Current UCUI
68/100
Moderate-High Uncertainty
+4 points from prior reading
Potato Market Intelligence
Potato Carryin Stocks
Potato carryin stocks measure inventory carried from the prior crop into a new marketing period. MassGain connects opening tonnes with quality, age, commitments, end use, storage condition, and new-crop timing so users can distinguish nominal carry from supply that can realistically bridge the transition.
Market Data
How to read this market
Potato carryin-stocks data measures inventory from the prior crop or marketing period that remains available at the opening of the new period. The market object is old-crop stock by region, product use, variety, storage cohort, quality, owner, and contract status.
Use the data to assess the opening supply cushion, bridge processor or fresh demand into new crop, and understand how residual inventory may affect new-crop pricing. Keep the reference date and source definition explicit to avoid double counting early new-crop harvest.
Data Module
Potato Carryin Stocks
Market objectopening old-crop inventory
Primary measurecarryover stock at reference date
Key dimensionsregion, variety, quality, owner
Commercial usetransition and opening-balance analysis
Quality contextage, shrink, sprouts, storage life
Compare withnew-crop timing and contract needs
Analysis
Why this matters
Large carryin can be a weak cushion when the potatoes are physiologically old, committed, or unsuitable for the next production program. Small carryin can be adequate if new crop overlaps cleanly.
Commercial interpretation should value age and fit as well as tonnes. Opening inventory matters only to the extent that it can serve actual demand before new supply becomes available.
Signal 01
Usable Crop Uncertainty Index
UCUI translates crop and market complexity into a simple uncertainty signal. Higher readings indicate greater uncertainty—not necessarily higher prices.
Understand uncertainty. Anticipate risk. Act earlier.
UCUI is designed to analyze potato-industry publications and data signals across regions, varieties, weather, disease, storage, supply, and demand.
WeatherHigh
DiseaseHigh
StorageMedium
SupplyMedium
Single-day snapshot based on a scan of 11,500+ web and social signals. Get historical and real-time data by clicking the button below.
The MassGain Daily
Today’s market analysis.
A daily editorial synthesis of physical potato data, crop signals, market reporting, and what participants should watch next.
September 16, 2026Latest MassGain publication
Potato market steady for now; Russia’s smaller crop is the salient risk
Spot prices are flat and USDA terminal reports read ‘market steady,’ but a renewed forecast for a smaller Russian harvest and recent regional harvest stress leave seasonal import timing and storage losses as the key uncertainty.
Signal 02
MassGain Potato Index
Independent physical-pricing intelligence and market-trend analysis for procurement, forecasting, contracting, and scenario planning.
Core Russet Carton Median
312.45 USD/MT
Latest qualifying physical-market observation
+4.75 (+1.55%)
Price discovery for the physical potato market
MPI is designed to track physical pricing data, price trends, deltas, and divergences across regions and potato types.
Series window45 days
Current public coverageCore russet cartons
Primary source basisQualifying USDA physical rows
UnitUSD per metric tonne
Single-day snapshot based on most recent 45 days worth of data. Limited to US Russets only. Get more complete, global data about all varieties by clicking the button below.
Signal 03
MassGain Spot Reference
An independent spot reference designed for price discovery, contract discussions, procurement comparisons, and risk modeling.
Russet Burbank — U.S. Midsize
305 USD/MT
Demonstration reference format
+1.6% WoW · Confidence: High
A trusted benchmark for pricing, contracts, and risk
MSR is intended to use real transactions and verifiable physical-market data to support negotiations, price checks, contracting, and risk models.
ProductRusset Burbank
SpecificationU.S. midsize, 40–70 count
Reference typePhysical spot benchmark
StatusIn development
Based on most recent 45 days worth of data. Limited to US Russets only. Get more complete, global data about all varities by clicking the button below. Full access also includes historical data -- including depreciated NYMEX/CBOE/EEX spot references -- projections, trends, and AI-driven insights.
The MassGain Product Ladder
From insight to intelligence to action
Four integrated products built for the physical potato market, delivered through public pages, reports, exports, dashboards, and API access.
1
Content
Original research, commentary, aggregated news, and market updates.
- What matters right now?
- What is happening out there?
2
UCUI™
Usable Crop Uncertainty Index: an AI-powered signal of crop risk and market uncertainty.
- Understand uncertainty
- Anticipate risk
- Act earlier
3
MPI™
MassGain Potato Index: independent physical-pricing intelligence and trend analysis.
- Price discovery
- Regional trends
- Procurement planning
4
MSR™
MassGain Spot Reference: an independent benchmark for price discovery and risk modeling.
- Contracts
- Negotiations
- Risk models
Content + UCUI + MPI + MSR + API access
Get historical series, regional detail, constituent data, exports, alerts, and direct data access.
Overview
Who is this for?
This page is for procurement, processors, growers, and market-intelligence teams that need to understand potato carryin stocks at the start of a new crop or marketing year. Carryin is the inventory transferred from the preceding period and establishes the opening cushion before new production and imports are added.
MassGain organizes carryin by geography, product use, variety, quality, storage cohort, owner, and contract status. It preserves the reference date and source definition so users do not confuse old-crop inventory with new-crop harvest or double count stocks that cross reporting systems. Procurement can assess transition coverage. Processors can determine whether old crop can bridge early plant demand. Growers can see how residual inventory may influence new-crop pricing. Finance can value opening inventory and carrying cost.
Large carryin is not automatically bearish. Old potatoes may be deteriorating, committed, too distant, or unsuitable for the next production program. Small carryin may be adequate when harvest begins early and supply is well matched. MassGain does not infer price direction from the total alone. It provides the age, condition, commitments, disappearance, and new-crop context needed to judge how much opening inventory is commercially useful.
Use Case
A region begins the crop year with carryin 12% above average. MassGain shows the excess is aging fresh stock with limited processing utility, while the buyer’s required chip varieties are scarce. Procurement does not lower its new-crop contract assumptions based on the broad opening total.
FAQs
What are potato carryin stocks?
They are inventories remaining from the prior period and available at the opening of the new period.
Why does stock age matter?
Quality, sprouting, sugars, shrink, and remaining storage life affect commercial usefulness.
How does MassGain qualify carryin?
It links opening stocks with product, quality, ownership, contracts, location, disappearance, and new-crop timing.
Put this market intelligence to work
Get historical data, regional detail, benchmarks, alerts, exports, and API access tailored to your procurement
and market-analysis needs.
Data and Methodology
Professional market-data standards
MassGain is building transparent public market infrastructure. Each live metric will identify its date, unit, coverage, methodology, and source basis.
Data provenance
MassGain uses public, licensed, contributed, and independently derived physical-market information. Source availability and publication schedules vary.
Timing and revisions
Figures may reflect the latest available observation rather than a same-day transaction. Source data and MassGain calculations may be corrected, restated, or revised.
Not transactional pricing
MassGain figures are informational reference values and do not constitute executable bids, offers, settlements, or guarantees that a transaction can occur at the displayed value.
No individualized advice
Content and data are provided for informational and analytical purposes and do not constitute financial, investment, legal, trading, or individualized procurement advice.
Independent publication
Certain observations may be derived from USDA reports. MassGain is independent and is not affiliated with or endorsed by the USDA.
Commercial use and licensing
Public display does not grant rights to reproduce, redistribute, republish, or incorporate MassGain indices or references into commercial products or contracts without authorization.