{
  "available_snapshot_dates": [
    "2026-07-17",
    "2026-07-18",
    "2026-07-19",
    "2026-07-20",
    "2026-07-21",
    "2026-07-22",
    "2026-07-23",
    "2026-07-24",
    "2026-07-27",
    "2026-07-28",
    "2026-07-29",
    "2026-07-30",
    "2026-07-31",
    "2026-08-03",
    "2026-08-05"
  ],
  "comparison_days": 14,
  "distinct_products": 109,
  "files": [
    {
      "anomalies": 0,
      "from_date": "2026-07-17",
      "matched_products": 9290,
      "path": "2026-07-18.json",
      "price_decreases": 1,
      "price_increases": 0,
      "to_date": "2026-07-18",
      "total_changes": 1
    },
    {
      "anomalies": 0,
      "from_date": "2026-07-18",
      "matched_products": 9193,
      "path": "2026-07-19.json",
      "price_decreases": 0,
      "price_increases": 0,
      "to_date": "2026-07-19",
      "total_changes": 0
    },
    {
      "anomalies": 0,
      "from_date": "2026-07-19",
      "matched_products": 9032,
      "path": "2026-07-20.json",
      "price_decreases": 0,
      "price_increases": 0,
      "to_date": "2026-07-20",
      "total_changes": 0
    },
    {
      "anomalies": 0,
      "from_date": "2026-07-20",
      "matched_products": 9034,
      "path": "2026-07-21.json",
      "price_decreases": 2,
      "price_increases": 1,
      "to_date": "2026-07-21",
      "total_changes": 3
    },
    {
      "anomalies": 0,
      "from_date": "2026-07-21",
      "matched_products": 9082,
      "path": "2026-07-22.json",
      "price_decreases": 0,
      "price_increases": 11,
      "to_date": "2026-07-22",
      "total_changes": 11
    },
    {
      "anomalies": 2,
      "from_date": "2026-07-22",
      "matched_products": 9097,
      "path": "2026-07-23.json",
      "price_decreases": 2,
      "price_increases": 10,
      "to_date": "2026-07-23",
      "total_changes": 12
    },
    {
      "anomalies": 0,
      "from_date": "2026-07-23",
      "matched_products": 9109,
      "path": "2026-07-24.json",
      "price_decreases": 5,
      "price_increases": 8,
      "to_date": "2026-07-24",
      "total_changes": 13
    },
    {
      "anomalies": 0,
      "from_date": "2026-07-24",
      "matched_products": 8663,
      "path": "2026-07-27.json",
      "price_decreases": 3,
      "price_increases": 6,
      "to_date": "2026-07-27",
      "total_changes": 9
    },
    {
      "anomalies": 0,
      "from_date": "2026-07-27",
      "matched_products": 8984,
      "path": "2026-07-28.json",
      "price_decreases": 0,
      "price_increases": 1,
      "to_date": "2026-07-28",
      "total_changes": 1
    },
    {
      "anomalies": 0,
      "from_date": "2026-07-28",
      "matched_products": 8999,
      "path": "2026-07-29.json",
      "price_decreases": 25,
      "price_increases": 16,
      "to_date": "2026-07-29",
      "total_changes": 41
    },
    {
      "anomalies": 0,
      "from_date": "2026-07-29",
      "matched_products": 9073,
      "path": "2026-07-30.json",
      "price_decreases": 1,
      "price_increases": 0,
      "to_date": "2026-07-30",
      "total_changes": 1
    },
    {
      "anomalies": 0,
      "from_date": "2026-07-30",
      "matched_products": 9050,
      "path": "2026-07-31.json",
      "price_decreases": 0,
      "price_increases": 2,
      "to_date": "2026-07-31",
      "total_changes": 2
    },
    {
      "anomalies": 0,
      "from_date": "2026-07-31",
      "matched_products": 8521,
      "path": "2026-08-03.json",
      "price_decreases": 19,
      "price_increases": 11,
      "to_date": "2026-08-03",
      "total_changes": 30
    },
    {
      "anomalies": 0,
      "from_date": "2026-08-03",
      "matched_products": 8836,
      "path": "2026-08-05.json",
      "price_decreases": 0,
      "price_increases": 4,
      "to_date": "2026-08-05",
      "total_changes": 4
    }
  ],
  "filters": {
    "brands": [
      "A.K.P.P. & Wholesome Inc.",
      "B&G",
      "Badia",
      "Black label",
      "Braga Farms",
      "Bubba Burger",
      "Doritos",
      "Driscoll's",
      "Florida Supreme",
      "Foca",
      "Genuine",
      "Good Shall's",
      "Grace",
      "Great American",
      "Green Giant",
      "Hal's New York",
      "Jade Elephant",
      "Jalisco",
      "KC Candy",
      "La Flor",
      "Lakeside",
      "Lay's",
      "Lipton",
      "Mama Mia",
      "Maretti",
      "Mitlitsky",
      "Nathan's",
      "Nestle",
      "Ore Ida",
      "Palenque",
      "Pandy",
      "Pepsi",
      "Quesos La Ricura",
      "Red Bull",
      "Sabrett",
      "San Francisco",
      "Sparkling Ice",
      "Sunkist",
      "Tiegerbrau",
      "Van Camp's",
      "Vintage",
      "Wise"
    ],
    "departments": [
      "Beverages",
      "Bread & Bakery",
      "Cold Cuts",
      "Dairy",
      "Deli",
      "Fish & Shellfish",
      "Fresh Produce",
      "Frozen",
      "Grocery",
      "Health & Special Diets",
      "Laundry & Cleaning",
      "Meal Solutions",
      "Meat & Seafood",
      "Snacks & Sweets"
    ],
    "percentage_range": {
      "max": 75.377,
      "min": -50.167
    },
    "price_range": {
      "max": 19.99,
      "min": 0.42
    }
  },
  "from_date": "2026-07-17",
  "methodology": {
    "anomaly_rule": "absolute price change >=20% and robust MAD z-score >=3.5",
    "comparison": "adjacent healthy snapshot dates matched by stable retailer listing key",
    "completeness": "daily shard files contain every comparable regular-price change without a display cap",
    "missingness": "an item must have finite positive regular prices on both dates; gaps are not changes"
  },
  "price_decreases": 58,
  "price_increases": 70,
  "report": "price_changes",
  "schema_version": "1.0",
  "scope": "Gala Fresh Baldwin public online regular prices; not asserted as physical shelf prices",
  "snapshot_days": 15,
  "status": "comparison_available",
  "to_date": "2026-08-05",
  "total_changes": 128
}