% Fixed / 30% Index / 20% Spot | Balances volume stability with flexibility for seasonal demand |
| High-Tech / Electronics | 30% Fixed / 40% Spot / 30% Air-Sea Hybrid | Maximizes responsiveness and speed for high-value goods |
| Automotive | 60% Fixed / 20% Index / 20% Spot | Supports JIT production with predictable inbound flows |
| Chemicals / Hazmat | 70% Fixed / 30% Index | Prioritizes safety and regulatory-compliant equipment availability |
| Industrial Manufacturing | 40% Fixed / 30% Index / 30% Spot | Optimizes for component variability and production lead times |
Common Freight Contract Mistakes to Avoid
- Overcommitting to Fixed Contracts: Can leave you stuck above market rates during downturns.
- Relying Too Heavily on Spot: Can cause service gaps during peak seasons or disruptions.
- Ignoring Index Options: Misses the opportunity to track with the market while limiting extreme risk.
- Single-Carrier Dependence: Increases vulnerability to blank sailings or capacity shifts.
- No Scenario Planning: Leaves you unprepared for sudden GRI surges, demand shocks, or port congestion.
Contract Strategy Checklist for 2025
- ✅ Segment your cargo flows by volatility, urgency, and volume.
- ✅ Allocate contract types by trade lane and product line—not just by carrier.
- ✅ Layer fixed contracts for stability, spot for flexibility, and index for balance.
- ✅ Review MQCs quarterly to avoid penalties or underutilization.
- ✅ Integrate visibility tools to manage contract execution and spot shifts in real time.
- ✅ Track GRI announcements and index trends to adjust procurement timing.
By approaching ocean freight contracts like a portfolio—diverse, dynamic, and data-informed—shippers can avoid overexposure and seize opportunities, regardless of what the 2025 market brings.
Why overpay for visibility? Tradlinx saves you 40% with transparent per–Master B/L pricing. Get 99% accuracy, 12 updates daily, and 80% ETA accuracy improvements, trusted by 83,000+ logistics teams and global leaders like Samsung and LG Chem.
Prefer email? Contact us directly at min.so@tradlinx.com (Americas), sondre.lyndon@tradlinx.com (Europe) or henry.jo@tradlinx.com (EMEA/Asia)
Further Reading
- Xeneta: When is the Best Time to Negotiate Ocean Freight Rates?
- FreightWaves: Will Ocean Rates Collapse?
- Xeneta: Beware a Potential Flaw in Index-Linked Ocean Container Shipping Contracts
- Xeneta: 3-6 Month Contracts – Preference or Necessity?
- Flexport: Four Winning Strategies for a Successful Transpacific Ocean Freight RFP 2023





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