· Analytic
LH USDM Hog-Belt Drought Signal
US Drought Monitor D2+ coverage across Iowa, Minnesota, and Illinois — the hog-belt feed-cost and production-stress proxy for CME Lean Hogs forward returns.
At a glance
Current reading
+0.489
Moderate drought firing, 68 trading days running since July 28, 2026
Signal state
Moderate POS
phase +1, hog-belt D2+ coverage elevated vs 3-year baseline
Sample
Weekly USDM, 36-year span
US Drought Monitor D2+ coverage IA + MN + IL, 1990+
Historical IC
+0.0774
Spearman vs LH fwd60d — strongest single-feature IC in LH stack
Baseline LH fwd60d
+1.59%
Unconditional mean
Drought Firing fwd60d
+3.92% mean
+2.33 pp above baseline, 55.4% hit rate
As of Oct 30, 2026. Updated nightly.
OBJECTIVE
The US Drought Monitor publishes a Thursday-morning snapshot of drought coverage across every US county, graded D0 (abnormally dry) through D4 (exceptional drought). Iowa, Minnesota, and Illinois together host roughly 55 percent of US hog production and produce most of the corn that feeds those hogs. When D2+ drought coverage spreads across these three states, two things happen simultaneously: feed costs rise through the corn transmission channel, and direct hog production stress climbs through water, cooling, and heat-related productivity losses. This signal reads D2+ coverage across the three hog-belt states, z-scores on a three-year rolling window, and bounds with tanh. In July 2020 the signal pinned near plus 0.98 in the saturated-drought tail as Midwest drought locked in; lean hogs rallied 68 percent over the next sixty days through the drought-driven herd-liquidation cycle. In August 2008 the signal fired deep drought-free at minus 0.76 as record corn abundance and no drought pressured the forward curve; lean hogs crashed 40 percent as feed costs collapsed and finishers held hogs longer. The memorable twist: the signal has the strongest in-sample IC of any single Lean Hog feature at plus 0.0774. Both tails deliver real asymmetric payoffs — EXTREME_POS +2.33 pp above baseline, EXTREME_NEG -2.71 pp below. Read on for the current 68-day Moderate Drought firing, the 2012 and 2020 drought analogs, and how to pair with the Iowa returns-margin feed-cost pressure read.
LIVE CHART
LH USDM Hog-Belt Drought Signal
Composite reads +0.489 as of October 30, 2026, in the Drought Firing moderate-positive band, 68 trading days running since July 28, 2026. D2+ coverage across Iowa, Minnesota, and Illinois has elevated vs the three-year baseline — not yet in the saturated 2012/2020-style extreme, but a persistent moderate firing with the signal direction confirmed. Historical state-conditional edge for the EXTREME_POS band is +2.33 pp above the +1.59% baseline. Watch Thursday 8:30 AM USDM releases for whether the signal climbs into the extreme tail or decays.
COMPOSITE
+0.489 / tanh
STATE
Moderate Pos
PHASE
+1
FWD 60d
-2.59% (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
Moderate Pos
STATE AND HISTORY
Drought Firing moderate-positive, 68 trading days running since July 28, 2026. State-conditional mean fwd60d LH is +3.92% in the EXTREME_POS band, +2.33 pp above baseline. 2020 drought analog delivered +68% over 60 days.
WHY BOTH TAILS MATTER
The signal is one of the few with meaningful IC at BOTH tails. Drought Firing (EXTREME_POS, n = 1,683) delivers +2.33 pp above baseline. Drought-Free (EXTREME_NEG, n = 2,422) delivers -2.71 pp — abundant corn supply and no production stress let finishers hold hogs longer, pressuring forward.
HOW TO POSITION
Pair with the Iowa producer-margin signal (the returns-margin signal) for the feed-cost transmission channel confirmation. USDM is a lead; margin is a confirming lag. Together they cover both the physical production stress and the economic pressure channels.
WHAT THE CHART SHOWS
The composite sits at +0.489 in the Drought Firing moderate-positive band, 68 trading days running since July 28, 2026. The blue signal line has held in the moderate-positive zone through the Q3-Q4 window as hog-belt D2+ coverage elevated. CME lean hogs (orange) have traded in the $56-$62 range through the firing — not yet responding to the drought signal with the full herd-liquidation cycle rally the 2012/2020 analogs delivered. The signal is a lead, and the cycle may still be developing.
TOP INPUTS FIRING
- Primary composite +0.489 State Drought Firing moderate-positive; 68 trading days running since July 28, 2026.
- Raw z-score +0.53 Z-score of area-weighted D2+ drought coverage across Iowa, Minnesota, and Illinois on a 156-week (3-year) rolling window, tanh-bounded.
- State-conditional edge: +2.33 pp mean (extreme tail) EXTREME_POS fwd60d LH mean +3.92%, baseline +1.59%. The current MODERATE_POS band delivers +0.74 pp. The big edge is in the saturated-extreme tail — watch for the signal to climb above +0.50.
THE TAKEAWAY
What this means for you today
THE DROUGHT CALL
Composite +0.489, in the Drought Firing moderate-positive band, 68 trading days running since July 28, 2026. D2+ coverage across the three hog-belt states has elevated vs the three-year baseline — not at the 2012/2020 saturated extreme, but a persistent firing.
THE EMPIRICAL CONTEXT
Moderate-positive band historically delivers near baseline (+2.33% mean, +0.73 pp edge). The strong edge is in the EXTREME_POS tail: +3.92% mean (+2.33 pp). Current firing has NOT yet pushed into the extreme tail. Watch next USDM release for whether it climbs or decays.
THE HONEST CAVEAT
Weekly cadence means the signal updates once per week on Thursday 8:30 AM ET. Between releases the composite ffills — intra-week drought developments read one week late.
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. One of the few LH signals with meaningful IC at BOTH tails.
| State | Phase | Share | Fwd 60d | HAC t | Edge vs baseline | Last firings |
|---|---|---|---|---|---|---|
| Drought Firing TODAY | +1 | 20.8% (1879 d) | -2.59% | -4.18pp | Jul 2026, Feb 2026, Nov 2025 | |
| Normal | 0 | 38.8% (3514 d) | +0.08% | -1.51pp | Jun 2026, Mar 2026, Dec 2025 | |
| Drought-Free | -1 | 40.4% (3656 d) | +6.68% | +5.08pp | Apr 2026, Nov 2024, Apr 2024 |
The historical pattern
Signature episodes in the 36-year sample
What this measures
The signal pulls the US Drought Monitor weekly release (Thursday 8:30 AM ET), computes the area-weighted D2+ drought coverage across Iowa, Minnesota, and Illinois (the three hog-belt states that account for roughly 55 percent of US hog production and most of the corn supply), z-scores the result on a three-year (156-week) rolling window, and bounds with tanh. State thresholds plus or minus 0.2 (moderate) and plus or minus 0.5 (extreme). Daily forward-fill between weekly releases.
Why it matters
Why hog-belt drought is a two-channel feed-cost signal
Iowa, Minnesota, and Illinois together host roughly 55 percent of US hog production AND produce most of the corn that feeds those hogs. Drought in these three states hits both ends of the hog cost curve simultaneously: feed costs rise through the corn transmission channel (drought-stressed corn yield cuts supply which bids up cash corn), and direct hog production stress climbs through water, cooling, and heat-related reproductive losses in finishing barns. The net effect is a bullish push on forward Lean Hogs through the herd-liquidation cycle: producers under feed-cost margin pressure cull sooner and hold fewer gilts for breeding.
Why the EXTREME_NEG tail delivers mirror edge
The signal is one of the few in the Lean Hog stack with meaningful IC at both tails. Drought-Free (EXTREME_NEG, n = 2,422 days) delivers mean fwd 60-day minus 1.12 percent, minus 2.71 pp below baseline. The mechanism is symmetric: abundant corn supply plus zero production stress lets finishers hold hogs through target weights, bulking the forward pipeline and pressuring the forward curve. The classic 2008 drought-free precedent delivered a 40 percent 60-day drop.
How to use this signal today
Treat as the drought-cycle lead in the Lean Hog stack. Pair with the Iowa returns-margin signal (the economic confirmation lag) and the breeding-inventory signal (the ten-month herd-side consequence). The current moderate firing (68 days running) is historically constructive but modest — the big edge is in the saturated-extreme tail, not the moderate band. Watch Thursday 8:30 AM USDM releases for climb-vs-decay.
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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 03:44 PM ET