{"data":[{"settlementDate":"2026-09-30","symbol":"MASS","shortQty":2727932,"avgDailyVol":421862,"daysToCover":"6.47","changePct":"-0.69"},{"settlementDate":"2026-09-15","symbol":"MASS","shortQty":2746771,"avgDailyVol":295641,"daysToCover":"9.29","changePct":"-2.23"},{"settlementDate":"2026-08-31","symbol":"MASS","shortQty":2809467,"avgDailyVol":506686,"daysToCover":"5.54","changePct":"0.61"},{"settlementDate":"2026-08-14","symbol":"MASS","shortQty":2792533,"avgDailyVol":551482,"daysToCover":"5.06","changePct":"-17.60"},{"settlementDate":"2026-07-31","symbol":"MASS","shortQty":3389065,"avgDailyVol":307527,"daysToCover":"11.02","changePct":"4.77"},{"settlementDate":"2026-07-15","symbol":"MASS","shortQty":3234821,"avgDailyVol":216223,"daysToCover":"14.96","changePct":"5.04"},{"settlementDate":"2026-06-30","symbol":"MASS","shortQty":3079686,"avgDailyVol":445876,"daysToCover":"6.91","changePct":"-3.94"},{"settlementDate":"2026-06-15","symbol":"MASS","shortQty":3206098,"avgDailyVol":233153,"daysToCover":"13.75","changePct":"1.00"},{"settlementDate":"2026-05-29","symbol":"MASS","shortQty":3174344,"avgDailyVol":279243,"daysToCover":"11.37","changePct":"-5.05"},{"settlementDate":"2026-05-15","symbol":"MASS","shortQty":3343043,"avgDailyVol":316199,"daysToCover":"10.57","changePct":"-3.88"},{"settlementDate":"2026-04-30","symbol":"MASS","shortQty":3477845,"avgDailyVol":230455,"daysToCover":"15.09","changePct":"0.02"},{"settlementDate":"2026-04-15","symbol":"MASS","shortQty":3477200,"avgDailyVol":253596,"daysToCover":"13.71","changePct":"-4.14"},{"settlementDate":"2026-03-31","symbol":"MASS","shortQty":3627295,"avgDailyVol":270943,"daysToCover":"13.39","changePct":"-3.33"},{"settlementDate":"2026-03-13","symbol":"MASS","shortQty":3752369,"avgDailyVol":331399,"daysToCover":"11.32","changePct":"-3.20"},{"settlementDate":"2026-02-27","symbol":"MASS","shortQty":3876393,"avgDailyVol":184525,"daysToCover":"21.01","changePct":"1.25"},{"settlementDate":"2026-02-13","symbol":"MASS","shortQty":3828392,"avgDailyVol":333907,"daysToCover":"11.47","changePct":"20.03"},{"settlementDate":"2026-01-30","symbol":"MASS","shortQty":3189641,"avgDailyVol":439073,"daysToCover":"7.26","changePct":"-4.06"},{"settlementDate":"2026-01-15","symbol":"MASS","shortQty":3324662,"avgDailyVol":283329,"daysToCover":"11.73","changePct":"0.51"},{"settlementDate":"2025-12-31","symbol":"MASS","shortQty":3307634,"avgDailyVol":691564,"daysToCover":"4.78","changePct":"6.86"},{"settlementDate":"2025-12-15","symbol":"MASS","shortQty":3095434,"avgDailyVol":350743,"daysToCover":"8.83","changePct":"10.90"},{"settlementDate":"2025-11-28","symbol":"MASS","shortQty":2791075,"avgDailyVol":435868,"daysToCover":"6.40","changePct":"23.69"},{"settlementDate":"2025-11-14","symbol":"MASS","shortQty":2256517,"avgDailyVol":427714,"daysToCover":"5.28","changePct":"15.62"},{"settlementDate":"2025-10-31","symbol":"MASS","shortQty":1951697,"avgDailyVol":249812,"daysToCover":"7.81","changePct":"0.85"},{"settlementDate":"2025-10-15","symbol":"MASS","shortQty":1935261,"avgDailyVol":368662,"daysToCover":"5.25","changePct":"2.84"},{"settlementDate":"2025-09-30","symbol":"MASS","shortQty":1881869,"avgDailyVol":526325,"daysToCover":"3.58","changePct":"0.19"},{"settlementDate":"2025-09-15","symbol":"MASS","shortQty":1878376,"avgDailyVol":329630,"daysToCover":"5.70","changePct":"-4.14"},{"settlementDate":"2025-08-29","symbol":"MASS","shortQty":1959491,"avgDailyVol":201100,"daysToCover":"9.74","changePct":"-2.27"},{"settlementDate":"2025-08-15","symbol":"MASS","shortQty":2005074,"avgDailyVol":336365,"daysToCover":"5.96","changePct":"-1.19"},{"settlementDate":"2025-07-31","symbol":"MASS","shortQty":2029148,"avgDailyVol":264674,"daysToCover":"7.67","changePct":"-5.88"},{"settlementDate":"2025-07-15","symbol":"MASS","shortQty":2155993,"avgDailyVol":352905,"daysToCover":"6.11","changePct":"-13.67"},{"settlementDate":"2025-06-30","symbol":"MASS","shortQty":2497289,"avgDailyVol":987756,"daysToCover":"2.53","changePct":"7.24"},{"settlementDate":"2025-06-13","symbol":"MASS","shortQty":2328728,"avgDailyVol":543836,"daysToCover":"4.28","changePct":"6.10"},{"settlementDate":"2025-05-30","symbol":"MASS","shortQty":2194890,"avgDailyVol":640151,"daysToCover":"3.43","changePct":"-16.05"},{"settlementDate":"2025-05-15","symbol":"MASS","shortQty":2614622,"avgDailyVol":481542,"daysToCover":"5.43","changePct":"-5.99"},{"settlementDate":"2025-04-30","symbol":"MASS","shortQty":2781077,"avgDailyVol":531588,"daysToCover":"5.23","changePct":"-1.83"},{"settlementDate":"2025-04-15","symbol":"MASS","shortQty":2832880,"avgDailyVol":534607,"daysToCover":"5.30","changePct":"10.57"},{"settlementDate":"2025-03-31","symbol":"MASS","shortQty":2561981,"avgDailyVol":832006,"daysToCover":"3.08","changePct":"-9.98"},{"settlementDate":"2025-03-14","symbol":"MASS","shortQty":2846149,"avgDailyVol":15401808,"daysToCover":"1.00","changePct":"26.26"},{"settlementDate":"2025-02-28","symbol":"MASS","shortQty":2254192,"avgDailyVol":237589,"daysToCover":"9.49","changePct":"-1.01"},{"settlementDate":"2025-02-14","symbol":"MASS","shortQty":2277179,"avgDailyVol":297840,"daysToCover":"7.65","changePct":"18.08"},{"settlementDate":"2025-01-31","symbol":"MASS","shortQty":1928484,"avgDailyVol":673949,"daysToCover":"2.86","changePct":"0.45"},{"settlementDate":"2025-01-15","symbol":"MASS","shortQty":1919852,"avgDailyVol":1699650,"daysToCover":"1.13","changePct":"16.48"},{"settlementDate":"2024-12-31","symbol":"MASS","shortQty":1648216,"avgDailyVol":552636,"daysToCover":"2.98","changePct":"15.93"},{"settlementDate":"2024-12-13","symbol":"MASS","shortQty":1421713,"avgDailyVol":168351,"daysToCover":"8.44","changePct":"2.75"},{"settlementDate":"2024-11-29","symbol":"MASS","shortQty":1383638,"avgDailyVol":392802,"daysToCover":"3.52","changePct":"0.37"},{"settlementDate":"2024-11-15","symbol":"MASS","shortQty":1378486,"avgDailyVol":451581,"daysToCover":"3.05","changePct":"-4.97"},{"settlementDate":"2024-10-31","symbol":"MASS","shortQty":1450599,"avgDailyVol":99825,"daysToCover":"14.53","changePct":"5.85"},{"settlementDate":"2024-10-15","symbol":"MASS","shortQty":1370405,"avgDailyVol":120368,"daysToCover":"11.39","changePct":"1.33"},{"settlementDate":"2024-09-30","symbol":"MASS","shortQty":1352467,"avgDailyVol":168160,"daysToCover":"8.04","changePct":"2.14"},{"settlementDate":"2024-09-13","symbol":"MASS","shortQty":1324113,"avgDailyVol":194613,"daysToCover":"6.80","changePct":"1.06"},{"settlementDate":"2024-08-30","symbol":"MASS","shortQty":1310249,"avgDailyVol":266000,"daysToCover":"4.93","changePct":"-4.10"},{"settlementDate":"2024-08-15","symbol":"MASS","shortQty":1366301,"avgDailyVol":209178,"daysToCover":"6.53","changePct":"1.51"},{"settlementDate":"2024-07-31","symbol":"MASS","shortQty":1346003,"avgDailyVol":157148,"daysToCover":"8.57","changePct":"-1.66"},{"settlementDate":"2024-07-15","symbol":"MASS","shortQty":1368791,"avgDailyVol":174330,"daysToCover":"7.85","changePct":"10.80"},{"settlementDate":"2024-06-28","symbol":"MASS","shortQty":1235334,"avgDailyVol":284639,"daysToCover":"4.34","changePct":"6.25"},{"settlementDate":"2024-06-14","symbol":"MASS","shortQty":1162680,"avgDailyVol":157261,"daysToCover":"7.39","changePct":"9.81"},{"settlementDate":"2024-05-31","symbol":"MASS","shortQty":1058789,"avgDailyVol":180879,"daysToCover":"5.85","changePct":"1.23"},{"settlementDate":"2024-05-15","symbol":"MASS","shortQty":1045886,"avgDailyVol":434936,"daysToCover":"2.40","changePct":"-21.83"},{"settlementDate":"2024-04-30","symbol":"MASS","shortQty":1337956,"avgDailyVol":189316,"daysToCover":"7.07","changePct":"8.73"},{"settlementDate":"2024-04-15","symbol":"MASS","shortQty":1230488,"avgDailyVol":140273,"daysToCover":"8.77","changePct":"6.92"},{"settlementDate":"2024-03-28","symbol":"MASS","shortQty":1150808,"avgDailyVol":207789,"daysToCover":"5.54","changePct":"9.15"},{"settlementDate":"2024-03-15","symbol":"MASS","shortQty":1054375,"avgDailyVol":194962,"daysToCover":"5.41","changePct":"-1.70"},{"settlementDate":"2024-02-29","symbol":"MASS","shortQty":1072620,"avgDailyVol":135344,"daysToCover":"7.93","changePct":"-6.15"},{"settlementDate":"2024-02-15","symbol":"MASS","shortQty":1142860,"avgDailyVol":135276,"daysToCover":"8.45","changePct":"-11.58"},{"settlementDate":"2024-01-31","symbol":"MASS","shortQty":1292570,"avgDailyVol":165847,"daysToCover":"7.79","changePct":"-9.28"},{"settlementDate":"2023-12-29","symbol":"MASS","shortQty":1392473,"avgDailyVol":238955,"daysToCover":"5.83","changePct":"6.33"},{"settlementDate":"2023-12-15","symbol":"MASS","shortQty":1309519,"avgDailyVol":183672,"daysToCover":"7.13","changePct":"-8.31"},{"settlementDate":"2023-11-30","symbol":"MASS","shortQty":1428125,"avgDailyVol":124417,"daysToCover":"11.48","changePct":"1.40"},{"settlementDate":"2023-11-15","symbol":"MASS","shortQty":1408412,"avgDailyVol":209092,"daysToCover":"6.74","changePct":"3.84"},{"settlementDate":"2023-10-31","symbol":"MASS","shortQty":1356303,"avgDailyVol":132290,"daysToCover":"10.25","changePct":"-6.35"},{"settlementDate":"2023-10-13","symbol":"MASS","shortQty":1448262,"avgDailyVol":137348,"daysToCover":"10.54","changePct":"8.11"},{"settlementDate":"2023-09-29","symbol":"MASS","shortQty":1339573,"avgDailyVol":149363,"daysToCover":"8.97","changePct":"10.66"},{"settlementDate":"2023-09-15","symbol":"MASS","shortQty":1210484,"avgDailyVol":153932,"daysToCover":"7.86","changePct":"-0.17"},{"settlementDate":"2023-08-31","symbol":"MASS","shortQty":1212505,"avgDailyVol":135519,"daysToCover":"8.95","changePct":"-12.51"},{"settlementDate":"2023-08-15","symbol":"MASS","shortQty":1385813,"avgDailyVol":227443,"daysToCover":"6.09","changePct":"-3.19"},{"settlementDate":"2023-07-31","symbol":"MASS","shortQty":1431457,"avgDailyVol":196143,"daysToCover":"7.30","changePct":"-3.48"},{"settlementDate":"2023-07-14","symbol":"MASS","shortQty":1483030,"avgDailyVol":221647,"daysToCover":"6.69","changePct":"4.20"},{"settlementDate":"2023-06-30","symbol":"MASS","shortQty":1423213,"avgDailyVol":313651,"daysToCover":"4.54","changePct":"-2.88"},{"settlementDate":"2023-06-15","symbol":"MASS","shortQty":1465438,"avgDailyVol":172955,"daysToCover":"8.47","changePct":"-4.72"},{"settlementDate":"2023-05-31","symbol":"MASS","shortQty":1538111,"avgDailyVol":278458,"daysToCover":"5.52","changePct":"-10.08"},{"settlementDate":"2023-05-15","symbol":"MASS","shortQty":1710571,"avgDailyVol":236245,"daysToCover":"7.24","changePct":"0.76"},{"settlementDate":"2023-04-28","symbol":"MASS","shortQty":1697688,"avgDailyVol":126145,"daysToCover":"13.46","changePct":"-14.16"},{"settlementDate":"2023-04-14","symbol":"MASS","shortQty":1977769,"avgDailyVol":204308,"daysToCover":"9.68","changePct":"4.06"},{"settlementDate":"2023-03-31","symbol":"MASS","shortQty":1900644,"avgDailyVol":311433,"daysToCover":"6.10","changePct":"-15.91"},{"settlementDate":"2023-03-15","symbol":"MASS","shortQty":2260234,"avgDailyVol":404905,"daysToCover":"5.58","changePct":"21.67"},{"settlementDate":"2023-02-28","symbol":"MASS","shortQty":1857693,"avgDailyVol":294452,"daysToCover":"6.31","changePct":"-7.67"},{"settlementDate":"2023-02-15","symbol":"MASS","shortQty":2012034,"avgDailyVol":205803,"daysToCover":"9.78","changePct":"12.13"},{"settlementDate":"2023-01-31","symbol":"MASS","shortQty":1794305,"avgDailyVol":227990,"daysToCover":"7.87","changePct":"-17.19"},{"settlementDate":"2023-01-13","symbol":"MASS","shortQty":2166780,"avgDailyVol":304223,"daysToCover":"7.12","changePct":"1.81"},{"settlementDate":"2022-12-30","symbol":"MASS","shortQty":2128155,"avgDailyVol":280031,"daysToCover":"7.60","changePct":"4.27"},{"settlementDate":"2022-12-15","symbol":"MASS","shortQty":2041022,"avgDailyVol":240916,"daysToCover":"8.47","changePct":"-3.48"},{"settlementDate":"2022-11-30","symbol":"MASS","shortQty":2114510,"avgDailyVol":364795,"daysToCover":"5.80","changePct":"-7.47"},{"settlementDate":"2022-11-15","symbol":"MASS","shortQty":2285237,"avgDailyVol":445808,"daysToCover":"5.13","changePct":"2.29"},{"settlementDate":"2022-10-31","symbol":"MASS","shortQty":2234007,"avgDailyVol":201511,"daysToCover":"11.09","changePct":"2.77"},{"settlementDate":"2022-10-14","symbol":"MASS","shortQty":2173730,"avgDailyVol":193366,"daysToCover":"11.24","changePct":"-3.92"},{"settlementDate":"2022-09-30","symbol":"MASS","shortQty":2262530,"avgDailyVol":248115,"daysToCover":"9.12","changePct":"9.68"},{"settlementDate":"2022-09-15","symbol":"MASS","shortQty":2062816,"avgDailyVol":291471,"daysToCover":"7.08","changePct":"10.08"},{"settlementDate":"2022-08-31","symbol":"MASS","shortQty":1874009,"avgDailyVol":289723,"daysToCover":"6.47","changePct":"16.91"},{"settlementDate":"2022-08-15","symbol":"MASS","shortQty":1603018,"avgDailyVol":511281,"daysToCover":"3.14","changePct":"3.68"},{"settlementDate":"2022-07-29","symbol":"MASS","shortQty":1546169,"avgDailyVol":218530,"daysToCover":"7.08","changePct":"-2.84"},{"settlementDate":"2022-07-15","symbol":"MASS","shortQty":1591387,"avgDailyVol":325511,"daysToCover":"4.89","changePct":"10.07"},{"settlementDate":"2022-06-30","symbol":"MASS","shortQty":1445851,"avgDailyVol":368759,"daysToCover":"3.92","changePct":"13.74"},{"settlementDate":"2022-06-15","symbol":"MASS","shortQty":1271167,"avgDailyVol":242983,"daysToCover":"5.23","changePct":"-19.69"},{"settlementDate":"2022-05-31","symbol":"MASS","shortQty":1582837,"avgDailyVol":326937,"daysToCover":"4.84","changePct":"5.44"},{"settlementDate":"2022-05-13","symbol":"MASS","shortQty":1501207,"avgDailyVol":421175,"daysToCover":"3.56","changePct":"-16.89"},{"settlementDate":"2022-04-29","symbol":"MASS","shortQty":1806306,"avgDailyVol":220117,"daysToCover":"8.21","changePct":"5.15"},{"settlementDate":"2022-04-14","symbol":"MASS","shortQty":1717766,"avgDailyVol":234130,"daysToCover":"7.34","changePct":"1.56"},{"settlementDate":"2022-03-31","symbol":"MASS","shortQty":1691342,"avgDailyVol":299279,"daysToCover":"5.65","changePct":"14.24"},{"settlementDate":"2022-03-15","symbol":"MASS","shortQty":1480457,"avgDailyVol":358575,"daysToCover":"4.13","changePct":"3.52"},{"settlementDate":"2022-02-28","symbol":"MASS","shortQty":1430065,"avgDailyVol":435016,"daysToCover":"3.29","changePct":"14.41"},{"settlementDate":"2022-02-15","symbol":"MASS","shortQty":1249901,"avgDailyVol":216674,"daysToCover":"5.77","changePct":"-22.70"},{"settlementDate":"2022-01-31","symbol":"MASS","shortQty":1616944,"avgDailyVol":376097,"daysToCover":"4.30","changePct":"6.17"},{"settlementDate":"2022-01-14","symbol":"MASS","shortQty":1523035,"avgDailyVol":282607,"daysToCover":"5.39","changePct":"-2.14"},{"settlementDate":"2021-12-31","symbol":"MASS","shortQty":1556340,"avgDailyVol":255271,"daysToCover":"6.10","changePct":"3.55"},{"settlementDate":"2021-12-15","symbol":"MASS","shortQty":1502942,"avgDailyVol":295667,"daysToCover":"5.08","changePct":"6.41"},{"settlementDate":"2021-11-30","symbol":"MASS","shortQty":1412426,"avgDailyVol":328641,"daysToCover":"4.30","changePct":"8.13"},{"settlementDate":"2021-11-15","symbol":"MASS","shortQty":1306283,"avgDailyVol":422707,"daysToCover":"3.09","changePct":"-40.34"},{"settlementDate":"2021-10-29","symbol":"MASS","shortQty":2189593,"avgDailyVol":86863,"daysToCover":"25.21","changePct":"-2.38"},{"settlementDate":"2021-10-15","symbol":"MASS","shortQty":2242870,"avgDailyVol":151239,"daysToCover":"14.83","changePct":"2.67"},{"settlementDate":"2021-09-30","symbol":"MASS","shortQty":2184503,"avgDailyVol":314109,"daysToCover":"6.95","changePct":"7.43"},{"settlementDate":"2021-09-15","symbol":"MASS","shortQty":2033474,"avgDailyVol":258094,"daysToCover":"7.88","changePct":"3.70"},{"settlementDate":"2021-08-31","symbol":"MASS","shortQty":1960958,"avgDailyVol":271018,"daysToCover":"7.24","changePct":"1.53"},{"settlementDate":"2021-08-13","symbol":"MASS","shortQty":1931352,"avgDailyVol":327770,"daysToCover":"5.89","changePct":"0.57"},{"settlementDate":"2021-07-30","symbol":"MASS","shortQty":1920397,"avgDailyVol":199579,"daysToCover":"9.62","changePct":"-4.73"},{"settlementDate":"2021-07-15","symbol":"MASS","shortQty":2015722,"avgDailyVol":370065,"daysToCover":"5.45","changePct":"9.53"},{"settlementDate":"2021-06-30","symbol":"MASS","shortQty":1840347,"avgDailyVol":523098,"daysToCover":"3.52","changePct":"-31.74"},{"settlementDate":"2021-06-15","symbol":"MASS","shortQty":2696241,"avgDailyVol":282640,"daysToCover":"9.54","changePct":"0.87"},{"settlementDate":"2021-05-28","symbol":"MASS","shortQty":2672507,"avgDailyVol":212306,"daysToCover":"12.59","changePct":"42.26"},{"settlementDate":"2021-05-14","symbol":"MASS","shortQty":1878575,"avgDailyVol":367792,"daysToCover":"5.11","changePct":"31.85"},{"settlementDate":"2021-04-30","symbol":"MASS","shortQty":1424799,"avgDailyVol":133732,"daysToCover":"10.65","changePct":"15.56"},{"settlementDate":"2021-04-15","symbol":"MASS","shortQty":1232938,"avgDailyVol":139937,"daysToCover":"8.81","changePct":"44.34"},{"settlementDate":"2021-03-31","symbol":"MASS","shortQty":854205,"avgDailyVol":310129,"daysToCover":"2.75","changePct":"44.92"},{"settlementDate":"2021-03-15","symbol":"MASS","shortQty":589432,"avgDailyVol":302538,"daysToCover":"1.95","changePct":"270.24"},{"settlementDate":"2021-02-26","symbol":"MASS","shortQty":159203,"avgDailyVol":199143,"daysToCover":"1.00","changePct":"72.74"},{"settlementDate":"2021-01-29","symbol":"MASS","shortQty":307129,"avgDailyVol":183364,"daysToCover":"1.67","changePct":"-11.06"},{"settlementDate":"2021-01-15","symbol":"MASS","shortQty":345340,"avgDailyVol":231201,"daysToCover":"1.49","changePct":"35.81"},{"settlementDate":"2020-12-31","symbol":"MASS","shortQty":254290,"avgDailyVol":762351,"daysToCover":"1.00","changePct":"100.00"}],"updatedAt":"2026-10-13T04:39:06.150Z","source":"xoomar.com","docs":"https://xoomar.com/markets/api","license":"https://xoomar.com/terms","attribution":"Credit XOOMAR with a link to the dataset page on xoomar.com when you republish this data","meta":{"source":"FINRA","sourceAttribution":"Short interest data: FINRA. FINRA is the owner and source of this data.","notice":"10 requests a minute without a key, 30 with a free key. Get a free key at https://xoomar.com/signup?utm_source=api, register your app at https://xoomar.com/developers/register?utm_source=api, and credit the data as \"Data: XOOMAR\" together with the sourceAttribution line."}}