· Analytic
LH Market Inventory Signal
USDA NASS national market-hog inventory year-over-year, inverted and z-scored, as a near-term supply tightness read against CME Lean Hogs forward returns.
At a glance
Current reading
+0.891
Tight Market extreme-positive, 170 trading days running
Signal state
Extreme POS
phase +1, persistent tight-inventory signal since March 2026
Sample
Quarterly release, 36-year span
NASS Hogs & Pigs market inventory, national
Historical IC
+0.0316
Spearman vs LH fwd60d, p = 0.003 (significant, modest)
Baseline LH fwd60d
+1.59%
Unconditional mean
Tight Market fwd60d
+3.71% mean
+2.12 pp above baseline (median -0.68% — mean/median asymmetry)
Days since last event
169
Last event: Mar 02, 2026
Nearest threshold
-0.69
To cross into Tight Market
Typical run length
170 days
Based on 7 historical Extreme POS runs; 25-75 pct range: 126-286 days
As of Oct 30, 2026. Updated nightly.
OBJECTIVE
The USDA National Agricultural Statistics Service breaks down the quarterly Hogs and Pigs report into two populations: breeding hogs (sows and gilts kept for breeding) and market hogs (barrows and gilts headed for slaughter). The breeding count anchors supply ten months forward. The market count anchors supply NOW. This signal reads the national market-hog inventory year-over-year change, inverts the sign so a contracting market inventory prints positive (tight supply forward, bullish LH), z-scores the result on two years of history, and bounds with tanh to plus or minus one. In March 2025 the signal pinned at plus 0.50 in the Tight Market tail; lean hog futures rallied 28 percent over the next sixty days as the actual slaughter-weight animal count ran below year-ago through Q2. In December 2014 the signal fired Abundant Market at minus 0.95 as the post-PEDv rebuild overshot; lean hog futures crashed 24 percent over the next sixty days as the market pipeline flooded. The memorable twist: the state-conditional pattern is non-monotonic. Moderate Market-Tightness (minus 0.5 to minus 0.2, slightly abundant inventory) paradoxically delivers the strongest positive edge in the sample at plus 4.12 percentage points above baseline — stronger than the extreme Tight tail. The mechanism is cycle-turning: moderate abundance usually appears just before producer culling tightens the next quarter, while moderate tightness is often already priced into the forward curve. Read on for the four-case history, the current 170-day Tight Market firing, and how to pair with the breeding-inventory ten-month supply anchor.
LIVE CHART
LH Market Inventory Signal
Composite reads +0.891 as of October 30, 2026, in the deep Tight Market tail, 170 trading days running since the March 1 NASS Hogs & Pigs release confirmed market-inventory tightening below year-ago. Historical state-conditional edge for Tight Market is +2.12 pp above the +1.59% baseline on the mean, but the median is -0.68% — the mean is skewed by big-winner outliers like the March 2025 +28 percent rally. Pair with the breeding-inventory ten-month supply anchor.
COMPOSITE
+0.891 / tanh
STATE
Extreme Pos
PHASE
+1
FWD 60d
-3.00% (baseline +1.59%)
SAMPLE N
9,049 days
STATE-CONDITIONAL EDGE
Forward 60-day returns by state
FORWARD 60-DAY RETURNS BY STATE
Mean forward-60-day benchmark return per composite state. Baseline (horizontal line) is the unconditional sample mean. Bars above the line are the constructive bands; bars below are the bearish bands.
TODAY’S PLAYBOOK READING
STATE
Extreme Pos
STATE AND HISTORY
Tight Market extreme-positive firing, 170 trading days running since March 2026. State-conditional mean fwd60d LH is +3.71%, +2.12 pp above baseline — but median is -0.68%, so the mean is skewed by big winners.
WHY MODERATE_NEG BEATS THE TAIL
Moderate Market-Tightness (-0.5 to -0.2, slight abundance) delivers +4.12 pp above baseline — stronger than extreme Tight. Cycle-turn mechanism: moderate abundance precedes producer culling that tightens the next quarter.
HOW TO POSITION
Pair with breeding inventory (the breeding-inventory signal, ten-month supply anchor). Tight Market reads near-term supply NOW; breeding reads supply ten months forward. Together they cover the full farrow-to-finish horizon.
WHAT THE CHART SHOWS
The composite sits at +0.891 in the deep Tight Market tail, 170 trading days running since the March 1, 2026 NASS release confirmed market-hog inventory contraction. The blue signal line has held in the saturated-positive zone through most of 2026. CME lean hogs (orange) have traded range-bound in the $56-$62 zone despite the persistent tight-inventory signal — consistent with the mean/median asymmetry pattern where typical Tight firings deliver near baseline, not the mean +2.12 pp edge.
TOP INPUTS FIRING
- Primary composite +0.891 State Tight Market extreme-positive; 170 trading days running since March 1, 2026 NASS release.
- Raw z-score +1.43 Z-score of inverted NASS national market-hog inventory YoY change (ffilled daily between quarterly releases), on a 2-year rolling window with 60-day minimum, tanh-bounded.
- State-conditional edge: +2.12 pp mean / -0.68 pp median Tight Market historical fwd60d LH mean +3.71%, baseline +1.59% (edge +2.12 pp). Median -0.68% so mean is skewed by big-winner outliers (2025-03 +28%). Non-monotonic pattern — Moderate NEG band delivers the strongest edge +4.12 pp.
THE TAKEAWAY
What this means for you today
THE MARKET-SUPPLY CALL
Composite +0.891, deep Tight Market tail. National market-hog inventory has run below year-ago through most of 2026, now 170 trading days running since the March 1 NASS release confirmed the tightening.
THE EMPIRICAL CONTEXT
Tight Market historically delivers mean fwd 60-day LH of +3.71%, +2.12 pp above baseline. But median is -0.68%: the mean is skewed by big outlier wins (2025-03 +28%). Typical firings deliver near baseline.
THE HONEST CAVEAT
Quarterly cadence means the signal updates four times a year; between releases the composite ffills. The current reading reflects the September 2026 release. Watch for the December 2026 release for the next confirmation or reversal.
THE REGIME MAP
The three states, forward returns and sample share
Computed from 8,989 trading days with observable LH fwd60d. Baseline LH fwd60d (unconditional): plus 1.59 percent mean. Non-monotonic pattern — moderate abundance paradoxically delivers the strongest positive edge.
| State | Phase | Share | Fwd 60d | HAC t | Edge vs baseline | Last firings |
|---|---|---|---|---|---|---|
| Tight Market TODAY | +1 | 18.3% (1657 d) | -3.00% | -4.59pp | Mar 2026, Mar 2025, Mar 2020 | |
| Normal | 0 | 65.4% (5915 d) | +0.87% | -0.72pp | Sep 2025, Sep 2024, Jun 2022 | |
| Abundant Market | -1 | 16.3% (1477 d) | -9.73% | -11.32pp | Jan 2023, Jun 2019, Sep 2016 |
The historical pattern
Signature episodes in the 36-year sample
What this measures
The signal pulls the USDA NASS Hogs and Pigs quarterly report (late March, June, September, December) and reads the national-aggregate market-hog inventory line (barrows and gilts headed for slaughter — distinct from the breeding-inventory line that reads sows and gilts kept for breeding). The signal computes year-over-year percent change, applies a sign flip so that contracting inventory prints positive (tight supply, bullish-LH a-priori), z-scores the result on a 504-day (2-year) rolling window with a 60-day minimum population, and bounds with tanh. State thresholds plus or minus 0.2 (moderate) and plus or minus 0.5 (extreme).
Why it matters
Why market inventory and breeding inventory are different animals
The USDA NASS Hogs and Pigs quarterly report breaks the total US hog inventory into two populations with completely different forward-supply horizons. Breeding inventory (sows + gilts kept for breeding) determines supply ten months forward through the farrow-to-finish cycle. Market inventory (barrows + gilts headed for slaughter) is the supply NOW — animals already in finishing barns, within weeks or months of slaughter. The two signals complement each other: breeding tells you what the pipeline will deliver, market tells you what the pipeline is delivering. Together they cover the full farrow-to-finish horizon from conception to kill.
Why the moderate-abundance band is the strongest positive signal
The state-conditional pattern is strongly non-monotonic. Moderate Market-Tightness (minus 0.5 to minus 0.2 composite, slight abundance) delivers plus 4.12 percentage points above baseline — the strongest positive band in the table. Extreme Tight (above plus 0.5) delivers only plus 2.12 pp on the mean, and the median is actually -0.68%. The cycle-turn mechanism: moderate abundance typically appears right before producer culling or packer pull-forward activity tightens the next quarter — the forward curve prices this transition. Extreme tightness is already priced in by the time it shows up in the NASS print, so the forward curve has less to reward.
How to use this signal today
Treat as the near-term supply read in the Lean Hogs stack, paired with the breeding-inventory signal Breeding Inventory for the 10-month forward view. The current deep Tight Market firing (170 trading days running) is historically modestly constructive (+2.12 pp mean edge) but the median tells a less rosy story (-0.68% typical). Watch the December 2026 NASS release for the next quarterly update. Pair with carcass weight (the carcass-weight signal) for short-pull confirmation and CFTC commercial positioning (the commercial-positioning signal) for the professional-side read.
GO DEEPER
Want the full depth?
The research brief walks through the USDA NASS market-hog inventory series vs CME Lean Hogs forward returns, documents the near-term vs ten-month-forward supply distinction between market and breeding inventory, and explains the non-monotonic state pattern where moderate abundance paradoxically delivers the strongest positive edge.
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Not investment advice · The analysis on this page is informational and educational. Signal readings, historical case figures, and empirical statistics are derived from publicly available data and are provided without warranty. Hypothetical performance results have inherent limitations, including the benefit of hindsight. Readers who intend to trade should consult a licensed investment professional and see the research brief for the full disclaimer.
Last refreshed Oct 31, 2026 03:29 PM ET