{
 "series_id": "glp1-cash-price-index",
 "series_name": "GLP-1 Cash Price Index",
 "release_month": "2026-10",
 "release_label": "October 2026",
 "data_month": "2026-09",
 "data_month_label": "September 2026",
 "published_at": "2026-10-04",
 "method_version": "2.0",
 "revision": 1,
 "revision_note": null,
 "revisions": [],
 "license": "CC BY 4.0",
 "license_url": "https://creativecommons.org/licenses/by/4.0/",
 "citation": "GLP-1 Cash Price Index, October 2026 release (September 2026 data), GLP Chart, method version 2.0.",
 "metrics": {
  "compounded_semaglutide_floor": {
   "label": "Cheapest verified compounded semaglutide route",
   "value_usd": 199,
   "programs": [
    "Shed"
   ],
   "n_programs": 2,
   "checks": 4,
   "previous_month_usd": null,
   "change_usd": 0,
   "change_pct": 0,
   "matched": {
    "n_programs": 1,
    "previous_month_usd": 199,
    "this_month_usd": 199,
    "change_usd": 0,
    "change_pct": 0
   },
   "basis": "Median of the weekly floors across programs publishing one flat all-in monthly price for compounded semaglutide at every dose."
  },
  "branded_floor": {
   "label": "Cheapest verified branded route",
   "value_usd": 299,
   "programs": [
    "Knownwell"
   ],
   "n_programs": 7,
   "checks": 4,
   "previous_month_usd": null,
   "change_usd": 0,
   "change_pct": 0,
   "matched": {
    "n_programs": 6,
    "previous_month_usd": 299,
    "this_month_usd": 299,
    "change_usd": 0,
    "change_pct": 0
   },
   "basis": "Median of the weekly floors across branded-supply programs with verified maintenance pricing."
  },
  "branded_minus_compounded": {
   "label": "Branded to compounded gap",
   "value_usd": 100,
   "ratio": 1.5,
   "basis": "The branded floor less the compounded semaglutide floor, same month, same method."
  },
  "median_all_in": {
   "label": "Median all-in cash price across the tracked programs",
   "value_usd": 333,
   "n_programs": 20,
   "n_programs_in_index": 20,
   "checks": 4,
   "previous_month_usd": null,
   "change_usd": -5,
   "change_pct": -1.48,
   "matched": {
    "n_programs": 18,
    "previous_month_usd": 338,
    "this_month_usd": 333,
    "change_usd": -5,
    "change_pct": -1.48
   },
   "basis": "Median of the weekly medians across every program priced in the month; the change counts only programs priced in both months."
  }
 },
 "comparison": {
  "basis": "matched panel",
  "this_month": "2026-09",
  "previous_month": "2026-08",
  "previous_month_label": "August 2026",
  "n_programs_this_month": 20,
  "n_programs_matched": 18,
  "matched_programs": [
   "Amazon Pharmacy",
   "Costco / Success by Sesame",
   "CVS MinuteClinic",
   "Found",
   "GoodRx for Weight Loss",
   "Hims & Hers",
   "Hone Health",
   "Knownwell",
   "Lemonaid Health",
   "LifeMD",
   "Medvi",
   "Noom Med",
   "Ro Body",
   "Sesame Care",
   "Shed",
   "Strut Health",
   "Walgreens Weight Management",
   "WeightWatchers Clinic"
  ],
  "entered": [
   {
    "program": "Henry Meds",
    "slug": "henry-meds",
    "price_usd": 297,
    "first_checked": "2026-09-14",
    "reason": "first verified price in September 2026"
   }
  ],
  "exited": [
   {
    "program": "Mochi Health",
    "slug": "mochi",
    "price_usd": 178,
    "last_checked": "2026-08-31",
    "delisted_on": "2026-09-14",
    "reason": "delisted 2026-09-14, so it is left out of the comparison"
   }
  ],
  "swapped": [
   {
    "program": "Sam's Club Member Health",
    "slug": "sams-club-health",
    "date": "2026-09-07",
    "from_product": "Wegovy pill",
    "to_product": "Zepbound pen",
    "from_usd": 299,
    "to_usd": 399,
    "note": "Sam's Club Member Health: Wegovy pill replaced by Zepbound pen",
    "reason": "Sam's Club stopped publishing a Wegovy pill price and rewrote its GLP-1 page around the Zepbound pen, so the listing moved to the pen's $399 first maintenance step (newsletter issue 9, September 7, 2026)"
   }
  ],
  "excluded": [],
  "corrections": [
   {
    "program": "Costco / Success by Sesame",
    "slug": "costco-sesame",
    "from_usd": 408,
    "to_usd": 398,
    "recorded": "2026-09-04",
    "first_restated": "2026-08-03",
    "last_restated": "2026-08-24",
    "reason": "restated flat to $398 across August in revision 2 of the September 2026 index release, because Costco/Sesame buys the same Success by Sesame plan and the same $299 Wegovy pill as Sesame Care, so the $408 was GLP Chart's stale basis and not a rate Sesame withdrew"
   },
   {
    "program": "Costco / Success by Sesame",
    "slug": "costco-sesame",
    "from_usd": 358,
    "to_usd": 398,
    "recorded": "2026-09-04",
    "first_restated": "2026-08-31",
    "last_restated": "2026-08-31",
    "reason": "moved from the prepaid rate to the month-to-month total"
   },
   {
    "program": "Found",
    "slug": "found",
    "from_usd": 169,
    "to_usd": 289,
    "recorded": "2026-09-04",
    "first_restated": "2026-08-03",
    "last_restated": "2026-08-31",
    "reason": "moved from the prepaid rate to the month-to-month total"
   },
   {
    "program": "Lemonaid Health",
    "slug": "lemonaid-health",
    "from_usd": 298,
    "to_usd": 348,
    "recorded": "2026-09-04",
    "first_restated": "2026-08-03",
    "last_restated": "2026-08-31",
    "reason": "moved from the prepaid rate to the month-to-month total"
   },
   {
    "program": "Ro Body",
    "slug": "ro",
    "from_usd": 373,
    "to_usd": 448,
    "recorded": "2026-09-04",
    "first_restated": "2026-08-03",
    "last_restated": "2026-08-31",
    "reason": "moved from the prepaid rate to the month-to-month total"
   },
   {
    "program": "Sesame Care",
    "slug": "sesame-care",
    "from_usd": 358,
    "to_usd": 398,
    "recorded": "2026-09-04",
    "first_restated": "2026-08-31",
    "last_restated": "2026-08-31",
    "reason": "moved from the prepaid rate to the month-to-month total"
   },
   {
    "program": "Shed",
    "slug": "shed",
    "from_usd": 159,
    "to_usd": 199,
    "recorded": "2026-09-04",
    "first_restated": "2026-08-10",
    "last_restated": "2026-08-31",
    "reason": "moved from the prepaid rate to the month-to-month total"
   }
  ],
  "moved_on_the_matched_panel": [
   {
    "slug": "goodrx-weight-loss",
    "program": "GoodRx for Weight Loss",
    "previous_usd": 388,
    "current_usd": 338,
    "change_usd": -50
   }
  ],
  "previous_release_as_published": {
   "release_month": "2026-09",
   "data_month": "2026-08",
   "method_version": "1.0",
   "revision": 2,
   "median_all_in_usd": 348,
   "compounded_semaglutide_floor_usd": 178,
   "branded_floor_usd": 299
  },
  "note": "The change covers the 18 programs priced in both August 2026 and September 2026, with August restated for every price GLP Chart later corrected. The restated figures appear in this release only. The September 2026 release stands as published."
 },
 "series": {
  "compounded_semaglutide_floor": [
   {
    "month": "2026-06",
    "label": "June 2026",
    "value": 199,
    "checks": 3,
    "n_programs": 1,
    "programs_at_the_floor": [
     "Shed"
    ],
    "matched_change": null,
    "weekly": [
     {
      "date": "2026-06-15",
      "price": 249,
      "program": "Shed",
      "programs_priced": 1
     },
     {
      "date": "2026-06-22",
      "price": 189,
      "program": "Shed",
      "programs_priced": 1
     },
     {
      "date": "2026-06-29",
      "price": 199,
      "program": "Shed",
      "programs_priced": 1
     }
    ]
   },
   {
    "month": "2026-07",
    "label": "July 2026",
    "value": 199,
    "checks": 4,
    "n_programs": 1,
    "programs_at_the_floor": [
     "Shed"
    ],
    "matched_change": {
     "n_programs": 1,
     "previous_usd": 199,
     "current_usd": 199,
     "change_usd": 0,
     "change_pct": 0
    },
    "weekly": [
     {
      "date": "2026-07-06",
      "price": 199,
      "program": "Shed",
      "programs_priced": 1
     },
     {
      "date": "2026-07-13",
      "price": 199,
      "program": "Shed",
      "programs_priced": 1
     },
     {
      "date": "2026-07-20",
      "price": 199,
      "program": "Shed",
      "programs_priced": 1
     },
     {
      "date": "2026-07-27",
      "price": 199,
      "program": "Shed",
      "programs_priced": 1
     }
    ]
   },
   {
    "month": "2026-08",
    "label": "August 2026",
    "value": 199,
    "checks": 5,
    "n_programs": 1,
    "programs_at_the_floor": [
     "Shed"
    ],
    "matched_change": {
     "n_programs": 1,
     "previous_usd": 199,
     "current_usd": 199,
     "change_usd": 0,
     "change_pct": 0
    },
    "weekly": [
     {
      "date": "2026-08-03",
      "price": 199,
      "program": "Shed",
      "programs_priced": 1
     },
     {
      "date": "2026-08-10",
      "price": 199,
      "program": "Shed",
      "programs_priced": 1
     },
     {
      "date": "2026-08-17",
      "price": 199,
      "program": "Shed",
      "programs_priced": 1
     },
     {
      "date": "2026-08-24",
      "price": 199,
      "program": "Shed",
      "programs_priced": 1
     },
     {
      "date": "2026-08-31",
      "price": 199,
      "program": "Shed",
      "programs_priced": 1
     }
    ]
   },
   {
    "month": "2026-09",
    "label": "September 2026",
    "value": 199,
    "checks": 4,
    "n_programs": 2,
    "programs_at_the_floor": [
     "Shed"
    ],
    "matched_change": {
     "n_programs": 1,
     "previous_usd": 199,
     "current_usd": 199,
     "change_usd": 0,
     "change_pct": 0
    },
    "weekly": [
     {
      "date": "2026-09-07",
      "price": 199,
      "program": "Shed",
      "programs_priced": 1
     },
     {
      "date": "2026-09-14",
      "price": 199,
      "program": "Shed",
      "programs_priced": 2
     },
     {
      "date": "2026-09-21",
      "price": 199,
      "program": "Shed",
      "programs_priced": 2
     },
     {
      "date": "2026-09-28",
      "price": 199,
      "program": "Shed",
      "programs_priced": 2
     }
    ]
   }
  ],
  "branded_floor": [
   {
    "month": "2026-05",
    "label": "May 2026",
    "value": 299,
    "checks": 1,
    "n_programs": 4,
    "programs_at_the_floor": [
     "Knownwell"
    ],
    "matched_change": null,
    "weekly": [
     {
      "date": "2026-05-25",
      "price": 299,
      "program": "Knownwell",
      "programs_priced": 4
     }
    ]
   },
   {
    "month": "2026-06",
    "label": "June 2026",
    "value": 299,
    "checks": 5,
    "n_programs": 7,
    "programs_at_the_floor": [
     "Knownwell",
     "Sam's Club Member Health"
    ],
    "matched_change": {
     "n_programs": 4,
     "previous_usd": 299,
     "current_usd": 299,
     "change_usd": 0,
     "change_pct": 0
    },
    "weekly": [
     {
      "date": "2026-06-01",
      "price": 299,
      "program": "Knownwell",
      "programs_priced": 4
     },
     {
      "date": "2026-06-08",
      "price": 299,
      "program": "Knownwell",
      "programs_priced": 4
     },
     {
      "date": "2026-06-15",
      "price": 99,
      "program": "WeightWatchers Clinic",
      "programs_priced": 7
     },
     {
      "date": "2026-06-22",
      "price": 149,
      "program": "Sam's Club Member Health",
      "programs_priced": 7
     },
     {
      "date": "2026-06-29",
      "price": 299,
      "program": "Knownwell, Sam's Club Member Health",
      "programs_priced": 7
     }
    ]
   },
   {
    "month": "2026-07",
    "label": "July 2026",
    "value": 299,
    "checks": 4,
    "n_programs": 7,
    "programs_at_the_floor": [
     "Knownwell",
     "Sam's Club Member Health"
    ],
    "matched_change": {
     "n_programs": 7,
     "previous_usd": 299,
     "current_usd": 299,
     "change_usd": 0,
     "change_pct": 0
    },
    "weekly": [
     {
      "date": "2026-07-06",
      "price": 299,
      "program": "Knownwell, Sam's Club Member Health",
      "programs_priced": 7
     },
     {
      "date": "2026-07-13",
      "price": 299,
      "program": "Knownwell, Sam's Club Member Health",
      "programs_priced": 7
     },
     {
      "date": "2026-07-20",
      "price": 299,
      "program": "Knownwell, Sam's Club Member Health",
      "programs_priced": 7
     },
     {
      "date": "2026-07-27",
      "price": 299,
      "program": "Knownwell, Sam's Club Member Health",
      "programs_priced": 7
     }
    ]
   },
   {
    "month": "2026-08",
    "label": "August 2026",
    "value": 299,
    "checks": 5,
    "n_programs": 7,
    "programs_at_the_floor": [
     "Knownwell",
     "Sam's Club Member Health"
    ],
    "matched_change": {
     "n_programs": 7,
     "previous_usd": 299,
     "current_usd": 299,
     "change_usd": 0,
     "change_pct": 0
    },
    "weekly": [
     {
      "date": "2026-08-03",
      "price": 299,
      "program": "Knownwell, Sam's Club Member Health",
      "programs_priced": 7
     },
     {
      "date": "2026-08-10",
      "price": 299,
      "program": "Knownwell, Sam's Club Member Health",
      "programs_priced": 7
     },
     {
      "date": "2026-08-17",
      "price": 299,
      "program": "Knownwell, Sam's Club Member Health",
      "programs_priced": 7
     },
     {
      "date": "2026-08-24",
      "price": 299,
      "program": "Knownwell, Sam's Club Member Health",
      "programs_priced": 7
     },
     {
      "date": "2026-08-31",
      "price": 299,
      "program": "Knownwell, Sam's Club Member Health",
      "programs_priced": 7
     }
    ]
   },
   {
    "month": "2026-09",
    "label": "September 2026",
    "value": 299,
    "checks": 4,
    "n_programs": 7,
    "programs_at_the_floor": [
     "Knownwell"
    ],
    "matched_change": {
     "n_programs": 6,
     "previous_usd": 299,
     "current_usd": 299,
     "change_usd": 0,
     "change_pct": 0
    },
    "weekly": [
     {
      "date": "2026-09-07",
      "price": 299,
      "program": "Knownwell",
      "programs_priced": 7
     },
     {
      "date": "2026-09-14",
      "price": 299,
      "program": "Knownwell",
      "programs_priced": 7
     },
     {
      "date": "2026-09-21",
      "price": 299,
      "program": "Knownwell",
      "programs_priced": 7
     },
     {
      "date": "2026-09-28",
      "price": 299,
      "program": "Knownwell",
      "programs_priced": 7
     }
    ]
   }
  ],
  "median_all_in": [
   {
    "month": "2026-05",
    "label": "May 2026",
    "value": 299,
    "checks": 1,
    "n_programs": 11,
    "programs_at_the_floor": [],
    "matched_change": null,
    "weekly": [
     {
      "date": "2026-05-25",
      "price": 299,
      "program": "",
      "programs_priced": 11
     }
    ]
   },
   {
    "month": "2026-06",
    "label": "June 2026",
    "value": 299,
    "checks": 5,
    "n_programs": 18,
    "programs_at_the_floor": [],
    "matched_change": {
     "n_programs": 11,
     "previous_usd": 299,
     "current_usd": 299,
     "change_usd": 0,
     "change_pct": 0
    },
    "weekly": [
     {
      "date": "2026-06-01",
      "price": 299,
      "program": "",
      "programs_priced": 11
     },
     {
      "date": "2026-06-08",
      "price": 299,
      "program": "",
      "programs_priced": 11
     },
     {
      "date": "2026-06-15",
      "price": 299,
      "program": "",
      "programs_priced": 17
     },
     {
      "date": "2026-06-22",
      "price": 299,
      "program": "",
      "programs_priced": 18
     },
     {
      "date": "2026-06-29",
      "price": 323.5,
      "program": "",
      "programs_priced": 18
     }
    ]
   },
   {
    "month": "2026-07",
    "label": "July 2026",
    "value": 327.5,
    "checks": 4,
    "n_programs": 18,
    "programs_at_the_floor": [],
    "matched_change": {
     "n_programs": 18,
     "previous_usd": 299,
     "current_usd": 327.5,
     "change_usd": 28.5,
     "change_pct": 9.53
    },
    "weekly": [
     {
      "date": "2026-07-06",
      "price": 323.5,
      "program": "",
      "programs_priced": 18
     },
     {
      "date": "2026-07-13",
      "price": 323.5,
      "program": "",
      "programs_priced": 18
     },
     {
      "date": "2026-07-20",
      "price": 331.5,
      "program": "",
      "programs_priced": 18
     },
     {
      "date": "2026-07-27",
      "price": 331.5,
      "program": "",
      "programs_priced": 18
     }
    ]
   },
   {
    "month": "2026-08",
    "label": "August 2026",
    "value": 328,
    "checks": 5,
    "n_programs": 19,
    "programs_at_the_floor": [],
    "matched_change": {
     "n_programs": 18,
     "previous_usd": 327.5,
     "current_usd": 331.5,
     "change_usd": 4,
     "change_pct": 1.22
    },
    "weekly": [
     {
      "date": "2026-08-03",
      "price": 331.5,
      "program": "",
      "programs_priced": 18
     },
     {
      "date": "2026-08-10",
      "price": 331.5,
      "program": "",
      "programs_priced": 18
     },
     {
      "date": "2026-08-17",
      "price": 328,
      "program": "",
      "programs_priced": 19
     },
     {
      "date": "2026-08-24",
      "price": 328,
      "program": "",
      "programs_priced": 19
     },
     {
      "date": "2026-08-31",
      "price": 328,
      "program": "",
      "programs_priced": 19
     }
    ]
   },
   {
    "month": "2026-09",
    "label": "September 2026",
    "value": 333,
    "checks": 4,
    "n_programs": 20,
    "programs_at_the_floor": [],
    "matched_change": {
     "n_programs": 18,
     "previous_usd": 338,
     "current_usd": 333,
     "change_usd": -5,
     "change_pct": -1.48
    },
    "weekly": [
     {
      "date": "2026-09-07",
      "price": 338,
      "program": "",
      "programs_priced": 19
     },
     {
      "date": "2026-09-14",
      "price": 333,
      "program": "",
      "programs_priced": 20
     },
     {
      "date": "2026-09-21",
      "price": 333,
      "program": "",
      "programs_priced": 20
     },
     {
      "date": "2026-09-28",
      "price": 333,
      "program": "",
      "programs_priced": 20
     }
    ]
   }
  ]
 },
 "moves": [],
 "panel_moves_prior_month": [],
 "nadac": {
  "what": "What a US retail pharmacy pays to acquire a month of the branded drug, from the CMS National Average Drug Acquisition Cost file.",
  "not": "NADAC is an acquisition-cost benchmark, not pharmacy margin.",
  "credit": "NADAC dashboards have been published free by 46brooklyn Research since 2019.",
  "effective_date": "2026-08-19",
  "source_url": "https://download.medicaid.gov/data/nadac-national-average-drug-acquisition-cost-09-02-2026.csv",
  "acquisition_to_cash": [
   {
    "drug": "Wegovy",
    "monthly_acquisition_low_usd": 1302.24,
    "monthly_acquisition_high_usd": 1306.73,
    "cheapest_verified_cash_usd": 299,
    "cheapest_verified_cash_programs": [
     "Sam's Club Member Health"
    ],
    "cash_minus_acquisition_usd": -1003.24
   },
   {
    "drug": "Zepbound",
    "monthly_acquisition_low_usd": 481.67,
    "monthly_acquisition_high_usd": 1052.23,
    "cheapest_verified_cash_usd": 449,
    "cheapest_verified_cash_programs": [
     "Ro Body"
    ],
    "cash_minus_acquisition_usd": -32.67
   }
  ],
  "packaging_spread": [
   {
    "brand": "ZEPBOUND",
    "dose_mg": 2.5,
    "multi_dose_monthly_usd": 482.28,
    "single_dose_monthly_usd": 1052.23,
    "gap_usd": 569.95,
    "ratio": 2.18
   },
   {
    "brand": "ZEPBOUND",
    "dose_mg": 5,
    "multi_dose_monthly_usd": 482.16,
    "single_dose_monthly_usd": 1052.03,
    "gap_usd": 569.87,
    "ratio": 2.18
   },
   {
    "brand": "ZEPBOUND",
    "dose_mg": 7.5,
    "multi_dose_monthly_usd": 481.67,
    "single_dose_monthly_usd": 1051.56,
    "gap_usd": 569.89,
    "ratio": 2.18
   },
   {
    "brand": "ZEPBOUND",
    "dose_mg": 10,
    "multi_dose_monthly_usd": 675.26,
    "single_dose_monthly_usd": 1051.54,
    "gap_usd": 376.28,
    "ratio": 1.56
   },
   {
    "brand": "ZEPBOUND",
    "dose_mg": 12.5,
    "multi_dose_monthly_usd": 678.03,
    "single_dose_monthly_usd": 1051.54,
    "gap_usd": 373.51,
    "ratio": 1.55
   },
   {
    "brand": "ZEPBOUND",
    "dose_mg": 15,
    "multi_dose_monthly_usd": 672.06,
    "single_dose_monthly_usd": 1051.4,
    "gap_usd": 379.34,
    "ratio": 1.56
   }
  ]
 },
 "sources": {
  "prices": "web/data/providers.json, verified against each program's own published pricing page every Monday",
  "weekly_record": "web/data/price-history.json",
  "corrections": "web/data/price-history.json basis_changes",
  "product_changes": "web/data/price-history.json product_changes",
  "delistings": "web/data/weekly-changes-archive.json",
  "acquisition_cost": "https://download.medicaid.gov/data/nadac-national-average-drug-acquisition-cost-09-02-2026.csv",
  "prices_verified": "2026-09-28"
 },
 "method": {
  "version": "2.0",
  "universe": "Every program in the GLP Chart index that is active, prices in cash rather than an insurance copay, and publishes an all-in monthly price.",
  "compounded_rule": "Programs publishing one flat all-in monthly price covering compounded semaglutide at every dose. Entry and starting-dose prices are excluded.",
  "branded_rule": "Programs whose primary supply is branded medication and whose maintenance pricing is verified rather than estimated.",
  "monthly_value": "Each week we take the median, or the lowest, price across every program priced that week, and the month's value is the median of those weekly figures.",
  "product_rule": "A program that changes which drug or product its price covers counts as leaving and joining again, and the switch is named with its date and both prices.",
  "change_rule": "The change from the prior month counts only programs priced in both months, with any price we later corrected carried back into the prior month, so a program joining, leaving or being corrected never reads as a price move.",
  "prepaid_rule": "An observation equal to a program's published 12-month prepaid monthly rate is dropped, and a program whose only published rate is a block of months bought up front is left out.",
  "classification_note": "Programs are classified by the pricing model they publish today; the weekly prices are the historical record, read with every recorded correction applied.",
  "method_change": "Version 2.0 replaces version 1.0's fixed panel. Version 1.0 took the median over the programs priced in every weekly check since May 2026 and set it against the prior month's figure, so a program leaving, a program returning or a price we corrected could move the headline.",
  "dropped_observations": [],
  "excluded": "Insurance copays, introductory and starter-dose rates, prepaid plan rates, and programs that publish no ongoing price."
 }
}