How we read a single season.
BX-TRADE Commodity Research & Strategy publishes disciplined, quantitative research on the species we trade. Our forecasts are probabilistic rather than predictive: we estimate a range of outcomes and their likelihoods, revise openly as each season reveals itself, and are explicit about what our data can and cannot tell you. This page explains how we work. The full analytical detail behind each forecast is reserved for intended recipients of our gated reports.
We publish a range of outcomes and their probabilities, revise as each season reveals itself, and are explicit about what the data can and cannot tell you.
A single-cohort fishery.
Illex argentinus is semelparous: each generation spawns once and dies, and the entire population turns over every year. There is no multi-year stock to buffer a weak season — in effect, the season is the cohort. Because the catch is one cohort aging in real time, the weekly shift in size composition tracks the population's biological progression, and the season ends on a biological clock rather than when fishing effort runs out. This lifecycle, established in the cephalopod literature, is the foundation everything else rests on.
An ensemble, not a single model.
We do not rely on any one forecasting model. Several independent statistical approaches are run in parallel and combined into a single estimate, weighted by how each has performed against the data as the season progresses. The output is a set of scenarios — a base case alongside lower and higher cases, each with an associated probability — not a single number presented as certainty.
Revised weekly, in the open.
Early-season estimates are deliberately wide; the biology has not yet shown its hand. Each week of catch, size, and fleet data narrows the range, and we revise accordingly. Rather than quietly restate a number, we publish the revision track so readers can see how and why the outlook has moved.
The signals we watch.
Three families of indicator carry most of the weekly read: the catch trajectory relative to historical seasons, the size-grade composition as the cohort matures, and fleet activity and catch-per-unit-effort. We assess each against historical reference patterns to judge where in its arc the season sits.
Data sources and their limits.
Our figures are built primarily on Taiwan-origin jig-fleet catch and size-grade reporting and the associated vessel activity. This is a consistent but partial view of the fishery: other flag-state fleets operate on the same stock and report through separate systems, so our series represents a defined subset of total stock-wide removals and is calibrated to predict Taiwan-fleet outcomes rather than total landings. We supplement it with published stock-assessment and oceanographic research and with regional regulatory findings, which we report as attributed third-party findings rather than endorse.
Uncertainty and appropriate use.
Forecasts are model-derived estimates subject to revision and carry genuine uncertainty; they are not guarantees. Our public briefs are summaries; the underlying models and full detail are provided only to intended recipients. Nothing we publish constitutes investment, trading, or financial advice, or an offer or solicitation.