Aegean Intelligence Group
THE INTELLIGENCE PORTAL / SERIESSER-MAR-BOSPORUS · OPEN DATA · 2026
SeriesSER-MAR-BOSPORUSSupply Chain & LogisticsCreated 2019-01-01Updated 2026-10-25IMF PortWatch (T4)Standard: AEGEAN-OS v1.3
SERIES · SUPPLY CHAIN & LOGISTICS

Bosporus

Daily vessel transits through Bosporus, counted by IMF PortWatch from AIS positions and collected every morning by the firm's Dashboard pipeline.

Reading and history

The latest value with its seven- and thirty-day change, the full history on file, and the last thirty observations as a table.
62transits/day · 2026-10-25
+4 (+6.9%)Change over seven days · from 2026-10-18
+2 (+3.3%)Change over thirty days · from 2026-09-25
376 against 634Seven-day transits against baselineRED

The Dashboard says: Black Sea outlet. 59% of pre-war reference flow; 108% of the trailing mean. Below 85 percent of baseline is amber, below 70 percent is red.

Bosporus, transits/day, 20 October 2025 to 25 October 2026Bosporus in transits/day from 20 October 2025 to 25 October 2026, 365 observations. Last value 62 on 25 October 2026, down from 98 at the start of the window. Baseline 90.57 drawn dashed.0501001502025-10-202026-01-192026-04-202026-07-272026-10-25BASELINE, DAILY 90.57TRANSITS/DAY
365 OBSERVATIONS · 2025-10-20 TO 2026-10-25 · LAST 365 OF 2849IMF PORTWATCH (T4) · DAILY VALUES
The last 30 observations as a table
Datetransits/day
2026-10-2562
2026-10-2449
2026-10-2348
2026-10-2251
2026-10-2157
2026-10-2056
2026-10-1953
2026-10-1858
2026-10-1751
2026-10-1668
2026-10-1520
2026-10-1416
2026-10-1348
2026-10-1265
2026-10-1154
2026-10-1055
2026-10-0966
2026-10-0850
2026-10-0759
2026-10-0654
2026-10-0568
2026-10-0472
2026-10-0325
2026-10-0226
2026-10-0138
2026-09-3041
2026-09-2932
2026-09-2836
2026-09-2746
2026-09-2652

About this series

Where the readings come from, how the source is graded, how often it updates, and what to bear in mind.
SourceIMF PortWatch
On the Dashboard: Maritime tab
TierT4
Cadence and lagAppended daily by the collectors; PortWatch itself publishes with a lag of several days.
CaveatsCounts are PortWatch's AIS-derived estimates. Gaps in the series are gaps in the upstream data and are not filled. Baselines and status colours on the Dashboard are the firm's derivation and are not in this file.

Download and cite

The package this series ships in, its checksum, and the citation line.
Packagemaritime-chokepoints · version 2026-10-28
Filesdata.csv · datasheet
SHA-256 of data.csvc62e20524b557a8b4afa41efd37dabf8ad313415b0696d03d7f4adf500865ba8
Aegean Intelligence Group, "Maritime chokepoint transits", series Bosporus (SER-MAR-BOSPORUS), open data package maritime-chokepoints, version 2026-10-28, aegeanintel.com/data/series/bosporus/. Free to use with attribution; no warranty.

Claims that resolve against this series

Forward claims on the ledger whose outcome is read from these values.

No claim on the ledger resolves against this series yet.

Connected objects
Dataset (1)
Desk (1)
Claims that reference this series (0)

No claim on the ledger resolves against this series yet.

Dashboard tab