Masimo Corporation (MASI) — Price History
As of 2026-06-12 — refreshed nightly from the Closelook data lake. Diary readings, not advice.
Daily prices
| Date | Open | High | Low | Close | Chg % | Volume |
|---|---|---|---|---|---|---|
| 2026-06-12 | 179.95 | 179.95 | 179.95 | 179.95 | +0.00% | 3,830 |
| 2026-06-11 | 179.95 | 179.95 | 179.95 | 179.95 | +0.00% | 4,500 |
| 2026-06-10 | 179.95 | 179.95 | 179.95 | 179.95 | +0.00% | 4,500 |
| 2026-06-09 | 179.95 | 179.99 | 179.95 | 179.95 | +0.01% | 3,160,101 |
| 2026-06-08 | 179.93 | 179.97 | 179.90 | 179.94 | +3696.20% | 1,267,415 |
| 2026-06-05 | 4.76 | 4.78 | 4.74 | 4.74 | -0.42% | 3,000 |
| 2026-06-04 | 4.76 | 4.76 | 4.76 | 4.76 | -97.34% | 100 |
| 2026-06-03 | 178.79 | 178.92 | 178.63 | 178.78 | +0.03% | 844,300 |
| 2026-06-02 | 178.60 | 178.88 | 178.60 | 178.73 | +0.08% | 1,021,300 |
| 2026-06-01 | 178.41 | 178.72 | 178.30 | 178.59 | +0.08% | 668,500 |
| 2026-05-29 | 178.51 | 178.62 | 178.38 | 178.45 | +0.00% | 824,700 |
| 2026-05-28 | 178.58 | 178.65 | 178.42 | 178.45 | -0.18% | 1,292,200 |
| 2026-05-27 | 178.57 | 178.80 | 178.39 | 178.78 | +0.06% | 790,300 |
| 2026-05-26 | 178.69 | 178.78 | 178.51 | 178.67 | -0.08% | 910,600 |
| 2026-05-22 | 178.68 | 178.84 | 178.36 | 178.81 | +0.10% | 677,300 |
| 2026-05-21 | 178.79 | 178.88 | 178.60 | 178.64 | -0.08% | 1,180,200 |
| 2026-05-20 | 178.89 | 178.89 | 178.64 | 178.79 | -0.01% | 750,300 |
| 2026-05-19 | 178.76 | 178.94 | 178.51 | 178.80 | +0.00% | 733,500 |
| 2026-05-18 | 178.49 | 178.94 | 178.36 | 178.80 | +0.18% | 1,578,400 |
| 2026-05-15 | 178.45 | 178.51 | 178.35 | 178.47 | +0.07% | 662,200 |
| 2026-05-14 | 178.45 | 178.45 | 178.33 | 178.35 | -0.03% | 585,700 |
| 2026-05-13 | 178.65 | 178.67 | 178.28 | 178.41 | -0.08% | 752,800 |
| 2026-05-12 | 178.65 | 178.65 | 178.48 | 178.55 | +0.03% | 823,700 |
| 2026-05-11 | 178.35 | 178.75 | 178.31 | 178.50 | +0.11% | 833,100 |
| 2026-05-08 | 178.58 | 178.58 | 178.26 | 178.31 | -0.11% | 757,800 |
| 2026-05-07 | 178.45 | 178.65 | 178.31 | 178.50 | +0.01% | 1,241,500 |
| 2026-05-06 | 178.53 | 178.74 | 178.25 | 178.49 | -0.05% | 1,019,000 |
| 2026-05-05 | 178.45 | 178.58 | 178.19 | 178.58 | +0.21% | 1,145,300 |
| 2026-05-04 | 178.44 | 178.50 | 178.17 | 178.21 | -0.15% | 888,400 |
| 2026-05-01 | 178.49 | 178.59 | 178.37 | 178.48 | +0.03% | 1,040,800 |
| 2026-04-30 | 178.50 | 178.55 | 178.30 | 178.43 | -0.02% | 921,600 |
| 2026-04-29 | 178.50 | 178.60 | 178.42 | 178.46 | -0.03% | 640,500 |
| 2026-04-28 | 178.68 | 178.75 | 178.40 | 178.51 | -0.08% | 955,300 |
| 2026-04-27 | 178.59 | 178.76 | 178.52 | 178.66 | +0.02% | 523,500 |
| 2026-04-24 | 178.51 | 178.73 | 178.44 | 178.63 | -0.04% | 576,600 |
| 2026-04-23 | 178.41 | 178.76 | 178.33 | 178.71 | +0.10% | 623,900 |
| 2026-04-22 | 178.49 | 178.53 | 178.37 | 178.53 | +0.06% | 606,200 |
| 2026-04-21 | 178.49 | 178.56 | 178.36 | 178.43 | -0.01% | 674,000 |
| 2026-04-20 | 178.48 | 178.50 | 178.25 | 178.45 | +0.03% | 612,600 |
| 2026-04-17 | 178.45 | 178.53 | 178.30 | 178.39 | +0.06% | 456,400 |
| 2026-04-16 | 178.39 | 178.44 | 178.25 | 178.29 | -0.06% | 566,700 |
| 2026-04-15 | 178.32 | 178.50 | 178.32 | 178.39 | +0.00% | 506,900 |
| 2026-04-14 | 178.40 | 178.50 | 178.29 | 178.39 | -0.04% | 505,300 |
| 2026-04-13 | 178.30 | 178.50 | 178.23 | 178.47 | +0.08% | 354,900 |
| 2026-04-10 | 178.47 | 178.49 | 178.22 | 178.32 | -0.01% | 494,500 |
| 2026-04-09 | 178.46 | 178.61 | 178.25 | 178.33 | +0.02% | 627,500 |
| 2026-04-08 | 178.64 | 178.85 | 178.29 | 178.30 | -0.24% | 787,700 |
| 2026-04-07 | 178.25 | 178.73 | 178.25 | 178.73 | +0.13% | 720,400 |
| 2026-04-06 | 178.35 | 178.59 | 178.19 | 178.49 | -0.06% | 1,254,400 |
| 2026-04-02 | 178.01 | 178.65 | 177.80 | 178.59 | +0.33% | 1,009,000 |
| 2026-04-01 | 177.87 | 178.27 | 177.55 | 178.01 | +0.08% | 771,300 |
| 2026-03-31 | 177.85 | 178.21 | 176.94 | 177.87 | +0.31% | 1,328,200 |
| 2026-03-30 | 177.15 | 177.85 | 176.76 | 177.32 | +0.12% | 1,590,500 |
| 2026-03-27 | 176.76 | 177.51 | 176.68 | 177.11 | +0.12% | 1,134,900 |
| 2026-03-26 | 178.09 | 178.16 | 176.80 | 176.89 | -0.67% | 1,630,100 |
| 2026-03-25 | 178.65 | 178.77 | 178.01 | 178.09 | -0.34% | 1,021,400 |
| 2026-03-24 | 177.84 | 179.00 | 177.84 | 178.69 | +0.14% | 1,680,800 |
| 2026-03-23 | 178.75 | 178.75 | 177.58 | 178.44 | +0.11% | 1,744,300 |
| 2026-03-20 | 178.50 | 178.83 | 178.00 | 178.24 | -0.26% | 2,366,600 |
| 2026-03-19 | 178.15 | 178.87 | 177.54 | 178.70 | +1.49% | 3,068,600 |
| 2026-03-18 | 176.00 | 176.42 | 175.81 | 176.07 | +0.06% | 2,676,400 |
| 2026-03-17 | 175.49 | 176.19 | 175.45 | 175.97 | +0.32% | 3,642,100 |
| 2026-03-16 | 175.51 | 175.58 | 175.37 | 175.40 | -0.05% | 1,915,500 |
| 2026-03-13 | 175.57 | 175.57 | 175.46 | 175.49 | -0.01% | 1,814,200 |
| 2026-03-12 | 175.43 | 175.55 | 175.43 | 175.50 | +0.02% | 2,284,000 |
| 2026-03-11 | 175.48 | 175.57 | 175.45 | 175.47 | -0.01% | 1,031,600 |
| 2026-03-10 | 175.59 | 175.73 | 175.41 | 175.49 | +0.02% | 2,607,535 |
| 2026-03-09 | 175.34 | 175.80 | 175.30 | 175.45 | +0.02% | 2,961,392 |
| 2026-03-06 | 175.56 | 175.59 | 175.35 | 175.42 | -0.02% | 2,488,000 |
| 2026-03-05 | 175.40 | 175.61 | 175.35 | 175.46 | +0.05% | 1,579,400 |
| 2026-03-04 | 175.35 | 175.58 | 175.29 | 175.37 | +0.01% | 1,579,400 |
| 2026-03-03 | 175.34 | 175.50 | 175.22 | 175.36 | -0.02% | 1,600,300 |
| 2026-03-02 | 175.22 | 175.65 | 175.13 | 175.40 | +0.03% | 916,800 |
| 2026-02-27 | 175.25 | 175.62 | 175.15 | 175.35 | +0.07% | 922,900 |
| 2026-02-26 | 175.28 | 175.43 | 175.14 | 175.22 | +0.07% | 2,052,700 |
| 2026-02-25 | 175.56 | 175.56 | 175.10 | 175.10 | -0.14% | 1,712,700 |
| 2026-02-24 | 175.34 | 175.90 | 175.21 | 175.35 | +0.06% | 1,950,800 |
| 2026-02-23 | 175.20 | 175.69 | 175.20 | 175.25 | +0.09% | 2,268,000 |
| 2026-02-20 | 175.28 | 175.56 | 175.03 | 175.10 | -0.13% | 4,761,100 |
| 2026-02-19 | 175.59 | 175.70 | 175.00 | 175.33 | -0.16% | 3,876,400 |
| 2026-02-18 | 174.80 | 175.80 | 174.70 | 175.61 | +0.53% | 5,156,700 |
| 2026-02-17 | 175.00 | 175.25 | 174.37 | 174.69 | +34.22% | 14,818,200 |
| 2026-02-13 | 133.33 | 133.82 | 129.21 | 130.15 | -2.11% | 905,991 |
| 2026-02-12 | 135.04 | 135.87 | 130.67 | 132.96 | -1.54% | 704,496 |
| 2026-02-11 | 134.01 | 135.91 | 130.23 | 135.04 | +0.70% | 534,029 |
| 2026-02-10 | 134.76 | 136.51 | 133.83 | 134.10 | -0.52% | 764,735 |
| 2026-02-09 | 138.21 | 139.22 | 134.31 | 134.80 | -3.13% | 621,925 |
| 2026-02-06 | 136.08 | 139.32 | 134.45 | 139.15 | +2.82% | 558,924 |
| 2026-02-05 | 136.81 | 138.04 | 133.73 | 135.33 | -0.94% | 592,309 |
| 2026-02-04 | 139.78 | 142.05 | 135.51 | 136.62 | -1.80% | 711,334 |
| 2026-02-03 | 138.33 | 141.75 | 136.80 | 139.13 | +0.51% | 715,523 |
| 2026-02-02 | 136.46 | 138.52 | 135.74 | 138.42 | +0.79% | 451,782 |
| 2026-01-30 | 136.35 | 138.26 | 133.99 | 137.33 | +0.79% | 629,949 |
| 2026-01-29 | 138.17 | 138.94 | 135.64 | 136.25 | -1.03% | 547,770 |
| 2026-01-28 | 137.80 | 138.76 | 135.91 | 137.67 | -0.18% | 1,136,259 |
| 2026-01-27 | 139.30 | 139.62 | 137.44 | 137.92 | -1.63% | 528,196 |
| 2026-01-26 | 141.90 | 142.48 | 139.64 | 140.20 | -0.89% | 553,408 |
| 2026-01-23 | 143.51 | 144.59 | 141.40 | 141.46 | -1.72% | 702,495 |
| 2026-01-22 | 146.34 | 146.70 | 142.13 | 143.93 | -1.56% | 1,022,070 |
| 2026-01-21 | 144.13 | 148.75 | 142.97 | 146.21 | +2.46% | 1,075,647 |
| 2026-01-20 | 140.14 | 143.53 | 138.84 | 142.70 | +0.46% | 1,033,213 |
| 2026-01-16 | 139.35 | 144.29 | 139.35 | 142.05 | +1.56% | 863,953 |
| 2026-01-15 | 138.07 | 143.95 | 137.73 | 139.87 | +1.05% | 1,292,501 |
| 2026-01-14 | 129.26 | 138.99 | 128.89 | 138.41 | +6.61% | 1,287,584 |
| 2026-01-13 | 131.39 | 133.46 | 129.77 | 129.83 | -1.82% | 508,998 |
| 2026-01-12 | 139.85 | 139.85 | 130.57 | 132.23 | -4.82% | 587,791 |
| 2026-01-09 | 138.41 | 140.34 | 135.20 | 138.92 | +0.73% | 542,876 |
| 2026-01-08 | 136.15 | 138.62 | 135.47 | 137.91 | +0.61% | 608,937 |
| 2026-01-07 | 136.83 | 138.19 | 135.48 | 137.08 | +0.35% | 523,312 |
| 2026-01-06 | 133.62 | 137.38 | 133.62 | 136.60 | +1.94% | 642,991 |
| 2026-01-05 | 127.02 | 134.88 | 125.94 | 134.00 | +5.18% | 1,022,174 |
| 2026-01-02 | 130.59 | 130.59 | 126.57 | 127.40 | -2.05% | 601,418 |
| 2025-12-31 | 130.48 | 131.95 | 129.77 | 130.06 | -0.77% | 600,320 |
| 2025-12-30 | 130.45 | 131.28 | 129.83 | 131.07 | +0.19% | 627,057 |
| 2025-12-29 | 132.60 | 133.79 | 130.53 | 130.82 | -1.46% | 532,988 |
| 2025-12-26 | 132.82 | 133.68 | 131.92 | 132.76 | -0.39% | 304,934 |
| 2025-12-24 | 133.68 | 134.81 | 133.21 | 133.28 | -0.44% | 257,216 |
| 2025-12-23 | 135.96 | 136.50 | 133.59 | 133.87 | -2.28% | 536,701 |
| 2025-12-22 | 134.00 | 137.44 | 133.99 | 137.00 | +2.21% | 805,991 |
| 2025-12-19 | 136.49 | 137.78 | 131.47 | 134.04 | -1.92% | 1,498,291 |
| 2025-12-18 | 135.72 | 137.53 | 135.58 | 136.66 | +0.69% | 785,637 |
| 2025-12-17 | 134.52 | 137.11 | 133.97 | 135.72 | +0.89% | 985,756 |
| 2025-12-16 | 137.19 | 137.88 | 132.90 | 134.52 | -2.10% | 976,793 |
| 2025-12-15 | 137.95 | 138.26 | 136.22 | 137.40 | -0.68% | 695,377 |
| 2025-12-12 | 142.00 | 142.63 | 138.01 | 138.34 | -2.08% | 540,831 |
| 2025-12-11 | 140.74 | 142.04 | 137.00 | 141.28 | +1.08% | 1,178,653 |
| 2025-12-10 | 138.99 | 141.03 | 138.50 | 139.77 | +0.83% | 721,246 |
| 2025-12-09 | 141.03 | 142.70 | 138.53 | 138.62 | -1.58% | 1,068,172 |
| 2025-12-08 | 140.72 | 141.95 | 139.00 | 140.85 | -0.59% | 594,202 |
| 2025-12-05 | 142.82 | 147.82 | 140.83 | 141.68 | -0.41% | 840,733 |
| 2025-12-04 | 138.27 | 142.29 | 135.29 | 142.26 | +3.02% | 1,043,827 |
| 2025-12-03 | 143.20 | 149.84 | 136.99 | 138.09 | -2.88% | 1,219,262 |
| 2025-12-02 | 143.84 | 144.38 | 141.50 | 142.19 | -1.27% | 549,122 |
| 2025-12-01 | 142.24 | 144.45 | 141.88 | 144.02 | +1.12% | 688,770 |
| 2025-11-28 | 142.79 | 143.80 | 142.03 | 142.43 | -1.06% | 260,412 |
| 2025-11-26 | 145.72 | 147.15 | 143.65 | 143.96 | -1.73% | 467,475 |
| 2025-11-25 | 145.77 | 148.68 | 144.46 | 146.49 | +0.60% | 820,077 |
| 2025-11-24 | 149.45 | 151.37 | 145.08 | 145.62 | -2.43% | 769,396 |
| 2025-11-21 | 143.88 | 150.84 | 143.88 | 149.25 | +4.37% | 1,011,419 |
| 2025-11-20 | 141.58 | 145.91 | 141.45 | 143.00 | +1.46% | 589,482 |
| 2025-11-19 | 144.10 | 144.10 | 139.76 | 140.94 | -2.04% | 883,654 |
| 2025-11-18 | 145.57 | 147.97 | 141.50 | 143.88 | -2.14% | 969,342 |
| 2025-11-17 | 152.26 | 152.26 | 146.82 | 147.03 | -2.71% | 704,402 |
| 2025-11-14 | 151.22 | 153.57 | 150.15 | 151.12 | -0.86% | 679,970 |
| 2025-11-13 | 149.12 | 152.58 | 148.34 | 152.43 | +1.76% | 688,237 |
| 2025-11-12 | 145.67 | 152.85 | 145.67 | 149.79 | +2.12% | 520,455 |
| 2025-11-11 | 144.47 | 151.40 | 143.85 | 146.68 | +1.51% | 1,498,949 |
| 2025-11-10 | 143.17 | 146.91 | 142.68 | 144.50 | +0.94% | 692,035 |
| 2025-11-07 | 143.14 | 146.18 | 141.97 | 143.16 | -0.47% | 585,898 |
| 2025-11-06 | 139.49 | 143.97 | 139.00 | 143.84 | +1.20% | 620,660 |
| 2025-11-05 | 150.98 | 157.72 | 138.55 | 142.14 | -4.61% | 2,594,407 |
| 2025-11-04 | 143.52 | 152.34 | 142.95 | 149.01 | +2.79% | 1,440,511 |
| 2025-11-03 | 140.10 | 145.61 | 140.10 | 144.96 | +3.06% | 983,806 |
| 2025-10-31 | 141.67 | 142.02 | 138.68 | 140.65 | -0.63% | 787,033 |
| 2025-10-30 | 143.24 | 146.76 | 141.41 | 141.54 | -0.96% | 359,036 |
| 2025-10-29 | 146.40 | 147.17 | 141.66 | 142.91 | -2.39% | 653,123 |
| 2025-10-28 | 147.59 | 148.59 | 146.01 | 146.41 | -1.07% | 418,135 |
| 2025-10-27 | 147.98 | 148.82 | 147.16 | 148.00 | +0.15% | 420,836 |
| 2025-10-24 | 149.15 | 149.84 | 147.65 | 147.78 | -0.64% | 336,931 |
| 2025-10-23 | 147.36 | 150.08 | 146.56 | 148.73 | +1.02% | 438,694 |
| 2025-10-22 | 148.85 | 150.66 | 146.22 | 147.23 | -0.74% | 657,264 |
| 2025-10-21 | 147.00 | 149.07 | 146.38 | 148.33 | +0.90% | 743,151 |
| 2025-10-20 | 148.10 | 149.05 | 146.66 | 147.01 | +0.16% | 625,335 |
| 2025-10-17 | 145.96 | 147.88 | 145.00 | 146.78 | -0.30% | 588,412 |
| 2025-10-16 | 149.34 | 150.00 | 145.58 | 147.22 | -0.90% | 491,888 |
| 2025-10-15 | 147.48 | 149.30 | 145.88 | 148.56 | +0.75% | 447,078 |
| 2025-10-14 | 146.21 | 151.68 | 145.72 | 147.45 | -0.38% | 500,275 |
| 2025-10-13 | 146.33 | 148.24 | 145.31 | 148.01 | +2.33% | 584,699 |
| 2025-10-10 | 151.13 | 151.16 | 144.10 | 144.64 | -3.91% | 591,876 |
| 2025-10-09 | 155.09 | 155.99 | 149.70 | 150.53 | -2.08% | 624,548 |
| 2025-10-08 | 150.84 | 154.23 | 148.99 | 153.72 | +2.31% | 633,202 |
| 2025-10-07 | 149.35 | 152.43 | 148.49 | 150.25 | +1.43% | 1,130,269 |
| 2025-10-06 | 147.48 | 149.37 | 146.43 | 148.13 | +0.57% | 883,896 |
| 2025-10-03 | 146.17 | 148.98 | 145.77 | 147.29 | +0.85% | 545,261 |
| 2025-10-02 | 141.63 | 146.12 | 140.89 | 146.05 | +2.46% | 622,563 |
| 2025-10-01 | 147.26 | 149.19 | 140.82 | 142.54 | -3.40% | 983,612 |
| 2025-09-30 | 142.73 | 148.42 | 142.67 | 147.55 | +3.23% | 672,450 |
| 2025-09-29 | 142.72 | 143.05 | 140.51 | 142.94 | +1.09% | 664,706 |
| 2025-09-26 | 140.19 | 142.81 | 139.60 | 141.40 | +1.18% | 652,023 |
| 2025-09-25 | 138.11 | 139.80 | 136.64 | 139.75 | -0.48% | 737,978 |
| 2025-09-24 | 140.47 | 143.05 | 139.23 | 140.42 | +0.04% | 715,054 |
| 2025-09-23 | 141.82 | 143.97 | 140.25 | 140.36 | -1.25% | 727,195 |
| 2025-09-22 | 139.99 | 142.31 | 137.84 | 142.13 | +1.21% | 441,218 |
| 2025-09-19 | 143.00 | 143.23 | 140.16 | 140.43 | -1.80% | 1,106,202 |
| 2025-09-18 | 141.97 | 144.02 | 140.57 | 143.00 | +1.25% | 566,785 |
| 2025-09-17 | 143.95 | 144.59 | 140.11 | 141.23 | -1.24% | 997,571 |
| 2025-09-16 | 145.16 | 145.71 | 141.73 | 143.00 | -1.87% | 770,677 |
| 2025-09-15 | 148.07 | 148.95 | 145.15 | 145.72 | -1.17% | 547,411 |
| 2025-09-12 | 145.51 | 148.40 | 143.90 | 147.44 | +0.84% | 699,218 |
| 2025-09-11 | 148.05 | 149.35 | 144.85 | 146.21 | +0.27% | 646,743 |
| 2025-09-10 | 147.63 | 148.46 | 144.63 | 145.82 | -1.55% | 360,599 |
| 2025-09-09 | 149.46 | 149.46 | 147.17 | 148.12 | -0.45% | 357,231 |
| 2025-09-08 | 147.19 | 149.94 | 145.92 | 148.79 | +1.09% | 740,286 |
| 2025-09-05 | 142.53 | 148.08 | 142.06 | 147.19 | +2.92% | 693,983 |
| 2025-09-04 | 137.55 | 143.34 | 136.35 | 143.01 | +4.56% | 709,748 |
| 2025-09-03 | 137.46 | 138.50 | 135.73 | 136.77 | -0.70% | 536,802 |
| 2025-09-02 | 137.00 | 138.20 | 135.34 | 137.74 | -1.41% | 681,907 |
| 2025-08-29 | 141.26 | 141.93 | 138.77 | 139.71 | -0.88% | 459,939 |
| 2025-08-28 | 142.50 | 142.75 | 139.44 | 140.95 | -1.08% | 668,158 |
| 2025-08-27 | 142.33 | 144.08 | 141.17 | 142.49 | -0.53% | 777,553 |
| 2025-08-26 | 145.59 | 145.79 | 142.86 | 143.25 | -1.31% | 575,690 |
| 2025-08-25 | 146.68 | 147.67 | 144.66 | 145.15 | -2.34% | 467,394 |
| 2025-08-22 | 145.12 | 149.59 | 144.28 | 148.63 | +3.04% | 430,001 |
| 2025-08-21 | 144.39 | 146.16 | 143.11 | 144.24 | -0.97% | 721,423 |
| 2025-08-20 | 146.00 | 147.11 | 144.02 | 145.65 | -0.76% | 667,784 |
| 2025-08-19 | 153.74 | 154.70 | 146.49 | 146.76 | -4.66% | 1,022,969 |
| 2025-08-18 | 153.45 | 155.88 | 153.45 | 153.93 | +0.04% | 528,907 |
| 2025-08-15 | 152.92 | 158.29 | 152.92 | 153.87 | +1.32% | 441,178 |
| 2025-08-14 | 151.80 | 152.02 | 147.21 | 151.87 | -2.62% | 970,232 |
| 2025-08-13 | 152.74 | 156.71 | 151.71 | 155.96 | +3.88% | 904,099 |
| 2025-08-12 | 148.99 | 151.54 | 147.47 | 150.13 | +1.87% | 652,763 |
| 2025-08-11 | 144.97 | 149.66 | 144.27 | 147.37 | +1.82% | 871,184 |
| 2025-08-08 | 145.12 | 147.40 | 144.17 | 144.73 | -0.12% | 903,355 |
| 2025-08-07 | 146.23 | 148.08 | 144.28 | 144.90 | +0.17% | 888,293 |
| 2025-08-06 | 162.98 | 162.98 | 135.83 | 144.65 | -11.73% | 3,725,218 |
| 2025-08-05 | 161.16 | 164.32 | 159.23 | 163.88 | +1.62% | 1,142,138 |
| 2025-08-04 | 154.38 | 162.68 | 153.48 | 161.27 | +4.75% | 962,048 |
| 2025-08-01 | 153.81 | 157.16 | 150.42 | 153.95 | +0.10% | 476,024 |
| 2025-07-31 | 155.25 | 158.81 | 152.73 | 153.79 | -1.43% | 633,399 |
| 2025-07-30 | 159.47 | 162.00 | 155.27 | 156.02 | -1.84% | 861,588 |
| 2025-07-29 | 162.16 | 162.65 | 158.86 | 158.94 | -2.00% | 487,978 |
| 2025-07-28 | 164.77 | 164.77 | 161.78 | 162.18 | -1.48% | 549,021 |
| 2025-07-25 | 162.74 | 165.20 | 161.98 | 164.62 | +2.01% | 561,638 |
| 2025-07-24 | 164.81 | 166.96 | 161.19 | 161.38 | -2.19% | 454,270 |
| 2025-07-23 | 159.98 | 165.60 | 158.81 | 165.00 | +4.28% | 631,406 |
| 2025-07-22 | 155.81 | 158.48 | 154.54 | 158.23 | +2.00% | 571,939 |
| 2025-07-21 | 154.66 | 155.75 | 153.36 | 155.13 | +0.43% | 412,278 |
| 2025-07-18 | 160.74 | 160.74 | 154.15 | 154.47 | -2.45% | 509,186 |
| 2025-07-17 | 158.58 | 159.94 | 155.87 | 158.35 | -0.69% | 491,420 |
| 2025-07-16 | 160.54 | 161.09 | 158.05 | 159.45 | -0.37% | 418,382 |
| 2025-07-15 | 161.16 | 161.69 | 159.79 | 160.04 | -1.02% | 461,287 |
| 2025-07-14 | 162.68 | 163.50 | 160.83 | 161.69 | -0.80% | 556,072 |
| 2025-07-11 | 165.75 | 165.75 | 161.03 | 162.99 | -2.00% | 459,103 |
| 2025-07-10 | 166.14 | 168.81 | 165.59 | 166.32 | +0.55% | 356,274 |
| 2025-07-09 | 162.57 | 166.16 | 162.04 | 165.41 | +1.88% | 389,097 |
| 2025-07-08 | 162.64 | 165.50 | 161.18 | 162.35 | -0.06% | 868,197 |
| 2025-07-07 | 166.76 | 167.94 | 161.88 | 162.45 | -3.06% | 832,123 |
| 2025-07-03 | 171.72 | 171.72 | 165.53 | 167.57 | -2.20% | 498,674 |
| 2025-07-02 | 168.67 | 172.54 | 167.57 | 171.34 | +1.38% | 431,836 |
| 2025-07-01 | 168.04 | 171.12 | 163.29 | 169.01 | +0.47% | 539,421 |
| 2025-06-30 | 168.48 | 169.17 | 166.54 | 168.22 | +0.01% | 394,499 |
| 2025-06-27 | 167.20 | 168.76 | 165.09 | 168.21 | +0.90% | 1,215,647 |
| 2025-06-26 | 171.34 | 171.82 | 165.72 | 166.71 | -1.53% | 590,110 |
| 2025-06-25 | 170.42 | 173.99 | 168.28 | 169.30 | -0.57% | 726,886 |
| 2025-06-24 | 168.57 | 171.23 | 166.59 | 170.27 | +1.28% | 863,144 |
| 2025-06-23 | 164.96 | 168.48 | 162.99 | 168.12 | +1.78% | 404,009 |
| 2025-06-20 | 164.54 | 167.66 | 163.37 | 165.18 | +1.48% | 630,763 |
| 2025-06-18 | 159.85 | 163.25 | 158.63 | 162.77 | +2.17% | 362,357 |
| 2025-06-17 | 161.60 | 162.78 | 159.23 | 159.32 | -1.98% | 349,193 |
| 2025-06-16 | 161.78 | 164.97 | 161.45 | 162.54 | +0.83% | 429,055 |
Most recent 250 sessions, newest first.
Seasonal returns
Best month historically: Nov (+11.83%). Worst month: Jul (-13.70%). Based on 5 years of daily data (2022–2026).
FAQ · from the current price data · as of 2026-06-12
Quick answers
What is Masimo Corporation's (MASI) latest close?
179.95 on 2026-06-12, from the Closelook data lake's daily price record.
What is MASI's 52-week high and low?
179.99 high and 4.74 low over the trailing 52 weeks, as of 2026-06-12.
What is Masimo Corporation's strongest and weakest month historically?
Historically, MASI's strongest calendar month has been Nov (average +11.83%) and its weakest Jul (average -13.70%), based on 5 years of daily data (2022–2026).
How many years of seasonality does this cover?
5 years (2022–2026), computed from 927 daily bars in the Closelook data lake.