{
    "Meta Data": {
        "1. Information": "Daily Prices (open, high, low, close) and Volumes",
        "2. Symbol": "BIIB",
        "3. Last Refreshed": "2025-10-22",
        "4. Output Size": "Compact",
        "5. Time Zone": "US/Eastern"
    },
    "Time Series (Daily)": {
        "2025-10-22": {
            "1. open": "147.3700",
            "2. high": "149.1199",
            "3. low": "146.2500",
            "4. close": "147.7200",
            "5. volume": "1403299"
        },
        "2025-10-21": {
            "1. open": "146.0900",
            "2. high": "147.8900",
            "3. low": "144.2900",
            "4. close": "146.2200",
            "5. volume": "895048"
        },
        "2025-10-20": {
            "1. open": "143.3100",
            "2. high": "147.4700",
            "3. low": "142.4100",
            "4. close": "146.6300",
            "5. volume": "1316452"
        },
        "2025-10-17": {
            "1. open": "142.1000",
            "2. high": "144.3250",
            "3. low": "141.6700",
            "4. close": "143.0000",
            "5. volume": "1010007"
        },
        "2025-10-16": {
            "1. open": "144.0500",
            "2. high": "147.4800",
            "3. low": "141.7000",
            "4. close": "142.2600",
            "5. volume": "1469099"
        },
        "2025-10-15": {
            "1. open": "144.7400",
            "2. high": "145.1850",
            "3. low": "142.2900",
            "4. close": "143.6600",
            "5. volume": "1337176"
        },
        "2025-10-14": {
            "1. open": "144.0900",
            "2. high": "146.8800",
            "3. low": "142.1950",
            "4. close": "145.3100",
            "5. volume": "1283553"
        },
        "2025-10-13": {
            "1. open": "146.4700",
            "2. high": "147.5550",
            "3. low": "144.6500",
            "4. close": "144.6900",
            "5. volume": "1124466"
        },
        "2025-10-10": {
            "1. open": "150.0000",
            "2. high": "150.2000",
            "3. low": "144.7400",
            "4. close": "146.5700",
            "5. volume": "1724990"
        },
        "2025-10-09": {
            "1. open": "151.3700",
            "2. high": "152.1500",
            "3. low": "148.1700",
            "4. close": "149.6100",
            "5. volume": "1600465"
        },
        "2025-10-08": {
            "1. open": "152.3600",
            "2. high": "152.3600",
            "3. low": "149.6400",
            "4. close": "150.9700",
            "5. volume": "1333277"
        },
        "2025-10-07": {
            "1. open": "154.5200",
            "2. high": "154.5750",
            "3. low": "151.9700",
            "4. close": "152.2100",
            "5. volume": "1372833"
        },
        "2025-10-06": {
            "1. open": "159.6050",
            "2. high": "159.7005",
            "3. low": "153.1000",
            "4. close": "154.0500",
            "5. volume": "1817888"
        },
        "2025-10-03": {
            "1. open": "156.4600",
            "2. high": "160.2000",
            "3. low": "155.9700",
            "4. close": "159.8800",
            "5. volume": "2878796"
        },
        "2025-10-02": {
            "1. open": "154.0000",
            "2. high": "157.8500",
            "3. low": "152.2200",
            "4. close": "155.2500",
            "5. volume": "2882551"
        },
        "2025-10-01": {
            "1. open": "140.8200",
            "2. high": "154.4400",
            "3. low": "140.7000",
            "4. close": "154.2200",
            "5. volume": "4059913"
        },
        "2025-09-30": {
            "1. open": "138.4600",
            "2. high": "141.0400",
            "3. low": "136.9350",
            "4. close": "140.0800",
            "5. volume": "1369066"
        },
        "2025-09-29": {
            "1. open": "137.4900",
            "2. high": "138.8000",
            "3. low": "135.3900",
            "4. close": "138.5200",
            "5. volume": "1285534"
        },
        "2025-09-26": {
            "1. open": "136.7900",
            "2. high": "138.0000",
            "3. low": "135.8100",
            "4. close": "137.3700",
            "5. volume": "1677223"
        },
        "2025-09-25": {
            "1. open": "138.4000",
            "2. high": "140.6745",
            "3. low": "135.4050",
            "4. close": "135.6700",
            "5. volume": "1260311"
        },
        "2025-09-24": {
            "1. open": "138.5200",
            "2. high": "139.2800",
            "3. low": "136.2000",
            "4. close": "137.6700",
            "5. volume": "1309389"
        },
        "2025-09-23": {
            "1. open": "140.2700",
            "2. high": "141.3800",
            "3. low": "138.7250",
            "4. close": "139.3100",
            "5. volume": "1103063"
        },
        "2025-09-22": {
            "1. open": "142.1200",
            "2. high": "142.6400",
            "3. low": "140.0200",
            "4. close": "140.6600",
            "5. volume": "1446078"
        },
        "2025-09-19": {
            "1. open": "143.9600",
            "2. high": "144.4300",
            "3. low": "141.4900",
            "4. close": "142.5000",
            "5. volume": "3748754"
        },
        "2025-09-18": {
            "1. open": "146.3000",
            "2. high": "146.4500",
            "3. low": "143.3700",
            "4. close": "143.8100",
            "5. volume": "1514476"
        },
        "2025-09-17": {
            "1. open": "143.4800",
            "2. high": "146.6800",
            "3. low": "143.3900",
            "4. close": "144.8700",
            "5. volume": "1502045"
        },
        "2025-09-16": {
            "1. open": "143.5100",
            "2. high": "147.2300",
            "3. low": "143.0200",
            "4. close": "143.6800",
            "5. volume": "1936056"
        },
        "2025-09-15": {
            "1. open": "144.8200",
            "2. high": "145.9900",
            "3. low": "141.1200",
            "4. close": "143.3200",
            "5. volume": "1432587"
        },
        "2025-09-12": {
            "1. open": "148.0800",
            "2. high": "150.2800",
            "3. low": "144.8400",
            "4. close": "144.8600",
            "5. volume": "1810892"
        },
        "2025-09-11": {
            "1. open": "143.4700",
            "2. high": "149.0700",
            "3. low": "142.8600",
            "4. close": "148.8400",
            "5. volume": "1714600"
        },
        "2025-09-10": {
            "1. open": "143.0000",
            "2. high": "143.4500",
            "3. low": "139.5400",
            "4. close": "142.6100",
            "5. volume": "1278801"
        },
        "2025-09-09": {
            "1. open": "141.1600",
            "2. high": "143.7400",
            "3. low": "140.5100",
            "4. close": "143.6000",
            "5. volume": "1490789"
        },
        "2025-09-08": {
            "1. open": "139.9950",
            "2. high": "143.2300",
            "3. low": "137.1954",
            "4. close": "141.3500",
            "5. volume": "1624388"
        },
        "2025-09-05": {
            "1. open": "140.1300",
            "2. high": "144.2000",
            "3. low": "139.9600",
            "4. close": "140.6700",
            "5. volume": "1561897"
        },
        "2025-09-04": {
            "1. open": "141.7800",
            "2. high": "142.2800",
            "3. low": "137.1401",
            "4. close": "139.9400",
            "5. volume": "1529091"
        },
        "2025-09-03": {
            "1. open": "139.5600",
            "2. high": "145.2699",
            "3. low": "139.5600",
            "4. close": "141.6200",
            "5. volume": "2244285"
        },
        "2025-09-02": {
            "1. open": "133.5500",
            "2. high": "140.0600",
            "3. low": "133.5300",
            "4. close": "139.6300",
            "5. volume": "2466935"
        },
        "2025-08-29": {
            "1. open": "132.5000",
            "2. high": "133.4800",
            "3. low": "131.5200",
            "4. close": "132.2200",
            "5. volume": "1083013"
        },
        "2025-08-28": {
            "1. open": "136.3600",
            "2. high": "136.3600",
            "3. low": "132.0400",
            "4. close": "132.6500",
            "5. volume": "1558097"
        },
        "2025-08-27": {
            "1. open": "136.0000",
            "2. high": "138.5000",
            "3. low": "135.7900",
            "4. close": "136.3600",
            "5. volume": "1403137"
        },
        "2025-08-26": {
            "1. open": "135.8500",
            "2. high": "136.9100",
            "3. low": "135.2223",
            "4. close": "136.7200",
            "5. volume": "1580037"
        },
        "2025-08-25": {
            "1. open": "139.0100",
            "2. high": "139.7500",
            "3. low": "136.1400",
            "4. close": "136.3600",
            "5. volume": "861976"
        },
        "2025-08-22": {
            "1. open": "140.4100",
            "2. high": "142.3200",
            "3. low": "138.6500",
            "4. close": "139.3100",
            "5. volume": "1199214"
        },
        "2025-08-21": {
            "1. open": "138.2600",
            "2. high": "140.2000",
            "3. low": "137.5900",
            "4. close": "139.1200",
            "5. volume": "1074281"
        },
        "2025-08-20": {
            "1. open": "139.1000",
            "2. high": "140.5000",
            "3. low": "137.7700",
            "4. close": "138.9900",
            "5. volume": "1286658"
        },
        "2025-08-19": {
            "1. open": "136.3700",
            "2. high": "139.5800",
            "3. low": "136.0200",
            "4. close": "138.8600",
            "5. volume": "1447803"
        },
        "2025-08-18": {
            "1. open": "140.0000",
            "2. high": "141.1750",
            "3. low": "135.7350",
            "4. close": "135.9100",
            "5. volume": "1813871"
        },
        "2025-08-15": {
            "1. open": "136.1600",
            "2. high": "138.8300",
            "3. low": "135.8800",
            "4. close": "138.6000",
            "5. volume": "1644116"
        },
        "2025-08-14": {
            "1. open": "134.5100",
            "2. high": "135.2300",
            "3. low": "132.1600",
            "4. close": "134.9400",
            "5. volume": "1169840"
        },
        "2025-08-13": {
            "1. open": "129.6200",
            "2. high": "135.3800",
            "3. low": "129.4004",
            "4. close": "135.1900",
            "5. volume": "1549212"
        },
        "2025-08-12": {
            "1. open": "128.4700",
            "2. high": "131.1000",
            "3. low": "128.2500",
            "4. close": "128.9300",
            "5. volume": "1127617"
        },
        "2025-08-11": {
            "1. open": "131.1600",
            "2. high": "133.7300",
            "3. low": "127.7100",
            "4. close": "128.0000",
            "5. volume": "1070293"
        },
        "2025-08-08": {
            "1. open": "127.5000",
            "2. high": "131.2600",
            "3. low": "127.0000",
            "4. close": "130.6700",
            "5. volume": "1327710"
        },
        "2025-08-07": {
            "1. open": "130.0200",
            "2. high": "130.6778",
            "3. low": "127.6500",
            "4. close": "127.7500",
            "5. volume": "1718239"
        },
        "2025-08-06": {
            "1. open": "132.4200",
            "2. high": "132.6700",
            "3. low": "128.9000",
            "4. close": "129.3400",
            "5. volume": "1538660"
        },
        "2025-08-05": {
            "1. open": "131.9100",
            "2. high": "134.1600",
            "3. low": "131.5650",
            "4. close": "132.8900",
            "5. volume": "1395619"
        },
        "2025-08-04": {
            "1. open": "132.3300",
            "2. high": "133.9800",
            "3. low": "130.3900",
            "4. close": "132.2000",
            "5. volume": "1897855"
        },
        "2025-08-01": {
            "1. open": "128.9550",
            "2. high": "132.9000",
            "3. low": "124.5561",
            "4. close": "131.9500",
            "5. volume": "2798550"
        },
        "2025-07-31": {
            "1. open": "133.0000",
            "2. high": "135.4300",
            "3. low": "127.2425",
            "4. close": "128.0000",
            "5. volume": "3240096"
        },
        "2025-07-30": {
            "1. open": "128.5600",
            "2. high": "129.7800",
            "3. low": "125.9700",
            "4. close": "126.6400",
            "5. volume": "1892068"
        },
        "2025-07-29": {
            "1. open": "128.5350",
            "2. high": "129.2600",
            "3. low": "127.6000",
            "4. close": "127.9000",
            "5. volume": "1108783"
        },
        "2025-07-28": {
            "1. open": "131.3500",
            "2. high": "131.8500",
            "3. low": "128.4285",
            "4. close": "129.2800",
            "5. volume": "1045656"
        },
        "2025-07-25": {
            "1. open": "133.0500",
            "2. high": "133.0500",
            "3. low": "130.1300",
            "4. close": "131.5200",
            "5. volume": "977034"
        },
        "2025-07-24": {
            "1. open": "130.7800",
            "2. high": "132.6500",
            "3. low": "130.0000",
            "4. close": "132.5900",
            "5. volume": "1280623"
        },
        "2025-07-23": {
            "1. open": "129.4400",
            "2. high": "131.2500",
            "3. low": "128.3600",
            "4. close": "130.9800",
            "5. volume": "1127502"
        },
        "2025-07-22": {
            "1. open": "123.3800",
            "2. high": "127.9400",
            "3. low": "123.3800",
            "4. close": "127.8500",
            "5. volume": "1319120"
        },
        "2025-07-21": {
            "1. open": "124.9800",
            "2. high": "125.4150",
            "3. low": "121.0500",
            "4. close": "122.6800",
            "5. volume": "1403476"
        },
        "2025-07-18": {
            "1. open": "129.3650",
            "2. high": "129.5800",
            "3. low": "124.6800",
            "4. close": "124.9900",
            "5. volume": "1524966"
        },
        "2025-07-17": {
            "1. open": "128.1800",
            "2. high": "129.2050",
            "3. low": "127.3100",
            "4. close": "128.6900",
            "5. volume": "1151166"
        },
        "2025-07-16": {
            "1. open": "128.4950",
            "2. high": "129.5100",
            "3. low": "127.4200",
            "4. close": "128.4600",
            "5. volume": "1234689"
        },
        "2025-07-15": {
            "1. open": "132.9600",
            "2. high": "133.3600",
            "3. low": "127.4700",
            "4. close": "127.5000",
            "5. volume": "1317080"
        },
        "2025-07-14": {
            "1. open": "133.5600",
            "2. high": "134.2100",
            "3. low": "132.4000",
            "4. close": "133.1100",
            "5. volume": "694370"
        },
        "2025-07-11": {
            "1. open": "133.4900",
            "2. high": "134.5900",
            "3. low": "132.3700",
            "4. close": "134.2100",
            "5. volume": "1137577"
        },
        "2025-07-10": {
            "1. open": "133.4500",
            "2. high": "137.1900",
            "3. low": "132.7700",
            "4. close": "135.3300",
            "5. volume": "992049"
        },
        "2025-07-09": {
            "1. open": "134.5600",
            "2. high": "137.8400",
            "3. low": "131.6700",
            "4. close": "133.0200",
            "5. volume": "1528822"
        },
        "2025-07-08": {
            "1. open": "130.3200",
            "2. high": "135.5800",
            "3. low": "130.3200",
            "4. close": "134.4600",
            "5. volume": "1350819"
        },
        "2025-07-07": {
            "1. open": "132.1000",
            "2. high": "133.2000",
            "3. low": "129.0800",
            "4. close": "130.1300",
            "5. volume": "1086980"
        },
        "2025-07-03": {
            "1. open": "133.4900",
            "2. high": "134.4200",
            "3. low": "132.2100",
            "4. close": "132.8700",
            "5. volume": "633328"
        },
        "2025-07-02": {
            "1. open": "130.0000",
            "2. high": "134.6300",
            "3. low": "129.8450",
            "4. close": "133.1900",
            "5. volume": "1474231"
        },
        "2025-07-01": {
            "1. open": "124.9350",
            "2. high": "134.7500",
            "3. low": "124.9350",
            "4. close": "130.0700",
            "5. volume": "1919845"
        },
        "2025-06-30": {
            "1. open": "126.2950",
            "2. high": "126.5300",
            "3. low": "123.9000",
            "4. close": "125.5900",
            "5. volume": "1184454"
        },
        "2025-06-27": {
            "1. open": "127.2000",
            "2. high": "128.2499",
            "3. low": "125.6000",
            "4. close": "126.0800",
            "5. volume": "1100003"
        },
        "2025-06-26": {
            "1. open": "127.8900",
            "2. high": "129.2700",
            "3. low": "126.4600",
            "4. close": "126.9200",
            "5. volume": "864951"
        },
        "2025-06-25": {
            "1. open": "126.3000",
            "2. high": "127.9800",
            "3. low": "125.1300",
            "4. close": "127.3100",
            "5. volume": "1095917"
        },
        "2025-06-24": {
            "1. open": "125.5700",
            "2. high": "127.3600",
            "3. low": "125.0200",
            "4. close": "126.3100",
            "5. volume": "938208"
        },
        "2025-06-23": {
            "1. open": "126.9000",
            "2. high": "127.6800",
            "3. low": "123.2100",
            "4. close": "124.7600",
            "5. volume": "1190232"
        },
        "2025-06-20": {
            "1. open": "127.9600",
            "2. high": "128.6400",
            "3. low": "126.1200",
            "4. close": "127.0400",
            "5. volume": "2166571"
        },
        "2025-06-18": {
            "1. open": "127.0600",
            "2. high": "127.8800",
            "3. low": "125.2400",
            "4. close": "126.5400",
            "5. volume": "2331174"
        },
        "2025-06-17": {
            "1. open": "130.2700",
            "2. high": "130.7000",
            "3. low": "126.4900",
            "4. close": "126.5600",
            "5. volume": "1154818"
        },
        "2025-06-16": {
            "1. open": "131.4900",
            "2. high": "131.5800",
            "3. low": "128.8300",
            "4. close": "131.0400",
            "5. volume": "1112006"
        },
        "2025-06-13": {
            "1. open": "130.8700",
            "2. high": "132.4850",
            "3. low": "130.1050",
            "4. close": "130.6500",
            "5. volume": "1207509"
        },
        "2025-06-12": {
            "1. open": "132.9300",
            "2. high": "134.1200",
            "3. low": "131.4700",
            "4. close": "132.3100",
            "5. volume": "1147651"
        },
        "2025-06-11": {
            "1. open": "135.9000",
            "2. high": "136.4100",
            "3. low": "132.9010",
            "4. close": "133.0600",
            "5. volume": "1331148"
        },
        "2025-06-10": {
            "1. open": "134.2500",
            "2. high": "136.8400",
            "3. low": "133.4200",
            "4. close": "135.4900",
            "5. volume": "991129"
        },
        "2025-06-09": {
            "1. open": "134.0600",
            "2. high": "135.6850",
            "3. low": "132.9300",
            "4. close": "134.1500",
            "5. volume": "1081560"
        },
        "2025-06-06": {
            "1. open": "131.5500",
            "2. high": "133.7200",
            "3. low": "131.4500",
            "4. close": "133.1300",
            "5. volume": "1166151"
        },
        "2025-06-05": {
            "1. open": "131.8700",
            "2. high": "132.1200",
            "3. low": "129.6100",
            "4. close": "130.3600",
            "5. volume": "1235671"
        },
        "2025-06-04": {
            "1. open": "132.4500",
            "2. high": "133.6600",
            "3. low": "131.6700",
            "4. close": "131.8600",
            "5. volume": "1472904"
        },
        "2025-06-03": {
            "1. open": "130.7700",
            "2. high": "134.7400",
            "3. low": "129.5100",
            "4. close": "131.8400",
            "5. volume": "1825014"
        },
        "2025-06-02": {
            "1. open": "129.5900",
            "2. high": "131.8500",
            "3. low": "128.0700",
            "4. close": "131.1400",
            "5. volume": "1868120"
        }
    }
}