Alt Data

Shipping

Where ships are and are not going: transits through the chokepoints and calls at the world’s gateway ports, each against its normal, from the positions ships broadcast.

Chokepoints binding

3

2 on watch, of 10

Gateway port calls

−14%

Last 7 days on a year earlier

Ports read

23

Of 23 gateways

Data to

Oct 2

PortWatch, weekly

Chokepoints

Transits a day, latest seven days against the 2019–2023 normal for the same week
PassageStateTransits a dayNormalAgainst normal
PanamaOpen27.131.1−13%
GibraltarOpen135.1133.4+1%
BosphorusBinding38.698.9−61%
SuezWatch43.162.8−31%
Bab el-MandebBinding29.664.7−54%
HormuzBinding2.789.7−97%
MalaccaOpen226.3181.9+24%
Taiwan StraitOpen233250.2−7%
Cape of Good HopeOpen87.750.5+74%
Danish straitsWatch38.949.3−21%

State compares transits a day over the latest 7 days of PortWatch data with the same 7 calendar days averaged over 2019–2023: Binding at half of normal or less, Watch from a fifth to a half below, Open within a fifth of normal or above it.

IMF PortWatch · PortWatch data to Oct 4, 2026 · read Oct 7, 8:27 PM EDT · All 28 passages on World

Calls at the gateways, 13 weeks

All 23 ports below, calls a day
This yearSame weekday a year earlier
Jul 4, 2026Oct 2, 2026

IMF PortWatch port activity · read Oct 7, 8:28 PM EDT · data to Oct 2, 2026

Gateway ports

Latest seven days, Sep 26, 2026 to Oct 2, 2026
PortCalls a dayAgainst normalOn a yearCargo, 7 daysOn a year
East Asia
ShanghaiChina69.9−37%−42%6.8M t−47%
NingboChina47.70%−16%17.3M t+3%
Shenzhen (Shekou)China8.9−10%−28%5.4M t−10%
QingdaoChina28.9−8%−3%12.3M t+34%
TianjinChina29.1−6%−15%9.9M t−7%
Hong KongChina39.6−13%−24%4.2M t+9%
BusanSouth Korea49.1−9%−10%2.9M t+6%
KaohsiungTaiwan28.6−23%−15%3.4M t−1%
South and Southeast Asia, Gulf
SingaporeSingapore115.9−3%−6%15.2M t−5%
Port KlangMalaysia32.4+12%−9%2.0M t−10%
ColomboSri Lanka10.1+1%−20%545K t−23%
Nhava Sheva (Mumbai)India23.6+36%+180%2.7M t+46%
Jebel AliUAE4.7−78%−81%954K t−81%
Europe and Mediterranean
RotterdamNetherlands82.9−11%−1%6.4M t−12%
AntwerpBelgium55.9−12%−4%5.3M t+7%
HamburgGermany17.9−7%−2%2.5M t−22%
PiraeusGreece12.6−21%0%1.1M t+47%
Tanger MedMorocco12.4+16%−12%3.0M t+3%
Americas
Los Angeles–Long BeachUnited States10.6+2%0%4.5M t+17%
New York–New JerseyUnited States10.0−11%−16%1.6M t−25%
SavannahUnited States5.9−5%+5%1.3M t+55%
HoustonUnited States21.4−1%−3%4.7M t+1%
SantosBrazil16.0+19%−9%3.5M t−1%

Cargo is PortWatch’s estimate of imports plus exports in metric tonnes, modelled from how deep each ship sits in the water. Normal is the same seven calendar days averaged over 2019–2023; a year earlier is 364 days back, so weekdays line up.

What ship positions can and cannot say

Every large ship broadcasts its position (AIS). PortWatch, run by the IMF with the University of Oxford, turns those positions into daily transits and port calls and estimates cargo from each ship’s draught. That makes a blockade, a diversion or a port slowdown visible within days, where customs figures take months.

It counts ships, not the value of what they carry. A quiet week can be weather, a holiday or a data gap, and PortWatch revises its latest week as late positions arrive. Read a state that holds for several weeks, not a single reading.

ARCANE reporting

Beneath the SurfaceChina stopped shipping two rare earth metals to Japan but kept exporting magnets worldwideJapan's magnet makers rely on those metals to make magnets that withstand heat, and an Australian miner has agreed to reserve a share of what it produces for Japan.Early WarningAsian port congestion leaves container lines a steep climb back onto scheduleSea-Intelligence's August reading, expected within days, will show whether July's sharp drop in on-time vessel arrivals was a passing jam or a longer slide, and whether carriers and the cargo owners waiting on their ships face more months of late arrivals.Beneath the SurfaceIran offers to reopen Hormuz, but Trump points to a post-midterm dealTehran ties a phased reopening of the strait to lifting the US blockade, leaving Gulf states and shippers waiting on a Washington that is publicly pressing for isolation.Early WarningChina builds Antelope Reef into an island big enough for a runwayVietnam and a busy shipping corridor would sit within reach of any airfield built on the new ground, and satellite images will show first whether one comes.
Shipping · Alt Data · ARCANE