Aegean Intelligence Group
THE INTELLIGENCE PORTAL / SERIESSER-MAR-BOSPORUS · OPEN DATA · 2026
SeriesSER-MAR-BOSPORUSSupply Chain & LogisticsCreated 2019-01-01Updated 2026-09-06IMF 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.
63transits/day · 2026-09-06
+16 (+34.0%)Change over seven days · from 2026-08-30
-17 (-21.2%)Change over thirty days · from 2026-08-07
372 against 634Seven-day transits against baselineRED

The Dashboard says: Black Sea outlet. 59% of pre-war reference flow; 88% of the trailing mean. Below 85 percent of baseline is amber, below 70 percent is red.

Bosporus, transits/day, 1 September 2025 to 6 September 2026Bosporus in transits/day from 1 September 2025 to 6 September 2026, 365 observations. Last value 63 on 6 September 2026, down from 115 at the start of the window. Baseline 90.57 drawn dashed.0501001502025-09-012025-12-012026-03-022026-06-022026-09-06BASELINE, DAILY 90.57TRANSITS/DAY
365 OBSERVATIONS · 2025-09-01 TO 2026-09-06 · LAST 365 OF 2800IMF PORTWATCH (T4) · DAILY VALUES
The last 30 observations as a table
Datetransits/day
2026-09-0663
2026-09-0552
2026-09-0463
2026-09-0349
2026-09-0257
2026-09-0139
2026-08-3149
2026-08-3047
2026-08-2960
2026-08-2857
2026-08-2767
2026-08-2672
2026-08-2547
2026-08-2469
2026-08-2367
2026-08-2272
2026-08-2173
2026-08-2055
2026-08-1967
2026-08-1868
2026-08-1781
2026-08-1638
2026-08-1543
2026-08-1451
2026-08-1348
2026-08-1276
2026-08-1166
2026-08-1063
2026-08-0965
2026-08-0857

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 2026-09-12
Filesdata.csv · datasheet
SHA-256 of data.csve6bba9dcddf3a4c9a48b1eb25a9172229494835858d4e00b0c178fc62b0aaf53
Aegean Intelligence Group, "Maritime chokepoint transits", series Bosporus (SER-MAR-BOSPORUS), open data package maritime-chokepoints, version 2026-09-12, 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