Mixed trend on the daily chart: above its 200-day average, below its 50-day · 50-day above the 200-day · SuperTrend down since Sep 16 · below the Ichimoku cloud · RSI 12 (oversold) · MACD below its signal
| 6.70 | Previous month high | +38.43% |
| 6.70 | 52-week high | +38.43% |
| 5.61 | Previous week high | +15.91% |
| 5.55 | Previous month low | +14.67% |
| 5.16 | R3 (classic) | +6.54% |
| 5.09 | R2 (classic) | +5.23% |
| 5.03 | Previous day high | +3.93% |
| 4.97 | R1 (classic) | +2.62% |
| 4.90 | Pivot | +1.31% |
| 4.84 | Previous day low | +0.00% |
| 4.84 | Previous week low | +0.00% |
| 4.84 | Price now | |
| 4.78 | S1 (classic) | −1.31% |
| 4.71 | S2 (classic) | −2.62% |
| 4.59 | S3 (classic) | −5.23% |
| 2.55 | 52-week low | −47.31% |
None of the 29 investors followed here reported a position in RBCN in their latest filing.
From each investor's quarterly 13F filing with the SEC: positions at the quarter's end, reported up to 45 days later. All investors
No member of Congress has disclosed a RBCN trade since 2025.
From House and Senate STOCK Act reports. Members disclose trades, not holdings, as value ranges up to 45 days later, so amounts are estimates and “last move” is a hint at who still holds it, not a position. All recent congress trades
No insider transactions reported for RBCN.
TimeframesUp on the monthly, down on the hourly and daily, mixed on the weekly.
under a falling 21 EMA
under a falling 21 EMA, 21 under 50
pulling back under the 21 EMA
over a rising 21 EMA, 21 over 50
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 0.0 | 12.7 | -2.9 | 22.9 | 48.6 | 5.5 | -8.6 | 18.1 | -8.6 | -15.4 | +76.0% | ||
| 2025 | 19.4 | 11.2 | -0.5 | -8.3 | 9.5 | -4.1 | 52.9 | 29.3 | 0.7 | 4.1 | -32.4 | -6.5 | +66.7% |
| 2024 | -11.5 | 21.7 | 0.0 | -13.1 | 9.6 | -8.7 | 11.0 | 53.1 | 10.5 | -5.1 | 6.9 | 18.7 | +111.5% |
| 2023 | -9.8 | -1.3 | 8.4 | -21.4 | -10.6 | 22.0 | 0.0 | 4.2 | -5.3 | -62.7 | 13.2 | 30.0 | −55.2% |
| 2022 | -1.3 | 1.8 | 3.0 | -2.5 | 3.9 | -2.2 | 74.5 | -79.5 | -35.0 | -5.1 | -6.4 | -8.4 | −80.6% |
| 2021 | 7.7 | 4.4 | 1.4 | 0.3 | -5.5 | -2.9 | -1.1 | 1.1 | 6.8 | -1.4 | -4.6 | -6.1 | −0.9% |
| 2020 | 10.1 | -7.1 | -9.3 | 4.7 | -5.9 | 7.0 | -1.1 | 3.2 | 2.4 | 0.0 | 3.6 | 2.7 | +8.8% |
| 2019 | 2.8 | 2.1 | -2.7 | -5.0 | 8.2 | 0.0 | 10.7 | 0.8 | 3.3 | -10.6 | -4.9 | 2.2 | +5.3% |
| 2018 | -2.6 | -7.2 | -3.6 | -1.6 | 14.3 | 0.9 | 0.4 | 15.4 | -1.8 | -14.3 | 11.7 | -8.1 | −1.0% |
| 2017 | -10.0 | 9.3 | 40.7 | -9.6 | 32.1 | -6.6 | -11.9 | 0.4 | 0.9 | -7.0 | 9.9 | -5.5 | +33.0% |
| 2016 | -8.8 | -7.7 | -24.0 | -6.8 | 0.0 | 0.0 | 4.4 | -12.7 | 1.6 | -4.8 | -16.7 | 20.0 | −47.4% |
| 2015 | -9.0 | 4.8 | -9.6 | -2.5 | -29.9 | -9.7 | -27.2 | -20.9 | -26.4 | 6.8 | -9.1 | 14.0 | −75.1% |
| 2014 | 10.3 | 17.7 | -12.5 | -10.3 | -16.2 | 3.1 | -13.9 | -17.1 | -31.9 | 4.2 | 16.0 | -11.1 | −54.1% |
| 2013 | 10.0 | -23.2 | 27.9 | 12.3 | 14.3 | -5.9 | 5.6 | 45.0 | -0.8 | -29.0 | 18.4 | -2.3 | +62.8% |
| 2012 | 15.2 | -17.1 | 16.3 | -9.4 | -6.7 | 15.6 | -1.5 | -16.2 | 13.8 | -9.3 | -26.1 | -4.8 | −34.9% |
| 2011 | -14.6 | 26.7 | 21.3 | 3.0 | -19.5 | -26.5 | -12.7 | -12.4 | -15.2 | -4.7 | -8.9 | -1.1 | −55.5% |
| 2010 | -22.3 | -0.5 | 28.7 | 34.7 | -0.1 | 9.6 | 1.5 | -19.0 | -7.4 | 1.7 | -4.9 | -3.9 | +3.8% |
| 2009 | 34.0 | -30.3 | 33.4 | 59.7 | 8.4 | 55.4 | -17.2 | 3.6 | 21.2 | 1.9 | 15.2 | 16.6 | +376.8% |
| 2008 | -0.4 | 24.4 | -1.5 | -23.9 | 3.7 | -11.1 | -36.0 | -6.0 | -40.9 | -26.3 | -14.3 | -6.6 | −82.1% |
| 2007 | 28.4 | +28.4% |
No analyst coverage for this instrument.
Rubicon Technology, Inc. provides monocrystalline sapphire for applications in optical and industrial systems in North America, Asia, and internationally. The company offers optical and industrial sapphire products in various shapes and sizes, including sheets, rods, tubes, core, ingots, and prisms for a range of end markets comprising defense and aerospace, specialty lighting, instrumentation, sensors and detectors, semiconductor process equipment, electronic substrates, medical, and laser applications. It serves defense subcontractors, industrial manufacturers, fabricators, and resellers. The company was incorporated in 2001 and is based in Bensenville, Illinois.