Current UCUI
68/100
Moderate-High Uncertainty
+4 points from prior reading
Potato Market Intelligence
Potato Beginning Stocks
Potato beginning stocks are inventories carried into the start of a crop, marketing, or reporting period. MassGain qualifies opening stocks by region, product, storage age, quality, commitments, processor demand, and new-crop timing so carry-in is measured as a usable supply cushion rather than a headline total.
Market Data
How to read this market
Potato beginning stocks are inventories carried into the opening of a crop, marketing, or reporting period. The market object should preserve region, crop year, holder or storage category, product or variety where available, quality condition, and whether the stock is committed or open.
Use beginning stocks as the starting supply cushion in a potato balance sheet, then qualify them with storage age, expected new-crop timing, processor demand, contracts, and regional prices. Older or committed inventory should not be treated as equivalent to fresh, flexible supply simply because it appears in the opening total.
Data Module
Potato Beginning Stocks Monitor
Periodopening crop or marketing date
Regionstorage and demand market
Inventorycarry-in volume
Qualityage, condition, and usability
Accessibilitycontracts and holder status
Decision useopening supply cushion
Analysis
Why this matters
High beginning stocks can reduce transition risk, but only when the inventory is usable and accessible. An above-normal carry-in composed of aging potatoes, the wrong variety, or contracted lots can coexist with tight spot availability. The balance-sheet signal should therefore be adjusted for quality and commitments before it is used to infer price pressure.
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 processors, growers, procurement teams, economists, and market analysts that need to understand potato beginning stocks. Beginning stocks are the inventory carried into a new crop, marketing, or reporting period and form the opening supply position for a balance sheet. MassGain helps users determine what the figure includes and connects it with crop year, region, holder category, quality, contract commitments, and historical carry-in patterns.
A large beginning-stock number can provide a buffer, but it may overstate usable supply if the potatoes are aging, off-specification, geographically distant, or already committed. Conversely, low carry-in can increase dependence on timely new-crop harvest and expose buyers to transition risk. MassGain compares beginning inventory with expected production, demand, storage condition, processor usage, regional prices, and prior drawdown. Procurement can assess early-season coverage, processors can plan crop transitions, and lenders can evaluate inventory and working-capital assumptions. The result is a properly qualified opening supply measure that shows how much dependable crop is available at the start of the period and where hidden quality or concentration risks remain.
Use Case
A region enters the marketing year with beginning stocks above average. MassGain shows the inventory is older, largely committed, and weak in the processing variety needed by one plant. Procurement keeps its new-crop coverage plan rather than treating the headline carry-in as flexible supply.
FAQs
What are potato beginning stocks?
They are inventories carried into the start of a defined crop, marketing, or reporting period.
Why can high beginning stocks mislead buyers?
Age, quality, variety, location, commitments, and storage condition may reduce usable availability.
How does MassGain interpret carry-in stocks?
It compares them with crop timing, production, demand, quality, contracts, prices, and historical drawdown.
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.