Rubicon Technology, Inc. (RBCN)
OTCMKTS · Delayed Price · Currency is USD
4.239
+0.011 (0.26%)
Sep 12, 2025, 3:42 PM EDT
Rubicon Technology Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Sep 12, 2025 | 4.13 | 4.24 | 4.13 | 4.24 | 4.24 | 0.26% | 1,276 |
| Sep 11, 2025 | 4.25 | 4.26 | 4.23 | 4.23 | 4.23 | -0.52% | 666 |
| Sep 10, 2025 | 4.28 | 4.28 | 4.25 | 4.25 | 4.25 | -0.23% | 6,797 |
| Sep 9, 2025 | 4.26 | 4.26 | 4.26 | 4.26 | 4.26 | - | 45 |
| Sep 8, 2025 | 4.00 | 4.30 | 4.00 | 4.26 | 4.26 | -2.07% | 1,753 |
| Sep 5, 2025 | 4.08 | 4.35 | 4.08 | 4.35 | 4.35 | 4.82% | 327 |
| Sep 4, 2025 | 4.15 | 4.15 | 4.15 | 4.15 | 4.15 | - | 52 |
| Sep 3, 2025 | 4.15 | 4.40 | 4.10 | 4.15 | 4.15 | - | 23,109 |
| Sep 2, 2025 | 4.15 | 4.15 | 4.15 | 4.15 | 4.15 | - | 6 |
| Aug 29, 2025 | 3.80 | 4.15 | 3.80 | 4.15 | 4.15 | -3.06% | 9,918 |
| Aug 28, 2025 | 4.25 | 4.28 | 4.25 | 4.28 | 4.28 | -0.21% | 420 |
| Aug 27, 2025 | 4.33 | 4.33 | 4.25 | 4.29 | 4.29 | -0.92% | 3,858 |
| Aug 26, 2025 | 4.31 | 4.35 | 4.31 | 4.33 | 4.33 | -0.23% | 2,419 |
| Aug 25, 2025 | 4.31 | 4.37 | 4.31 | 4.34 | 4.34 | - | 9,732 |
| Aug 22, 2025 | 4.36 | 4.36 | 4.31 | 4.34 | 4.34 | -0.69% | 25,620 |
| Aug 21, 2025 | 3.75 | 4.54 | 3.75 | 4.37 | 4.37 | 34.05% | 116,921 |
| Aug 20, 2025 | 3.26 | 3.26 | 3.26 | 3.26 | 3.26 | - | 1 |
| Aug 19, 2025 | 3.26 | 3.26 | 3.26 | 3.26 | 3.26 | -5.51% | 537 |
| Aug 18, 2025 | 3.45 | 3.45 | 3.45 | 3.45 | 3.45 | -2.27% | 1,507 |
| Aug 15, 2025 | 3.25 | 3.53 | 3.25 | 3.53 | 3.53 | 13.87% | 1,847 |
| Aug 14, 2025 | 3.10 | 3.10 | 3.10 | 3.10 | 3.10 | -4.62% | 1,025 |
| Aug 13, 2025 | 3.10 | 3.25 | 3.10 | 3.25 | 3.25 | 4.84% | 221 |
| Aug 12, 2025 | 3.20 | 3.20 | 3.10 | 3.10 | 3.10 | -3.13% | 1,987 |
| Aug 11, 2025 | 3.16 | 3.20 | 3.16 | 3.20 | 3.20 | 3.23% | 200 |
| Aug 8, 2025 | 3.53 | 3.53 | 3.10 | 3.10 | 3.10 | -8.82% | 11,763 |
| Aug 7, 2025 | 3.53 | 3.53 | 3.40 | 3.40 | 3.40 | -2.86% | 510 |
| Aug 6, 2025 | 3.50 | 3.50 | 3.32 | 3.50 | 3.50 | -2.78% | 719 |
| Aug 5, 2025 | 3.40 | 5.51 | 3.40 | 3.60 | 3.60 | 9.09% | 89,787 |
| Aug 4, 2025 | 3.40 | 3.40 | 3.30 | 3.30 | 3.30 | 1.54% | 758 |
| Aug 1, 2025 | 3.28 | 3.49 | 3.21 | 3.25 | 3.25 | 1.31% | 3,655 |
| Jul 31, 2025 | 3.21 | 3.21 | 3.21 | 3.21 | 3.21 | - | 52 |
| Jul 30, 2025 | 3.25 | 3.46 | 3.21 | 3.21 | 3.21 | 1.84% | 746 |
| Jul 29, 2025 | 3.19 | 3.19 | 3.15 | 3.15 | 3.15 | -0.32% | 1,890 |
| Jul 28, 2025 | 3.46 | 3.46 | 3.15 | 3.16 | 3.16 | -8.41% | 692 |
| Jul 25, 2025 | 3.25 | 3.48 | 3.25 | 3.45 | 3.45 | 5.83% | 1,267 |
| Jul 24, 2025 | 3.26 | 3.31 | 3.26 | 3.26 | 3.26 | - | 1,595 |
| Jul 23, 2025 | 3.00 | 4.47 | 3.00 | 3.26 | 3.26 | 16.43% | 6,688 |
| Jul 22, 2025 | 2.55 | 2.83 | 2.55 | 2.80 | 2.80 | 11.55% | 4,769 |
| Jul 21, 2025 | 2.46 | 2.62 | 2.35 | 2.51 | 2.51 | 5.46% | 5,782 |
| Jul 18, 2025 | 2.23 | 2.38 | 2.20 | 2.38 | 2.38 | 16.67% | 2,293 |
| Jul 17, 2025 | 2.03 | 2.04 | 2.03 | 2.04 | 2.04 | - | 340 |
| Jul 16, 2025 | 2.04 | 2.04 | 2.04 | 2.04 | 2.04 | -3.32% | 200 |
| Jul 15, 2025 | 2.11 | 2.11 | 2.11 | 2.11 | 2.11 | - | 6 |
| Jul 14, 2025 | 2.11 | 2.11 | 2.11 | 2.11 | 2.11 | - | 110 |
| Jul 11, 2025 | 2.11 | 2.11 | 2.11 | 2.11 | 2.11 | -8.26% | 542 |
| Jul 10, 2025 | 2.30 | 2.30 | 2.30 | 2.30 | 2.30 | - | 408 |
| Jul 9, 2025 | 2.30 | 2.30 | 2.30 | 2.30 | 2.30 | 0.44% | 105 |
| Jul 8, 2025 | 2.26 | 2.29 | 2.25 | 2.29 | 2.29 | -0.26% | 710 |
| Jul 7, 2025 | 2.35 | 2.35 | 2.30 | 2.30 | 2.30 | -2.30% | 655 |
| Jul 3, 2025 | 2.16 | 2.35 | 2.16 | 2.35 | 2.35 | 8.80% | 509 |