{
 "computed_at": "2026-09-24T12:38:40+00:00",
 "context": {
  "WPU1322": {
   "for": "concrete",
   "label": "PPI, cement (hydraulic)",
   "mom_pct": 0.0,
   "notes": "preliminary",
   "period": "2026-08",
   "preliminary": true,
   "prior_month_period": "2026-07",
   "prior_month_value": 355.665,
   "prior_year_period": "2025-08",
   "prior_year_value": 360.142,
   "same_month_earlier_years_yoy_pct": {
    "2022-08": 10.2,
    "2023-08": 10.9,
    "2024-08": 5.6,
    "2025-08": 1.7
   },
   "series_id": "WPU1322",
   "series_title": "PPI commodity index: cement, hydraulic (WPU1322), not seasonally adjusted, 1982=100",
   "since_prior_december": {
    "change_pct": 0.0,
    "period": "2025-12",
    "value": 355.624
   },
   "source_id": "bls",
   "status": "OK",
   "two_years_back_period": "2024-08",
   "two_years_back_value": 354.255,
   "unit": "index (1982=100)",
   "value": 355.665,
   "vs_two_years_pct": 0.4,
   "window_5y": {
    "change_from_start_pct": 29.3,
    "from": "2021-09",
    "high": {
     "period": "2025-09",
     "value": 360.462
    },
    "low": {
     "period": "2021-11",
     "value": 273.936
    },
    "observations": 60,
    "to": "2026-08"
   },
   "yoy_pct": -1.2
  },
  "WPU13710102": {
   "for": "gypsum",
   "label": "PPI, gypsum building materials",
   "mom_pct": 0.0,
   "notes": "preliminary",
   "period": "2026-08",
   "preliminary": true,
   "prior_month_period": "2026-07",
   "prior_month_value": 367.032,
   "prior_year_period": "2025-08",
   "prior_year_value": 370.348,
   "same_month_earlier_years_yoy_pct": {
    "2022-08": 19.8,
    "2023-08": -0.8,
    "2024-08": 4.5,
    "2025-08": 1.0
   },
   "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": "2024-08",
   "two_years_back_value": 366.626,
   "unit": "index (Dec 1993=100)",
   "value": 367.032,
   "vs_two_years_pct": 0.1,
   "window_5y": {
    "change_from_start_pct": 24.3,
    "from": "2021-09",
    "high": {
     "period": "2025-03",
     "value": 373.859
    },
    "low": {
     "period": "2021-09",
     "value": 295.37
    },
    "observations": 60,
    "to": "2026-08"
   },
   "yoy_pct": -0.9
  },
  "census_starts_1unit_saar": {
   "for": "all",
   "label": "Census: housing starts, single-family, SAAR (thousands)",
   "mom_pct": 7.6,
   "notes": "",
   "period": "2026-08",
   "preliminary": false,
   "prior_month_period": "2026-07",
   "prior_month_value": 853.0,
   "prior_year_period": "2025-08",
   "prior_year_value": 873.0,
   "same_month_earlier_years_yoy_pct": {
    "2022-08": -16.3,
    "2023-08": 3.5,
    "2024-08": 5.9,
    "2025-08": -14.1
   },
   "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": -3.0,
    "period": "2025-12",
    "value": 946.0
   },
   "source_id": "census_nrc_starts",
   "status": "OK",
   "two_years_back_period": "2024-08",
   "two_years_back_value": 1016.0,
   "unit": "thousands of units",
   "value": 918.0,
   "vs_two_years_pct": -9.6,
   "window_5y": {
    "change_from_start_pct": -16.4,
    "from": "2021-09",
    "high": {
     "period": "2021-11",
     "value": 1214.0
    },
    "low": {
     "period": "2022-11",
     "value": 791.0
    },
    "observations": 60,
    "to": "2026-08"
   },
   "yoy_pct": 5.2
  },
  "census_starts_total_saar": {
   "for": "all",
   "label": "Census: housing starts, total, seasonally adjusted annual rate (thousands)",
   "mom_pct": -2.6,
   "notes": "",
   "period": "2026-08",
   "preliminary": false,
   "prior_month_period": "2026-07",
   "prior_month_value": 1309.0,
   "prior_year_period": "2025-08",
   "prior_year_value": 1291.0,
   "same_month_earlier_years_yoy_pct": {
    "2022-08": -4.0,
    "2023-08": -13.8,
    "2024-08": 5.5,
    "2025-08": -7.4
   },
   "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": -7.5,
    "period": "2025-12",
    "value": 1378.0
   },
   "source_id": "census_nrc_starts",
   "status": "OK",
   "two_years_back_period": "2024-08",
   "two_years_back_value": 1394.0,
   "unit": "thousands of units",
   "value": 1275.0,
   "vs_two_years_pct": -8.5,
   "window_5y": {
    "change_from_start_pct": -19.1,
    "from": "2021-09",
    "high": {
     "period": "2022-04",
     "value": 1807.0
    },
    "low": {
     "period": "2026-05",
     "value": 1182.0
    },
    "observations": 60,
    "to": "2026-08"
   },
   "yoy_pct": -1.2
  },
  "usgs_cement_shipments_us_mt": {
   "for": "concrete",
   "label": "USGS: portland and blended cement shipments, U.S. plants (metric tons)",
   "mom_pct": 8.5,
   "notes": "Cement in April 2026; Includes data available through September 01, 2026, unless otherwise noted.; estimated (USGS superscript e)",
   "period": "2026-04",
   "preliminary": false,
   "prior_month_period": "2026-03",
   "prior_month_value": 7033428.0,
   "prior_year_period": "2025-04",
   "prior_year_value": 7289642.0,
   "same_month_earlier_years_yoy_pct": {
    "2022-04": null,
    "2023-04": null,
    "2024-04": null,
    "2025-04": 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": 36.6,
    "period": "2025-12",
    "value": 5582885.0
   },
   "source_id": "usgs_cement_mis",
   "status": "OK",
   "two_years_back_period": "2024-04",
   "two_years_back_value": null,
   "unit": "metric tons",
   "value": 7628800.0,
   "vs_two_years_pct": null,
   "window_5y": {
    "change_from_start_pct": 68.0,
    "from": "2021-05",
    "high": {
     "period": "2025-10",
     "value": 8559372.0
    },
    "low": {
     "period": "2025-01",
     "value": 4542016.0
    },
    "observations": 16,
    "to": "2026-04"
   },
   "yoy_pct": 4.7,
   "ytd": {
    "change_pct": 8.3,
    "months": 4,
    "prior_year_sum": 23252667,
    "status": "OK",
    "sum": 25184556,
    "through": "2026-04"
   }
  },
  "wb_aluminum_usd_mt": {
   "for": "aluminum",
   "label": "LME aluminum, World Bank monthly average (USD per metric ton)",
   "mom_pct": 2.8,
   "notes": "workbook Updated on September 02, 2026",
   "period": "2026-08",
   "preliminary": false,
   "prior_month_period": "2026-07",
   "prior_month_value": 3161.0,
   "prior_year_period": "2025-08",
   "prior_year_value": 2597.0,
   "same_month_earlier_years_yoy_pct": {
    "2022-08": -6.6,
    "2023-08": -12.1,
    "2024-08": 9.7,
    "2025-08": 10.8
   },
   "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": 13.0,
    "period": "2025-12",
    "value": 2876.0
   },
   "source_id": "worldbank_cmo",
   "status": "OK",
   "two_years_back_period": "2024-08",
   "two_years_back_value": 2344.0,
   "unit": "USD per metric ton",
   "value": 3251.0,
   "vs_two_years_pct": 38.7,
   "window_5y": {
    "change_from_start_pct": 14.7,
    "from": "2021-09",
    "high": {
     "period": "2026-05",
     "value": 3666.0
    },
    "low": {
     "period": "2023-08",
     "value": 2137.0
    },
    "observations": 60,
    "to": "2026-08"
   },
   "yoy_pct": 25.2
  },
  "wb_copper_usd_mt": {
   "for": "copper",
   "label": "LME copper, World Bank monthly average (USD per metric ton)",
   "mom_pct": 5.8,
   "notes": "workbook Updated on September 02, 2026",
   "period": "2026-08",
   "preliminary": false,
   "prior_month_period": "2026-07",
   "prior_month_value": 13543.0,
   "prior_year_period": "2025-08",
   "prior_year_value": 9670.0,
   "same_month_earlier_years_yoy_pct": {
    "2022-08": -14.8,
    "2023-08": 4.6,
    "2024-08": 7.5,
    "2025-08": 7.8
   },
   "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": 21.6,
    "period": "2025-12",
    "value": 11785.0
   },
   "source_id": "worldbank_cmo",
   "status": "OK",
   "two_years_back_period": "2024-08",
   "two_years_back_value": 8972.0,
   "unit": "USD per metric ton",
   "value": 14326.0,
   "vs_two_years_pct": 59.7,
   "window_5y": {
    "change_from_start_pct": 53.6,
    "from": "2021-09",
    "high": {
     "period": "2026-08",
     "value": 14326.0
    },
    "low": {
     "period": "2022-07",
     "value": 7545.0
    },
    "observations": 60,
    "to": "2026-08"
   },
   "yoy_pct": 48.1
  }
 },
 "core": [
  {
   "label": "PPI, softwood lumber",
   "material": "Softwood lumber",
   "mom_pct": -1.9,
   "notes": "preliminary",
   "period": "2026-08",
   "preliminary": true,
   "prior_month_period": "2026-07",
   "prior_month_value": 300.547,
   "prior_year_period": "2025-08",
   "prior_year_value": 263.714,
   "same_month_earlier_years_yoy_pct": {
    "2022-08": 13.6,
    "2023-08": -18.2,
    "2024-08": -6.3,
    "2025-08": 5.5
   },
   "series_id": "WPU0811",
   "series_title": "PPI commodity index: softwood lumber (WPU0811), not seasonally adjusted, 1982=100",
   "since_prior_december": {
    "change_pct": 17.9,
    "period": "2025-12",
    "value": 250.132
   },
   "slug": "lumber",
   "source_id": "bls",
   "status": "OK",
   "two_years_back_period": "2024-08",
   "two_years_back_value": 249.891,
   "unit": "index (1982=100)",
   "value": 294.899,
   "vs_two_years_pct": 18.0,
   "window_5y": {
    "change_from_start_pct": 7.7,
    "from": "2021-09",
    "high": {
     "period": "2022-03",
     "value": 540.749
    },
    "low": {
     "period": "2023-11",
     "value": 240.798
    },
    "observations": 60,
    "to": "2026-08"
   },
   "yoy_pct": 11.8
  },
  {
   "label": "PPI, copper wire and cable",
   "material": "Copper",
   "mom_pct": 4.2,
   "notes": "preliminary",
   "period": "2026-08",
   "preliminary": true,
   "prior_month_period": "2026-07",
   "prior_month_value": 578.187,
   "prior_year_period": "2025-08",
   "prior_year_value": 473.485,
   "same_month_earlier_years_yoy_pct": {
    "2022-08": -9.2,
    "2023-08": 4.7,
    "2024-08": 7.8,
    "2025-08": 14.4
   },
   "series_id": "WPU10260314",
   "series_title": "PPI commodity index: copper wire and cable (WPU10260314), not seasonally adjusted, Dec 1986=100",
   "since_prior_december": {
    "change_pct": 18.0,
    "period": "2025-12",
    "value": 510.784
   },
   "slug": "copper",
   "source_id": "bls",
   "status": "OK",
   "two_years_back_period": "2024-08",
   "two_years_back_value": 414.0,
   "unit": "index (Dec 1986=100)",
   "value": 602.48,
   "vs_two_years_pct": 45.5,
   "window_5y": {
    "change_from_start_pct": 50.2,
    "from": "2021-09",
    "high": {
     "period": "2026-08",
     "value": 602.48
    },
    "low": {
     "period": "2022-10",
     "value": 366.29
    },
    "observations": 60,
    "to": "2026-08"
   },
   "yoy_pct": 27.2
  },
  {
   "label": "PPI, steel mill products",
   "material": "Steel",
   "mom_pct": 1.7,
   "notes": "preliminary",
   "period": "2026-08",
   "preliminary": true,
   "prior_month_period": "2026-07",
   "prior_month_value": 374.793,
   "prior_year_period": "2025-08",
   "prior_year_value": 308.772,
   "same_month_earlier_years_yoy_pct": {
    "2022-08": -3.6,
    "2023-08": -16.1,
    "2024-08": -14.8,
    "2025-08": 12.2
   },
   "series_id": "WPU1017",
   "series_title": "PPI commodity index: steel mill products (WPU1017), not seasonally adjusted, 1982=100",
   "since_prior_december": {
    "change_pct": 22.0,
    "period": "2025-12",
    "value": 312.41
   },
   "slug": "steel",
   "source_id": "bls",
   "status": "OK",
   "two_years_back_period": "2024-08",
   "two_years_back_value": 275.28,
   "unit": "index (1982=100)",
   "value": 381.162,
   "vs_two_years_pct": 38.5,
   "window_5y": {
    "change_from_start_pct": -8.9,
    "from": "2021-09",
    "high": {
     "period": "2021-12",
     "value": 449.711
    },
    "low": {
     "period": "2025-01",
     "value": 261.563
    },
    "observations": 60,
    "to": "2026-08"
   },
   "yoy_pct": 23.4
  },
  {
   "label": "PPI, aluminum mill shapes",
   "material": "Aluminum",
   "mom_pct": -4.4,
   "notes": "preliminary",
   "period": "2026-08",
   "preliminary": true,
   "prior_month_period": "2026-07",
   "prior_month_value": 388.048,
   "prior_year_period": "2025-08",
   "prior_year_value": 291.259,
   "same_month_earlier_years_yoy_pct": {
    "2022-08": 2.8,
    "2023-08": -4.6,
    "2024-08": 2.7,
    "2025-08": 22.8
   },
   "series_id": "WPU102501",
   "series_title": "PPI commodity index: aluminum mill shapes (WPU102501), not seasonally adjusted, 1982=100",
   "since_prior_december": {
    "change_pct": 15.7,
    "period": "2025-12",
    "value": 320.588
   },
   "slug": "aluminum",
   "source_id": "bls",
   "status": "OK",
   "two_years_back_period": "2024-08",
   "two_years_back_value": 237.123,
   "unit": "index (1982=100)",
   "value": 370.902,
   "vs_two_years_pct": 56.4,
   "window_5y": {
    "change_from_start_pct": 52.5,
    "from": "2021-09",
    "high": {
     "period": "2026-06",
     "value": 394.292
    },
    "low": {
     "period": "2024-03",
     "value": 224.413
    },
    "observations": 60,
    "to": "2026-08"
   },
   "yoy_pct": 27.3
  },
  {
   "label": "PPI, gypsum products",
   "material": "Gypsum products",
   "mom_pct": 0.7,
   "notes": "preliminary",
   "period": "2026-08",
   "preliminary": true,
   "prior_month_period": "2026-07",
   "prior_month_value": 481.644,
   "prior_year_period": "2025-08",
   "prior_year_value": 484.016,
   "same_month_earlier_years_yoy_pct": {
    "2022-08": 18.3,
    "2023-08": -0.7,
    "2024-08": 4.2,
    "2025-08": 1.4
   },
   "series_id": "WPU137",
   "series_title": "PPI commodity index: gypsum products (WPU137), not seasonally adjusted, 1982=100",
   "since_prior_december": {
    "change_pct": 1.0,
    "period": "2025-12",
    "value": 480.241
   },
   "slug": "gypsum",
   "source_id": "bls",
   "status": "OK",
   "two_years_back_period": "2024-08",
   "two_years_back_value": 477.129,
   "unit": "index (1982=100)",
   "value": 484.844,
   "vs_two_years_pct": 1.6,
   "window_5y": {
    "change_from_start_pct": 24.1,
    "from": "2021-09",
    "high": {
     "period": "2025-03",
     "value": 487.363
    },
    "low": {
     "period": "2021-09",
     "value": 390.666
    },
    "observations": 60,
    "to": "2026-08"
   },
   "yoy_pct": 0.2
  },
  {
   "label": "PPI, ready-mix concrete",
   "material": "Ready-mix concrete",
   "mom_pct": 0.1,
   "notes": "preliminary",
   "period": "2026-08",
   "preliminary": true,
   "prior_month_period": "2026-07",
   "prior_month_value": 394.742,
   "prior_year_period": "2025-08",
   "prior_year_value": 386.359,
   "same_month_earlier_years_yoy_pct": {
    "2022-08": 10.2,
    "2023-08": 10.4,
    "2024-08": 5.1,
    "2025-08": 0.0
   },
   "series_id": "WPU1333",
   "series_title": "PPI commodity index: ready-mix concrete (WPU1333), not seasonally adjusted, 1982=100",
   "since_prior_december": {
    "change_pct": 2.3,
    "period": "2025-12",
    "value": 386.202
   },
   "slug": "concrete",
   "source_id": "bls",
   "status": "OK",
   "two_years_back_period": "2024-08",
   "two_years_back_value": 386.394,
   "unit": "index (1982=100)",
   "value": 395.186,
   "vs_two_years_pct": 2.3,
   "window_5y": {
    "change_from_start_pct": 30.8,
    "from": "2021-09",
    "high": {
     "period": "2026-06",
     "value": 395.954
    },
    "low": {
     "period": "2021-10",
     "value": 300.646
    },
    "observations": 60,
    "to": "2026-08"
   },
   "yoy_pct": 2.3
  }
 ],
 "exceptions": [
  {
   "detail": "2026-08 is marked preliminary by the source and may be revised",
   "kind": "PRELIMINARY",
   "series_id": "WPU0811"
  },
  {
   "detail": "+27.2% year over year (2025-08 to 2026-08)",
   "kind": "LARGE_ANNUAL_MOVE",
   "series_id": "WPU10260314"
  },
  {
   "detail": "2026-08 is marked preliminary by the source and may be revised",
   "kind": "PRELIMINARY",
   "series_id": "WPU10260314"
  },
  {
   "detail": "+23.4% year over year (2025-08 to 2026-08)",
   "kind": "LARGE_ANNUAL_MOVE",
   "series_id": "WPU1017"
  },
  {
   "detail": "2026-08 is marked preliminary by the source and may be revised",
   "kind": "PRELIMINARY",
   "series_id": "WPU1017"
  },
  {
   "detail": "+27.3% year over year (2025-08 to 2026-08)",
   "kind": "LARGE_ANNUAL_MOVE",
   "series_id": "WPU102501"
  },
  {
   "detail": "2026-08 is marked preliminary by the source and may be revised",
   "kind": "PRELIMINARY",
   "series_id": "WPU102501"
  },
  {
   "detail": "2026-08 is marked preliminary by the source and may be revised",
   "kind": "PRELIMINARY",
   "series_id": "WPU137"
  },
  {
   "detail": "2026-08 is marked preliminary by the source and may be revised",
   "kind": "PRELIMINARY",
   "series_id": "WPU1333"
  },
  {
   "detail": "2026-08 is marked preliminary by the source and may be revised",
   "kind": "PRELIMINARY",
   "series_id": "WPU1322"
  },
  {
   "detail": "2026-08 is marked preliminary by the source and may be revised",
   "kind": "PRELIMINARY",
   "series_id": "WPU13710102"
  },
  {
   "detail": "+5.8% month over month (2026-07 to 2026-08)",
   "kind": "LARGE_MONTHLY_MOVE",
   "series_id": "wb_copper_usd_mt"
  },
  {
   "detail": "+48.1% year over year (2025-08 to 2026-08)",
   "kind": "LARGE_ANNUAL_MOVE",
   "series_id": "wb_copper_usd_mt"
  },
  {
   "detail": "+25.2% year over year (2025-08 to 2026-08)",
   "kind": "LARGE_ANNUAL_MOVE",
   "series_id": "wb_aluminum_usd_mt"
  },
  {
   "detail": "+8.5% month over month (2026-03 to 2026-04)",
   "kind": "LARGE_MONTHLY_MOVE",
   "series_id": "usgs_cement_shipments_us_mt"
  },
  {
   "detail": "+7.6% month over month (2026-07 to 2026-08)",
   "kind": "LARGE_MONTHLY_MOVE",
   "series_id": "census_starts_1unit_saar"
  }
 ],
 "issue": "2026-09",
 "pairs": [
  {
   "comparison": "copper wire and cable (PPI) against LME copper (World Bank)",
   "periods_match": true,
   "product": {
    "mom_pct": 4.2,
    "period": "2026-08",
    "series_id": "WPU10260314",
    "yoy_pct": 27.2
   },
   "raw": {
    "mom_pct": 5.8,
    "period": "2026-08",
    "series_id": "wb_copper_usd_mt",
    "yoy_pct": 48.1
   },
   "yoy_gap_points": -20.9
  },
  {
   "comparison": "aluminum mill shapes (PPI) against LME aluminum (World Bank)",
   "periods_match": true,
   "product": {
    "mom_pct": -4.4,
    "period": "2026-08",
    "series_id": "WPU102501",
    "yoy_pct": 27.3
   },
   "raw": {
    "mom_pct": 2.8,
    "period": "2026-08",
    "series_id": "wb_aluminum_usd_mt",
    "yoy_pct": 25.2
   },
   "yoy_gap_points": 2.1
  },
  {
   "comparison": "ready-mix concrete (PPI) against cement, hydraulic (PPI)",
   "input": {
    "mom_pct": 0.0,
    "period": "2026-08",
    "series_id": "WPU1322",
    "yoy_pct": -1.2
   },
   "periods_match": true,
   "product": {
    "mom_pct": 0.1,
    "period": "2026-08",
    "series_id": "WPU1333",
    "yoy_pct": 2.3
   },
   "yoy_gap_points": 3.5
  },
  {
   "broad": {
    "mom_pct": 0.7,
    "period": "2026-08",
    "series_id": "WPU137",
    "yoy_pct": 0.2
   },
   "comparison": "gypsum products (PPI) against gypsum building materials (PPI)",
   "narrow": {
    "mom_pct": 0.0,
    "period": "2026-08",
    "series_id": "WPU13710102",
    "yoy_pct": -0.9
   },
   "periods_match": true,
   "yoy_gap_points": 1.1
  }
 ],
 "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": "2026-09-24T122426Z",
 "structural_group": {
  "comparison": "lumber, gypsum and concrete, year over year",
  "series": {
   "concrete": {
    "mom_pct": 0.1,
    "period": "2026-08",
    "yoy_pct": 2.3
   },
   "gypsum": {
    "mom_pct": 0.7,
    "period": "2026-08",
    "yoy_pct": 0.2
   },
   "lumber": {
    "mom_pct": -1.9,
    "period": "2026-08",
    "yoy_pct": 11.8
   }
  }
 },
 "title": "Materials Monitor"
}