2026 Prime Day just ended! Ocean freight rates are climbing again: How can sellers avoid being devoured by shipping costs in the second half?

While 2026 Prime Day sales reports are still being tallied and the payments haven't warmed up in bank accounts, seller groups are already filled with cries of despair — carriers' rate hike notices arrived faster than the review meetings.

"General rate increase of $300-500/40HQ on US West Coast routes," "Space released and instantly sold out," "Received notice of mid-July GRI (General Rate Increase)"... This familiar script mirrors previous years yet bites even tighter in 2026. For Amazon sellers, this is the first critical hurdle of the second half: if mishandled, profits painstakingly earned during Prime Day may end up entirely handed over to carriers en route.

1. Why do ocean freight rates "punctually" surge right after Prime Day?

This is no coincidence but the inevitable result of multiple forces converging in July.

1. Restocking rush collides with peak season preparation
Sellers who experienced explosive Prime Day sales urgently need rapid replenishment to avoid stockouts, while those who missed the event are initiating early inventory preparation for fall Prime Day and Black Friday. Cargo volumes spike in a short period, directly driving up freight rates from the demand side.

2. Carriers' habitual "blank sailings" to control capacity
After freight rates weakened in Q2 2026, carriers aiming to protect prices already forecast substantial capacity cuts on US West and East Coast routes in July. Rising blank sailing rates artificially tighten capacity, creating leverage for rate hikes — the core capital game at play.

3. The "scissors gap" between contract and spot rates
As previous long-term contracts gradually expired, many sellers shifted to the spot market betting on lower rates but got trapped in July. Carriers seized the chance to push spot rates higher, forcing sellers to accept elevated baseline pricing in new contract negotiations as rate hike notifications flooded in.

4. Geopolitical disruptions and port risk premiums
Normalized Red Sea diversions have already absorbed massive capacity, while the shadow of US East Coast dockworker labor negotiations persists. Some cargo owners panic-divert shipments to the US West Coast, further intensifying congestion and rate increases there.

2. Three "profit defense" strategies for sellers amid high freight costs

Facing entrenched high freight rates, don't expect them to drop soon. You must switch to "cost bottom-line mode" immediately.

1. Recalculate: strong sales don't guarantee strong profits
Right now, perform a deep SKU-level profit review incorporating the increased first-leg freight costs.Increase prices or liquidate: For bulky or marginally profitable products, if a 30% freight hike pushes them into losses, do not hesitate — raise prices immediately or leverage lingering post-event traffic to clear inventory quickly, recover funds, and free up storage capacity.

Cut losses decisively: Resolutely prune those "lose if shipped, break continuity if not" fringe SKUs. Replenishing during peak freight rates just locks that capital up at sea — completely pointless.

2. Multimodal logistics: from single channel to diversified transport

Mix fast and slow to level costs: For must-replenish hot sellers, use fast options like Matson or ZIM to protect rankings and can absorb higher rates; for large-volume routine restocking, decisively switch to standard ocean slow lines, even consider rail or truck-multimodal combinations. Though transit time extends 15-20 days, this drags down overall first-leg costs.

Leverage overseas warehouses: This is currently the most effective buffer. Ship bulk inventory via the most economical ocean freight to overseas warehouses, then transfer to FBA or fulfill orders when FBA stock nears depletion. This avoids high FBA low-inventory fees while minimizing the impact of peak freight rates.

3. Advanced moves: packaging slimming and category focus

Millimeter-level packaging optimization: Shaving 2 centimeters off an outer carton could squeeze dozens more boxes into a container, directly cutting per-unit shipping costs. Especially for small light items and bulky volumetric goods, obsessing over package dimensions and filler is the most direct pure-profit source during high-rate periods.

Shift toward "high value density" selection: For second-half product selection, favor high-price, compact items. A $100, 200-gram smart sensor withstands freight fluctuations far better than a $20, 2-kilogram plastic storage bin.

Seize the window period and take control of your own destiny

The end of 2026 Prime Day isn't the season's finish line — it's the starting gun for a new round of survival competition. The "gray rhino" of rising ocean freight charges annually, yet some sellers get trampled while others set up buffer zones early and navigate through safely.

Now, your task isn't to complain but to immediately open replenishment reports and profit calculators, setting logistics cost alerts to maximum vigilance. Reduce fuzzy "I feel it's time to restock" judgments; ensure every shipment bound for the ocean carries clear, calculable profit targets.

The second-half horn has sounded. Only those who stabilize costs can truly capture the peak season.