The Panama Canal will extend its Long-term Slot Allocation (LoTSA) programme to Panamax locks for the first time, offering 288 slots across 51 packages during the January 3–April 3, 2027 dry-season window alongside an existing neopanamax offering of 270 slots in 36 packages.

The expansion, announced by the Panama Canal Authority, runs the established neopanamax LoTSA in parallel with a new panamax pilot. Both will be allocated through sealed-bid competitions in November, giving shippers committed capacity ahead of the seasonally tight water period.

What does the new LoTSA structure offer?

• Neopanamax locks: 36 packages, 270 slots, split 165 northbound and 105 southbound
• Panamax locks: 51 packages, 288 slots, evenly distributed at roughly three transits per day
• Allocation mechanism: sealed-bid auction, November 2026
• Window: January 3 – April 3, 2027
• Remaining capacity continues to flow through the canal's standard reservation and auction channels

LoTSA does not displace the standard reservation system. After LoTSA blocks are absorbed, the ACP will continue to sell leftover transit slots through its day-to-day mechanisms.

Why is LoTSA expanding now?

The canal first rolled out long-term slot blocks for neopanamax locks in 2024, after the 2023–24 drought cut transits, eroded draft limits and forced carriers to compete for guaranteed passage. Demand for that certainty has intensified through 2025 as Middle East disruption diverts US energy and LPG tonnage via Panama, and as the ACP continues to juggle draft and transit restrictions tied to reservoir levels.

Spot-market signals have grown extreme. Splash reported neopanamax auction clearing prices reaching $4m in May as energy cargoes rerouted around Red Sea risk. By August, an LPG carrier paid a record $5.3m for priority passage — the highest publicly reported auction price for a single transit — as deteriorating water conditions coincided with strong demand.

How tight has canal capacity become?

The ACP cut daily booking capacity to 32 ships as rainfall disappointed mid-year, then tightened draft limits before recent rains permitted partial easing. Those oscillations, layered on top of structural growth in LPG and US Gulf-to-Asia flows, have made guaranteed transit windows more valuable than at any point since the canal's 2016 expansion.

What are the commercial consequences?

Carriers already holding neopanamax LoTSA packages now have visibility through the dry season's worst water window. Panamax operators gain a comparable instrument for the first time, potentially absorbing demand that has been spilling into the auction system and driving one-off prices above $5m.

For forwarders, the addition of 288 panamax slots at locked-in rates reduces — though does not eliminate — exposure to volatile last-mile auction premiums during Q1 2027. Shippers without LoTSA cover will continue to compete at auction, where recent trades suggest a single transit can clear for several million dollars during peak scarcity.

Looking ahead, the November sealed bids will set a market-clearing price for guaranteed dry-season capacity on both lock classes. Those numbers, when published, will signal whether 2027 demand justifies the canal's continued tightening of spot inventory, or whether easing reservoir conditions reopen room for the standard reservation system to absorb the volume.