{
 "computed_at": "2026-10-29T17:18:01+00:00",
 "context": {
  "WPU1322": {
   "for": "concrete",
   "label": "PPI, cement (hydraulic)",
   "mom_pct": 0.0,
   "notes": "preliminary",
   "period": "2026-09",
   "preliminary": true,
   "prior_month_period": "2026-08",
   "prior_month_value": 356.119,
   "prior_year_period": "2025-09",
   "prior_year_value": 360.462,
   "same_month_earlier_years_yoy_pct": {
    "2022-09": 10.7,
    "2023-09": 10.5,
    "2024-09": 5.1,
    "2025-09": 1.9
   },
   "series_id": "WPU1322",
   "series_title": "PPI commodity index: cement, hydraulic (WPU1322), not seasonally adjusted, 1982=100",
   "since_prior_december": {
    "change_pct": 0.2,
    "period": "2025-12",
    "value": 355.624
   },
   "source_id": "bls",
   "status": "OK",
   "two_years_back_period": "2024-09",
   "two_years_back_value": 353.645,
   "unit": "index (1982=100)",
   "value": 356.209,
   "vs_two_years_pct": 0.7,
   "window_5y": {
    "change_from_start_pct": 29.4,
    "from": "2021-10",
    "high": {
     "period": "2025-09",
     "value": 360.462
    },
    "low": {
     "period": "2021-11",
     "value": 273.936
    },
    "observations": 60,
    "to": "2026-09"
   },
   "yoy_pct": -1.2
  },
  "WPU13710102": {
   "for": "gypsum",
   "label": "PPI, gypsum building materials",
   "mom_pct": 0.0,
   "notes": "preliminary",
   "period": "2026-09",
   "preliminary": true,
   "prior_month_period": "2026-08",
   "prior_month_value": 367.032,
   "prior_year_period": "2025-09",
   "prior_year_value": 368.591,
   "same_month_earlier_years_yoy_pct": {
    "2022-09": 20.3,
    "2023-09": -1.8,
    "2024-09": 5.2,
    "2025-09": 0.3
   },
   "series_id": "WPU13710102",
   "series_title": "PPI commodity index: gypsum building materials (WPU13710102), not seasonally adjusted, Dec 1993=100",
   "since_prior_december": {
    "change_pct": 0.1,
    "period": "2025-12",
    "value": 366.523
   },
   "source_id": "bls",
   "status": "OK",
   "two_years_back_period": "2024-09",
   "two_years_back_value": 367.312,
   "unit": "index (Dec 1993=100)",
   "value": 367.032,
   "vs_two_years_pct": -0.1,
   "window_5y": {
    "change_from_start_pct": 22.0,
    "from": "2021-10",
    "high": {
     "period": "2025-03",
     "value": 373.859
    },
    "low": {
     "period": "2021-10",
     "value": 300.968
    },
    "observations": 60,
    "to": "2026-09"
   },
   "yoy_pct": -0.4
  },
  "census_starts_1unit_saar": {
   "for": "all",
   "label": "Census: housing starts, single-family, SAAR (thousands)",
   "mom_pct": -4.6,
   "notes": "",
   "period": "2026-09",
   "preliminary": false,
   "prior_month_period": "2026-08",
   "prior_month_value": 900.0,
   "prior_year_period": "2025-09",
   "prior_year_value": 837.0,
   "same_month_earlier_years_yoy_pct": {
    "2022-09": -18.8,
    "2023-09": 9.6,
    "2024-09": 7.6,
    "2025-09": -20.4
   },
   "series_id": "census_starts_1unit_saar",
   "series_title": "Census NRC: new privately owned housing units started, single-family (1 unit), seasonally adjusted annual rate (thousands of units)",
   "since_prior_december": {
    "change_pct": -9.2,
    "period": "2025-12",
    "value": 946.0
   },
   "source_id": "census_nrc_starts",
   "status": "OK",
   "two_years_back_period": "2024-09",
   "two_years_back_value": 1052.0,
   "unit": "thousands of units",
   "value": 859.0,
   "vs_two_years_pct": -18.3,
   "window_5y": {
    "change_from_start_pct": -22.5,
    "from": "2021-10",
    "high": {
     "period": "2021-11",
     "value": 1214.0
    },
    "low": {
     "period": "2022-11",
     "value": 791.0
    },
    "observations": 60,
    "to": "2026-09"
   },
   "yoy_pct": 2.6
  },
  "census_starts_total_saar": {
   "for": "all",
   "label": "Census: housing starts, total, seasonally adjusted annual rate (thousands)",
   "mom_pct": -5.2,
   "notes": "",
   "period": "2026-09",
   "preliminary": false,
   "prior_month_period": "2026-08",
   "prior_month_value": 1288.0,
   "prior_year_period": "2025-09",
   "prior_year_value": 1319.0,
   "same_month_earlier_years_yoy_pct": {
    "2022-09": -6.0,
    "2023-09": -7.6,
    "2024-09": -0.9,
    "2025-09": -2.8
   },
   "series_id": "census_starts_total_saar",
   "series_title": "Census NRC: new privately owned housing units started, total, seasonally adjusted annual rate (thousands of units)",
   "since_prior_december": {
    "change_pct": -11.4,
    "period": "2025-12",
    "value": 1378.0
   },
   "source_id": "census_nrc_starts",
   "status": "OK",
   "two_years_back_period": "2024-09",
   "two_years_back_value": 1357.0,
   "unit": "thousands of units",
   "value": 1221.0,
   "vs_two_years_pct": -10.0,
   "window_5y": {
    "change_from_start_pct": -23.1,
    "from": "2021-10",
    "high": {
     "period": "2022-04",
     "value": 1807.0
    },
    "low": {
     "period": "2026-05",
     "value": 1182.0
    },
    "observations": 60,
    "to": "2026-09"
   },
   "yoy_pct": -7.4
  },
  "usgs_cement_shipments_us_mt": {
   "for": "concrete",
   "label": "USGS: portland and blended cement shipments, U.S. plants (metric tons)",
   "mom_pct": 12.5,
   "notes": "Cement in June 2026; Includes data available through September 23, 2026, unless otherwise noted.; estimated (USGS superscript e)",
   "period": "2026-06",
   "preliminary": false,
   "prior_month_period": "2026-05",
   "prior_month_value": 7335304.0,
   "prior_year_period": "2025-06",
   "prior_year_value": 7480037.0,
   "same_month_earlier_years_yoy_pct": {
    "2022-06": null,
    "2023-06": null,
    "2024-06": null,
    "2025-06": null
   },
   "series_id": "usgs_cement_shipments_us_mt",
   "series_title": "USGS: portland and blended cement shipments from U.S. plants, by month (metric tons; includes cement made from imported clinker)",
   "since_prior_december": {
    "change_pct": 47.9,
    "period": "2025-12",
    "value": 5582885.0
   },
   "source_id": "usgs_cement_mis",
   "status": "OK",
   "two_years_back_period": "2024-06",
   "two_years_back_value": null,
   "unit": "metric tons",
   "value": 8255542.0,
   "vs_two_years_pct": null,
   "window_5y": {
    "change_from_start_pct": 81.8,
    "from": "2021-07",
    "high": {
     "period": "2025-10",
     "value": 8559372.0
    },
    "low": {
     "period": "2025-01",
     "value": 4542016.0
    },
    "observations": 18,
    "to": "2026-06"
   },
   "yoy_pct": 10.4,
   "ytd": {
    "change_pct": 7.2,
    "months": 6,
    "prior_year_sum": 38026342,
    "status": "OK",
    "sum": 40775402,
    "through": "2026-06"
   }
  },
  "wb_aluminum_usd_mt": {
   "for": "aluminum",
   "label": "LME aluminum, World Bank monthly average (USD per metric ton)",
   "mom_pct": 1.0,
   "notes": "workbook Updated on October 02, 2026",
   "period": "2026-09",
   "preliminary": false,
   "prior_month_period": "2026-08",
   "prior_month_value": 3251.0,
   "prior_year_period": "2025-09",
   "prior_year_value": 2653.0,
   "same_month_earlier_years_yoy_pct": {
    "2022-09": -21.5,
    "2023-09": -1.8,
    "2024-09": 12.1,
    "2025-09": 8.3
   },
   "series_id": "wb_aluminum_usd_mt",
   "series_title": "LME aluminum, high-grade primary ingot, monthly average settlement price (World Bank Pink Sheet)",
   "since_prior_december": {
    "change_pct": 14.2,
    "period": "2025-12",
    "value": 2876.0
   },
   "source_id": "worldbank_cmo",
   "status": "OK",
   "two_years_back_period": "2024-09",
   "two_years_back_value": 2450.0,
   "unit": "USD per metric ton",
   "value": 3283.0,
   "vs_two_years_pct": 34.0,
   "window_5y": {
    "change_from_start_pct": 11.9,
    "from": "2021-10",
    "high": {
     "period": "2026-05",
     "value": 3666.0
    },
    "low": {
     "period": "2023-08",
     "value": 2137.0
    },
    "observations": 60,
    "to": "2026-09"
   },
   "yoy_pct": 23.7
  },
  "wb_copper_usd_mt": {
   "for": "copper",
   "label": "LME copper, World Bank monthly average (USD per metric ton)",
   "mom_pct": 1.0,
   "notes": "workbook Updated on October 02, 2026",
   "period": "2026-09",
   "preliminary": false,
   "prior_month_period": "2026-08",
   "prior_month_value": 14326.0,
   "prior_year_period": "2025-09",
   "prior_year_value": 9984.0,
   "same_month_earlier_years_yoy_pct": {
    "2022-09": -16.9,
    "2023-09": 6.9,
    "2024-09": 11.6,
    "2025-09": 8.1
   },
   "series_id": "wb_copper_usd_mt",
   "series_title": "LME copper, grade A cathode, monthly average settlement price (World Bank Pink Sheet)",
   "since_prior_december": {
    "change_pct": 22.8,
    "period": "2025-12",
    "value": 11785.0
   },
   "source_id": "worldbank_cmo",
   "status": "OK",
   "two_years_back_period": "2024-09",
   "two_years_back_value": 9237.0,
   "unit": "USD per metric ton",
   "value": 14474.0,
   "vs_two_years_pct": 56.7,
   "window_5y": {
    "change_from_start_pct": 47.3,
    "from": "2021-10",
    "high": {
     "period": "2026-09",
     "value": 14474.0
    },
    "low": {
     "period": "2022-07",
     "value": 7545.0
    },
    "observations": 60,
    "to": "2026-09"
   },
   "yoy_pct": 45.0
  }
 },
 "core": [
  {
   "label": "PPI, softwood lumber",
   "material": "Softwood lumber",
   "mom_pct": -2.0,
   "notes": "preliminary",
   "period": "2026-09",
   "preliminary": true,
   "prior_month_period": "2026-08",
   "prior_month_value": 294.506,
   "prior_year_period": "2025-09",
   "prior_year_value": 252.782,
   "same_month_earlier_years_yoy_pct": {
    "2022-09": 12.9,
    "2023-09": -15.2,
    "2024-09": -2.2,
    "2025-09": -1.3
   },
   "series_id": "WPU0811",
   "series_title": "PPI commodity index: softwood lumber (WPU0811), not seasonally adjusted, 1982=100",
   "since_prior_december": {
    "change_pct": 15.4,
    "period": "2025-12",
    "value": 250.132
   },
   "slug": "lumber",
   "source_id": "bls",
   "status": "OK",
   "two_years_back_period": "2024-09",
   "two_years_back_value": 256.224,
   "unit": "index (1982=100)",
   "value": 288.562,
   "vs_two_years_pct": 12.6,
   "window_5y": {
    "change_from_start_pct": -1.0,
    "from": "2021-10",
    "high": {
     "period": "2022-03",
     "value": 540.749
    },
    "low": {
     "period": "2023-11",
     "value": 240.798
    },
    "observations": 60,
    "to": "2026-09"
   },
   "yoy_pct": 14.2
  },
  {
   "label": "PPI, copper wire and cable",
   "material": "Copper",
   "mom_pct": 0.8,
   "notes": "preliminary",
   "period": "2026-09",
   "preliminary": true,
   "prior_month_period": "2026-08",
   "prior_month_value": 602.663,
   "prior_year_period": "2025-09",
   "prior_year_value": 464.522,
   "same_month_earlier_years_yoy_pct": {
    "2022-09": -8.3,
    "2023-09": 3.6,
    "2024-09": 8.9,
    "2025-09": 11.9
   },
   "series_id": "WPU10260314",
   "series_title": "PPI commodity index: copper wire and cable (WPU10260314), not seasonally adjusted, Dec 1986=100",
   "since_prior_december": {
    "change_pct": 19.0,
    "period": "2025-12",
    "value": 510.784
   },
   "slug": "copper",
   "source_id": "bls",
   "status": "OK",
   "two_years_back_period": "2024-09",
   "two_years_back_value": 415.246,
   "unit": "index (Dec 1986=100)",
   "value": 607.705,
   "vs_two_years_pct": 46.3,
   "window_5y": {
    "change_from_start_pct": 51.3,
    "from": "2021-10",
    "high": {
     "period": "2026-09",
     "value": 607.705
    },
    "low": {
     "period": "2022-10",
     "value": 366.29
    },
    "observations": 60,
    "to": "2026-09"
   },
   "yoy_pct": 30.8
  },
  {
   "label": "PPI, steel mill products",
   "material": "Steel",
   "mom_pct": 2.2,
   "notes": "preliminary",
   "period": "2026-09",
   "preliminary": true,
   "prior_month_period": "2026-08",
   "prior_month_value": 380.348,
   "prior_year_period": "2025-09",
   "prior_year_value": 304.579,
   "same_month_earlier_years_yoy_pct": {
    "2022-09": -14.5,
    "2023-09": -12.9,
    "2024-09": -13.0,
    "2025-09": 12.4
   },
   "series_id": "WPU1017",
   "series_title": "PPI commodity index: steel mill products (WPU1017), not seasonally adjusted, 1982=100",
   "since_prior_december": {
    "change_pct": 24.4,
    "period": "2025-12",
    "value": 312.41
   },
   "slug": "steel",
   "source_id": "bls",
   "status": "OK",
   "two_years_back_period": "2024-09",
   "two_years_back_value": 270.97,
   "unit": "index (1982=100)",
   "value": 388.58,
   "vs_two_years_pct": 43.4,
   "window_5y": {
    "change_from_start_pct": -10.8,
    "from": "2021-10",
    "high": {
     "period": "2021-12",
     "value": 449.711
    },
    "low": {
     "period": "2025-01",
     "value": 261.563
    },
    "observations": 60,
    "to": "2026-09"
   },
   "yoy_pct": 27.6
  },
  {
   "label": "PPI, aluminum mill shapes",
   "material": "Aluminum",
   "mom_pct": -0.1,
   "notes": "preliminary",
   "period": "2026-09",
   "preliminary": true,
   "prior_month_period": "2026-08",
   "prior_month_value": 370.931,
   "prior_year_period": "2025-09",
   "prior_year_value": 295.898,
   "same_month_earlier_years_yoy_pct": {
    "2022-09": -1.8,
    "2023-09": -4.2,
    "2024-09": 2.8,
    "2025-09": 25.8
   },
   "series_id": "WPU102501",
   "series_title": "PPI commodity index: aluminum mill shapes (WPU102501), not seasonally adjusted, 1982=100",
   "since_prior_december": {
    "change_pct": 15.6,
    "period": "2025-12",
    "value": 320.588
   },
   "slug": "aluminum",
   "source_id": "bls",
   "status": "OK",
   "two_years_back_period": "2024-09",
   "two_years_back_value": 235.145,
   "unit": "index (1982=100)",
   "value": 370.48,
   "vs_two_years_pct": 57.6,
   "window_5y": {
    "change_from_start_pct": 46.0,
    "from": "2021-10",
    "high": {
     "period": "2026-06",
     "value": 394.359
    },
    "low": {
     "period": "2024-03",
     "value": 224.413
    },
    "observations": 60,
    "to": "2026-09"
   },
   "yoy_pct": 25.2
  },
  {
   "label": "PPI, gypsum products",
   "material": "Gypsum products",
   "mom_pct": 0.8,
   "notes": "preliminary",
   "period": "2026-09",
   "preliminary": true,
   "prior_month_period": "2026-08",
   "prior_month_value": 484.844,
   "prior_year_period": "2025-09",
   "prior_year_value": 482.101,
   "same_month_earlier_years_yoy_pct": {
    "2022-09": 18.5,
    "2023-09": -1.5,
    "2024-09": 4.8,
    "2025-09": 0.9
   },
   "series_id": "WPU137",
   "series_title": "PPI commodity index: gypsum products (WPU137), not seasonally adjusted, 1982=100",
   "since_prior_december": {
    "change_pct": 1.8,
    "period": "2025-12",
    "value": 480.241
   },
   "slug": "gypsum",
   "source_id": "bls",
   "status": "OK",
   "two_years_back_period": "2024-09",
   "two_years_back_value": 477.876,
   "unit": "index (1982=100)",
   "value": 488.936,
   "vs_two_years_pct": 2.3,
   "window_5y": {
    "change_from_start_pct": 23.2,
    "from": "2021-10",
    "high": {
     "period": "2026-09",
     "value": 488.936
    },
    "low": {
     "period": "2021-10",
     "value": 396.89
    },
    "observations": 60,
    "to": "2026-09"
   },
   "yoy_pct": 1.4
  },
  {
   "label": "PPI, ready-mix concrete",
   "material": "Ready-mix concrete",
   "mom_pct": 0.0,
   "notes": "preliminary",
   "period": "2026-09",
   "preliminary": true,
   "prior_month_period": "2026-08",
   "prior_month_value": 395.299,
   "prior_year_period": "2025-09",
   "prior_year_value": 386.267,
   "same_month_earlier_years_yoy_pct": {
    "2022-09": 11.2,
    "2023-09": 10.6,
    "2024-09": 3.6,
    "2025-09": 0.4
   },
   "series_id": "WPU1333",
   "series_title": "PPI commodity index: ready-mix concrete (WPU1333), not seasonally adjusted, 1982=100",
   "since_prior_december": {
    "change_pct": 2.4,
    "period": "2025-12",
    "value": 386.202
   },
   "slug": "concrete",
   "source_id": "bls",
   "status": "OK",
   "two_years_back_period": "2024-09",
   "two_years_back_value": 384.917,
   "unit": "index (1982=100)",
   "value": 395.319,
   "vs_two_years_pct": 2.7,
   "window_5y": {
    "change_from_start_pct": 31.5,
    "from": "2021-10",
    "high": {
     "period": "2026-06",
     "value": 395.954
    },
    "low": {
     "period": "2021-10",
     "value": 300.646
    },
    "observations": 60,
    "to": "2026-09"
   },
   "yoy_pct": 2.3
  }
 ],
 "exceptions": [
  {
   "detail": "2026-09 is marked preliminary by the source and may be revised",
   "kind": "PRELIMINARY",
   "series_id": "WPU0811"
  },
  {
   "detail": "+30.8% year over year (2025-09 to 2026-09)",
   "kind": "LARGE_ANNUAL_MOVE",
   "series_id": "WPU10260314"
  },
  {
   "detail": "2026-09 is marked preliminary by the source and may be revised",
   "kind": "PRELIMINARY",
   "series_id": "WPU10260314"
  },
  {
   "detail": "+27.6% year over year (2025-09 to 2026-09)",
   "kind": "LARGE_ANNUAL_MOVE",
   "series_id": "WPU1017"
  },
  {
   "detail": "2026-09 is marked preliminary by the source and may be revised",
   "kind": "PRELIMINARY",
   "series_id": "WPU1017"
  },
  {
   "detail": "+25.2% year over year (2025-09 to 2026-09)",
   "kind": "LARGE_ANNUAL_MOVE",
   "series_id": "WPU102501"
  },
  {
   "detail": "2026-09 is marked preliminary by the source and may be revised",
   "kind": "PRELIMINARY",
   "series_id": "WPU102501"
  },
  {
   "detail": "2026-09 is marked preliminary by the source and may be revised",
   "kind": "PRELIMINARY",
   "series_id": "WPU137"
  },
  {
   "detail": "2026-09 is marked preliminary by the source and may be revised",
   "kind": "PRELIMINARY",
   "series_id": "WPU1333"
  },
  {
   "detail": "2026-09 is marked preliminary by the source and may be revised",
   "kind": "PRELIMINARY",
   "series_id": "WPU1322"
  },
  {
   "detail": "2026-09 is marked preliminary by the source and may be revised",
   "kind": "PRELIMINARY",
   "series_id": "WPU13710102"
  },
  {
   "detail": "+45.0% year over year (2025-09 to 2026-09)",
   "kind": "LARGE_ANNUAL_MOVE",
   "series_id": "wb_copper_usd_mt"
  },
  {
   "detail": "+23.7% year over year (2025-09 to 2026-09)",
   "kind": "LARGE_ANNUAL_MOVE",
   "series_id": "wb_aluminum_usd_mt"
  },
  {
   "detail": "+12.5% month over month (2026-05 to 2026-06)",
   "kind": "LARGE_MONTHLY_MOVE",
   "series_id": "usgs_cement_shipments_us_mt"
  },
  {
   "detail": "-5.2% month over month (2026-08 to 2026-09)",
   "kind": "LARGE_MONTHLY_MOVE",
   "series_id": "census_starts_total_saar"
  }
 ],
 "issue": "2026-10",
 "pairs": [
  {
   "comparison": "copper wire and cable (PPI) against LME copper (World Bank)",
   "periods_match": true,
   "product": {
    "mom_pct": 0.8,
    "period": "2026-09",
    "series_id": "WPU10260314",
    "yoy_pct": 30.8
   },
   "raw": {
    "mom_pct": 1.0,
    "period": "2026-09",
    "series_id": "wb_copper_usd_mt",
    "yoy_pct": 45.0
   },
   "yoy_gap_points": -14.2
  },
  {
   "comparison": "aluminum mill shapes (PPI) against LME aluminum (World Bank)",
   "periods_match": true,
   "product": {
    "mom_pct": -0.1,
    "period": "2026-09",
    "series_id": "WPU102501",
    "yoy_pct": 25.2
   },
   "raw": {
    "mom_pct": 1.0,
    "period": "2026-09",
    "series_id": "wb_aluminum_usd_mt",
    "yoy_pct": 23.7
   },
   "yoy_gap_points": 1.5
  },
  {
   "comparison": "ready-mix concrete (PPI) against cement, hydraulic (PPI)",
   "input": {
    "mom_pct": 0.0,
    "period": "2026-09",
    "series_id": "WPU1322",
    "yoy_pct": -1.2
   },
   "periods_match": true,
   "product": {
    "mom_pct": 0.0,
    "period": "2026-09",
    "series_id": "WPU1333",
    "yoy_pct": 2.3
   },
   "yoy_gap_points": 3.5
  },
  {
   "broad": {
    "mom_pct": 0.8,
    "period": "2026-09",
    "series_id": "WPU137",
    "yoy_pct": 1.4
   },
   "comparison": "gypsum products (PPI) against gypsum building materials (PPI)",
   "narrow": {
    "mom_pct": 0.0,
    "period": "2026-09",
    "series_id": "WPU13710102",
    "yoy_pct": -0.4
   },
   "periods_match": true,
   "yoy_gap_points": 1.8
  }
 ],
 "policy": {
  "index_levels": "Index levels are not compared across series. A higher index does not mean a more expensive material.",
  "mom_pct": "(latest \u2212 prior month) \u00f7 prior month \u00d7 100, one decimal",
  "no_composite": "The six core series are not averaged. They are selected indicators, not a weighted project budget.",
  "revisions": "Each edition quotes the values the source published at capture time. A later revision by the source is not applied to an earlier edition; it appears in the next edition's data and is noted there if it changes a quoted comparison by 0.5 points or more.",
  "yoy_pct": "(latest \u2212 same month a year earlier) \u00f7 same month a year earlier \u00d7 100, one decimal"
 },
 "run_id": "2026-10-29T171741Z",
 "structural_group": {
  "comparison": "lumber, gypsum and concrete, year over year",
  "series": {
   "concrete": {
    "mom_pct": 0.0,
    "period": "2026-09",
    "yoy_pct": 2.3
   },
   "gypsum": {
    "mom_pct": 0.8,
    "period": "2026-09",
    "yoy_pct": 1.4
   },
   "lumber": {
    "mom_pct": -2.0,
    "period": "2026-09",
    "yoy_pct": 14.2
   }
  }
 },
 "title": "Materials Monitor"
}