Weekly BriefIllex Argentinus Weekly · No.WK16 · Week ending April 25, 2026

Persistent-tail regime extends; second upward revision of the season

Cumulative catch reaches 36,628 MT on a +56.6% weekly rebound to 3,413 MT — the persistent-tail regime confirmed as multi-week. The ensemble base case is revised up to 38,058 MT, the season's second upward revision.

BX-TRADE-CRS·Commodity Research & Strategy·Published April 29, 2026·EN·繁中·For intended recipients
Cumulative catch0MTSeason-to-date · incl. pre-season
Weekly print0MT+56.6% week-on-week
Base case0MT2nd upward revision · +7.9%
>600g share0%Eased below 30% as the surge drew pre-spawning cohort
The read

WK16 is a decisive upward inflection back into the persistent-tail regime first signaled at WK14, breaking from WK15's apparent decay. At 3,413 MT it is the second-highest weekly print of the post-peak phase, behind only WK14. The signal mix is the season's most divergent — size composition still points to advanced terminal phase while CPUE (6.25) and weekly catch point to sustained productivity. The base case lifts to 38,058 MT on the second upward revision; the scenario band widens to 2,861 MT as the bull case re-opens.

Season monitor
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Interactive exhibit — switch views, hover any week, toggle a comparison year, or brush the timeline.
Signal monitor

The season's most divergent mix — weekly catch and CPUE turned bullish while size composition holds bearish; net 20 / 55 / 25.

Weekly catchBullish
3,413 MT
Reset above the 2,500 MT ceiling
CPUEBullish
6.25
First WK16 reading above 4.0 in a weak-magnitude year
>600g shareWatch
29.5%
Reversed off the 30% terminal trigger
400g+ shareBearish
82.5%
Decisively above the 70% maturation threshold
Active vesselsWatch
78
Fleet holding; watch for exits
Persistent-tailBullish
2 wks
Extends to a second consecutive week
BEAR 20%
BASE 55%
BULL 25%
Scenario explorer

Drag next week's catch; the projected base and regime verdict update from the report's own thresholds.

WK18 weeklyassumption
2,000MT
01,0002,0003,0004,000
Projected base case
40,500MT
+313 MT vs current base · season cum → 38,650 MT
Persistent-tail extends — 4th week
Bear
Base
Bull
Proj.
Full edition

This is the public summary. The full 24-page bilingual brief is distributed to intended recipients.

The complete issue carries the full data tables, every model output and weighting, the size-grade and fleet detail, and the week-by-week signal monitor — in English and 繁體中文.

Research disclaimer.This publication is produced by Baixian Trade Commodity Research & Strategy for commercial and informational purposes only. It is current as of the stated week-ending date and does not constitute investment, trading, or financial advice, nor an offer or solicitation. Forecasts are model-derived estimates subject to revision; forward-looking figures involve uncertainty and should not be relied upon as guarantees. Regulatory and stock-assessment references reflect third-party findings and are reported without endorsement. Taiwan-origin and mainland-China-origin catch are distinguished for analytical accuracy only. See the full disclaimers for terms.

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