GCTS — GCT Semiconductor Holding, Inc.
Price · 2024-08-26 → 2026-08-21
499 daily closes shownAnonymous view is capped at two years of history. A free account extends it to five, and Pro opens the whole archive back to 2021-12-27.
Performance
Technicals
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Measured signals that fired on GCTS
| date | signal | measured base rate |
|---|---|---|
| 2026-08-11 | Fair value gap, bearish structure | -0.45% over 21 days · t = -3.29 · n = 108,591 statistically distinguishable from its control group |
| 2026-08-05 | Fair value gap, bullish structure | -0.67% over 21 days · t = -6.43 · n = 111,973 statistically distinguishable from its control group |
| 2026-05-22 | Volume shock without a price move price | -1.33% over 21 days · t = -4.53 · n = 16,432 statistically distinguishable from its control group |
| 2026-05-18 | Breakout to a 52-week high price | -1.00% over 21 days · t = -8.58 · n = 24,386 statistically distinguishable from its control group |
| 2026-05-15 | Institutional holders jumped in a quarter ownership | -0.52% over 21 days · t = -0.38 · n = 1,553 not distinguishable from its control group |
Excess return against a matched control group, on a point-in-time universe that includes delisted companies. Most families do not survive that. How the measurement works →
Insider transactions (Form 4)
| date | insider | what | shares | price | value |
|---|---|---|---|---|---|
| 2026-06-30 | Chun Kukjin Director | Grant or award | 9.3K | 0.00 | 0 |
| 2026-06-30 | TUDER JEFFREY Director | Grant or award | 9.3K | 0.00 | 0 |
| 2026-06-30 | Shin Hyunsoo Director | Grant or award | 9.3K | 0.00 | 0 |
| 2026-06-30 | Barker Robert Director | Grant or award | 9.3K | 0.00 | 0 |
| 2026-06-30 | Lee Kyeongho Director | Grant or award | 9.3K | 0.00 | 0 |
| 2026-06-30 | Chan Nelson Director | Grant or award | 9.3K | 0.00 | 0 |
| 2026-03-31 | Shin Hyunsoo Director | Grant or award | 24.1K | 0.00 | 0 |
| 2026-03-31 | Chun Kukjin Director | Grant or award | 24.1K | 0.00 | 0 |
| 2026-03-31 | Chan Nelson Director | Grant or award | 24.1K | 0.00 | 0 |
| 2026-03-31 | Barker Robert Director | Grant or award | 24.1K | 0.00 | 0 |
Open-market purchases (code P) are the informative ones. Grants, option exercises and tax withholding are compensation mechanics, not decisions. How to read a Form 4 →
Largest institutional holders
| manager | value | shares |
|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC | 2.0M | 1.7M |
| BlackRock, Inc. | 681.7K | 597.9K |
| GEODE CAPITAL MANAGEMENT, LLC | 540.9K | 474.3K |
| GM Advisory Group, LLC | 495.3K | 434.5K |
| VANGUARD FIDUCIARY TRUST CO | 280.7K | 246.2K |
| STATE STREET CORP | 274.3K | 240.6K |
| Team Hewins, LLC | 143.2K | 125.6K |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 85.5K | 75.0K |
| GOLDMAN SACHS GROUP INC | 77.0K | 67.5K |
| BANK OF AMERICA CORP /DE/ | 71.8K | 63.0K |
13F positions as of 2026-03-31, filed up to 45 days after quarter end. Long-only US equity — shorts and derivatives never appear. What 13F does and does not show →
Short selling
This is off-exchange short volume, not short interest: it is flow, not position, and 40–50% is normal because market makers short to fill your buy. Why that number misleads →
Recent headlines
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