GCT Semiconductor Holding, Inc GCTS

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GCT Semiconductor Holding, Inc. Common Stock · Company · NYSE · Technology / Semiconductors

Paper trade (simulated — no real money)

Fill: USD 1.2900 · FX 1 USD = 1.277900 SGD · about SGD 1.6485 per unit

Sign in to place simulated trades. USD fills are converted into the SGD portfolio at the displayed rate.

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 1.43 → 1.29 · -9.8%
3.7302.3600.990 1,2 3,4 5 6 7 8,9 10 11,12 13,14,15 16,17 18,19 20 21 Oct 25Jan 26Apr 26Jul 26Oct 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 23 Oct 2025 — 24 Oct 2026 (Last year)

Daily NYSE prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

Weekend
1.4000 1.4081 1.2900 1.2900 1,169,405
1.4600 1.4850 1.3650 1.3900 1,789,300
1.5700 1.5840 1.4900 1.5200 1,478,600
1.4500 1.5700 1.3700 1.5300 2,406,200
1.6600 1.6600 1.5000 1.5100 1,953,000
Weekend
Weekend
1.7700 1.7780 1.5800 1.5900 2,533,300
1.6900 1.7750 1.6400 1.7600 2,585,700
1.8500 1.8700 1.7550 1.7700 1,811,900
1.8900 1.9300 1.8600 1.9000 1,306,500
1.9800 1.9800 1.8300 1.9300 2,226,100
Weekend
Weekend
2.1200 2.1900 1.9600 2.0200 1,807,600
2.0500 2.1300 2.0210 2.1000 1,215,200
2.0800 2.0900 2.0300 2.0600 1,375,100
2.1300 2.2100 2.1000 2.1200 1,417,800
2.2200 2.2400 2.0800 2.0900 1,268,800
Weekend
Weekend
2.2200 2.2700 2.2000 2.2500 1,529,200
2.1300 2.1400 2.0200 2.1400 1,293,100
2.0900 2.1600 2.0700 2.1200 1,543,700
2.2100 2.2200 2.0900 2.1100 1,332,000
2.1800 2.2500 2.1700 2.1800 1,428,800
Weekend
Weekend
2.2500 2.2700 2.1650 2.2300 931,100
2.1100 2.2400 2.1000 2.2400 1,186,500
2.2000 2.2350 2.1400 2.1600 1,232,200
2.1600 2.2600 2.1400 2.2000 1,813,800
2.1100 2.2400 2.0800 2.1900 2,314,100
Weekend
Weekend
21 · 8-K After-hours · 16:07 ET CURRENT REPORT ↗
2.1000 2.1000 2.0200 2.0700 1,978,400
2.0200 2.1200 1.9500 2.0600 2,178,400
1.9400 2.0500 1.9000 1.9100 1,695,600
20 · 8-K After-hours · 16:24 ET CURRENT REPORT ↗
1.8900 1.9300 1.8600 1.9200 980,700
1.8600 1.9050 1.8000 1.8700 1,308,400
Weekend
Weekend
1.9300 2.0500 1.8800 1.9100 2,257,200
1.7800 1.8900 1.7750 1.8600 1,034,400
1.8100 1.8800 1.8100 1.8200 670,800
1.8300 1.9000 1.8100 1.8100 1,690,500
No trading
Weekend
Weekend
1.7700 1.8200 1.7200 1.7700 1,301,700
1.7400 1.7500 1.6800 1.7500 1,448,900
1.7050 1.7550 1.6700 1.7300 1,644,300
1.7700 1.7700 1.7200 1.7400 1,344,700
1.8550 1.8910 1.7900 1.8000 1,847,300
Weekend
Weekend
1.9000 1.9200 1.8500 1.8600 1,415,700
1.9400 1.9800 1.9000 1.9100 1,434,700
1.8700 2.0000 1.8300 1.8800 3,490,400
1.8900 1.8900 1.8310 1.8400 1,250,800
1.9900 1.9900 1.8350 1.8600 2,213,600
Weekend
Weekend
2.0100 2.0550 1.9100 2.0400 2,191,600
1.9800 2.0150 1.9500 1.9900 1,209,500
2.0000 2.0500 1.9100 1.9800 1,548,300
1.9900 2.0440 1.9200 1.9300 1,900,300
2.0000 2.1100 1.9800 2.0900 1,720,700
Weekend
Weekend
2.1500 2.1800 1.9500 1.9700 4,166,100
2.1700 2.2450 2.0400 2.1400 1,918,900
2.2000 2.2600 2.1000 2.1700 2,874,000
2.0700 2.1680 2.0000 2.0400 4,163,100
19 · 10-Q After-hours · 16:46 ET 10-Q ↗ 18 · 8-K After-hours · 17:05 ET CURRENT REPORT ↗
2.6100 2.6900 2.4300 2.4500 4,485,700
Weekend
Weekend
2.4700 2.6050 2.3500 2.5500 3,067,400
2.2100 2.5000 2.1700 2.3700 3,232,900
2.2800 2.4200 2.2300 2.2700 2,539,800
2.1100 2.2990 2.0600 2.2300 2,843,000
17 · DEF 14A After-hours · 16:11 ET DEF 14A ↗ 16 · DEFA14A After-hours · 16:33 ET SEC Form DEFA14A ↗
1.8700 2.0600 1.8500 2.0200 3,222,600
Weekend
Weekend
1.9800 2.0150 1.8600 1.8600 1,726,700
1.8100 1.9100 1.7630 1.8900 2,173,100
1.8700 1.8860 1.7300 1.7400 2,436,300
1.9500 1.9500 1.8100 1.8800 1,589,300
1.9600 2.0050 1.8800 1.9800 1,424,500
Weekend
Weekend
2.0600 2.0700 1.9250 1.9500 1,693,300
2.0800 2.1400 2.0000 2.0500 1,747,800
2.1400 2.2360 2.0900 2.1000 1,189,100
2.1300 2.2290 2.1200 2.1700 1,400,700
2.1100 2.1500 2.0650 2.1000 1,245,500
Weekend
Weekend
2.0400 2.1300 1.9700 2.1000 1,655,800
2.2300 2.2400 2.0750 2.1200 1,908,100
2.3900 2.4800 2.1550 2.3100 2,640,000
2.4200 2.4300 2.3400 2.3900 910,200
2.4300 2.4300 2.3150 2.3500 1,465,400
Weekend
Weekend
2.4500 2.4700 2.3550 2.4600 1,294,600
2.5200 2.5600 2.4600 2.4600 1,319,400
2.3700 2.5300 2.3700 2.5000 2,292,100
2.4700 2.5400 2.3400 2.4600 2,518,800
2.6800 2.7750 2.5000 2.5000 1,847,300
Weekend
Weekend
No trading
2.7600 2.9800 2.5700 2.6200 2,927,600
2.8500 2.9060 2.7350 2.7600 2,379,500
2.5600 3.1000 2.5400 2.9700 5,579,500
2.4200 2.6550 2.2900 2.5600 2,587,100
Weekend
Weekend
2.3400 2.4600 2.3000 2.3500 2,081,900
2.6800 2.7800 2.4600 2.4700 2,371,800
2.8600 2.8850 2.5400 2.6000 2,406,500
2.7300 2.9200 2.7200 2.8700 3,565,300
3.0100 3.0750 2.8000 2.9000 4,188,600
Weekend
Weekend
No trading
15 · 8-K/A After-hours · 17:21 ET CURRENT REPORT ↗ 14 · 8-K After-hours · 16:31 ET CURRENT REPORT ↗ 13 · 424B5 After-hours · 16:30 ET SEC Form 424B5 ↗
2.6500 3.3200 2.6350 3.1800 9,818,400
2.6500 2.7900 2.6000 2.6700 2,764,100
2.5600 2.6400 2.4650 2.6400 3,266,400
2.6100 2.7400 2.5400 2.6100 3,969,600
Weekend
Weekend
2.6000 2.6700 2.5100 2.5200 3,807,500
2.4700 2.6600 2.4400 2.5700 4,016,700
2.5000 2.7160 2.4000 2.4700 4,535,800
2.5600 2.8400 2.4600 2.5800 6,654,100
2.7900 2.8200 2.5150 2.5300 5,249,200
Weekend
Weekend
3.1000 3.1490 2.6600 2.7200 8,145,200
3.0900 3.4400 3.0200 3.1800 5,372,600
3.5000 3.5800 3.2400 3.2400 6,613,800
3.3800 3.7300 3.2700 3.4600 6,627,400
3.4500 3.7000 3.3900 3.4000 5,968,100
Weekend
Weekend
3.6300 3.6300 3.3200 3.3700 7,914,500
3.1700 3.9300 3.1310 3.7300 12,137,100
3.2900 3.3100 2.9400 3.2400 12,970,600
3.5900 3.8400 3.2700 3.3000 11,896,300
No trading
Weekend
Weekend
3.3600 3.4300 2.9400 3.3900 15,919,600
2.7200 3.5700 2.6200 3.4500 21,975,000
3.2250 3.2400 2.6400 2.7400 18,612,200
2.2100 2.8980 2.1600 2.8000 16,072,000
2.0600 2.6800 2.0000 2.5800 60,309,800
Weekend
Weekend
1.3500 1.8700 1.3400 1.8300 10,798,600
1.4600 1.5000 1.3200 1.4400 4,855,600
1.5700 1.6000 1.4400 1.4500 6,335,600
12 · 10-Q After-hours · 16:22 ET 10-Q ↗ 11 · 8-K After-hours · 16:15 ET CURRENT REPORT ↗
1.6000 1.7500 1.5200 1.6300 7,557,800
1.8200 1.8300 1.6000 1.6000 14,249,300
Weekend
Weekend
1.5400 1.9500 1.5200 1.7000 12,337,100
1.5500 1.5800 1.4800 1.5000 3,480,000
1.5600 1.6000 1.4750 1.5200 3,312,200
1.5100 1.5500 1.4200 1.5200 2,318,800
1.7100 1.7290 1.4900 1.4900 5,109,000
Weekend
Weekend
1.4200 1.6300 1.3950 1.5900 4,342,400
1.3100 1.4300 1.3000 1.4000 2,089,200
1.3100 1.3200 1.2700 1.3200 1,309,200
1.3000 1.3100 1.2500 1.2900 885,800
1.3700 1.3750 1.2800 1.2900 1,510,700
Weekend
Weekend
1.3400 1.3900 1.3100 1.3500 1,329,900
1.3400 1.4000 1.3200 1.3300 1,641,000
1.2900 1.3350 1.2900 1.3200 784,200
1.3300 1.3570 1.2800 1.2900 697,400
1.3100 1.3450 1.2700 1.3200 1,117,200
Weekend
Weekend
1.3100 1.3200 1.2600 1.3000 1,268,600
1.3300 1.3300 1.2500 1.3000 1,329,400
1.3500 1.3700 1.2900 1.3100 1,297,600
1.3700 1.3800 1.3100 1.3400 1,092,800
1.2900 1.3600 1.2900 1.3300 756,000
Weekend
Weekend
1.2900 1.3030 1.2600 1.2900 751,500
1.3000 1.3400 1.2900 1.2900 748,900
1.4000 1.4000 1.2900 1.2900 1,406,800
1.3300 1.3600 1.2550 1.2800 959,900
1.2100 1.4000 1.2100 1.3600 2,604,800
Weekend
Weekend
No trading
1.0700 1.2100 1.0700 1.2000 766,100
1.1400 1.1900 1.1300 1.1300 518,100
1.0600 1.1500 1.0600 1.1400 815,400
10 · 424B5 After-hours · 18:14 ET SEC Form 424B5 ↗
1.1000 1.1100 1.0600 1.0600 1,178,400
Weekend
Weekend
1.1500 1.1600 1.1100 1.1200 582,300
1.1100 1.1900 1.1000 1.1500 2,538,600
9 · 10-K After-hours · 16:27 ET 10-K ↗ 8 · 8-K After-hours · 16:15 ET CURRENT REPORT ↗
1.3100 1.4600 1.2600 1.3000 4,549,100
1.3000 1.3200 1.2700 1.2900 1,410,800
1.3000 1.3000 1.2500 1.2800 771,100
Weekend
Weekend
1.2700 1.3100 1.2200 1.2900 974,600
1.2700 1.2900 1.1900 1.2400 1,171,800
1.2000 1.3000 1.1870 1.2800 1,629,100
1.2600 1.2600 1.1500 1.1800 735,000
1.1200 1.2300 1.1200 1.1800 1,260,400
Weekend
Weekend
1.1400 1.1600 1.1050 1.1200 619,700
1.1100 1.2000 1.1100 1.1300 713,200
1.1300 1.1500 1.0950 1.1500 566,100
1.0700 1.1300 1.0690 1.1300 673,700
1.0500 1.1000 1.0400 1.0700 1,123,700
Weekend
Weekend
1.1100 1.1300 1.0600 1.0800 1,557,600
1.0600 1.1300 1.0600 1.0800 1,155,400
1.0900 1.1000 1.0600 1.0700 1,333,600
1.0900 1.1500 1.0750 1.0800 1,469,600
7 · 424B5 After-hours · 16:01 ET SEC Form 424B5 ↗
1.0800 1.2050 1.0600 1.2000 1,725,700
Weekend
Weekend
1.1400 1.1700 1.0900 1.1000 1,987,000
1.2400 1.2650 1.1400 1.1400 3,197,500
1.3900 1.4800 1.2200 1.2200 5,641,900
6 · 8-K Pre-market · 07:59 ET CURRENT REPORT ↗
1.3500 1.4200 1.3100 1.3200 2,675,900
1.3100 1.3170 1.2500 1.2900 2,046,600
Weekend
Weekend
1.2600 1.2900 1.2400 1.2700 1,549,000
1.2000 1.2600 1.1700 1.2500 1,008,700
1.2200 1.2600 1.1900 1.2200 1,153,400
1.2600 1.2800 1.1900 1.2200 1,475,700
No trading
Weekend
Weekend
1.2300 1.3500 1.2110 1.2600 2,836,900
1.2700 1.3100 1.2400 1.2400 1,489,200
1.2600 1.2900 1.1900 1.2300 1,698,300
1.2300 1.2900 1.2300 1.2400 1,206,400
1.2500 1.2750 1.2000 1.2600 1,575,800
Weekend
Weekend
1.2500 1.2750 1.1900 1.2400 2,229,200
1.2200 1.2900 1.1800 1.2600 2,149,300
1.2700 1.3100 1.1500 1.2500 4,711,100
1.1800 1.2800 1.1600 1.2000 3,157,300
1.1600 1.2400 1.0000 1.1800 4,632,700
Weekend
Weekend
1.2500 1.2800 1.1300 1.1600 8,269,100
1.1600 1.8400 1.1100 1.2600 174,683,700
5 · 8-K Pre-market · 07:13 ET CURRENT REPORT ↗
1.0100 1.0100 0.9600 0.9910 379,700
0.9800 1.0000 0.9550 0.9900 309,000
1.0000 1.0200 0.9630 0.9900 260,400
Weekend
Weekend
1.0100 1.0150 0.9730 0.9950 415,500
1.1200 1.1200 0.9920 1.0000 792,700
1.1200 1.1400 1.0200 1.0600 389,000
1.0300 1.1500 1.0150 1.1300 822,400
No trading
Weekend
Weekend
1.0800 1.0800 1.0300 1.0500 360,800
1.1700 1.1700 1.0400 1.0800 510,100
1.1400 1.1500 1.0800 1.1100 404,700
1.2400 1.2400 1.1100 1.1600 406,400
1.2200 1.2200 1.1200 1.1900 253,600
Weekend
Weekend
1.1200 1.1900 1.1100 1.1800 280,800
1.1900 1.1900 1.0800 1.1000 428,400
1.2000 1.2000 1.1400 1.1800 357,900
1.2300 1.2300 1.1600 1.2000 342,400
1.2100 1.2470 1.1600 1.2100 212,300
Weekend
Weekend
1.2700 1.2700 1.2000 1.2200 193,500
No trading
1.1600 1.2000 1.1200 1.2000 284,900
1.2000 1.2200 1.1500 1.1600 261,400
1.2000 1.2500 1.1900 1.2100 332,200
Weekend
Weekend
1.3000 1.3000 1.1800 1.2200 364,800
No trading
1.2900 1.2900 1.2000 1.2400 80,400
1.2200 1.2800 1.1500 1.2000 391,300
1.2900 1.3400 1.2300 1.2400 342,600
Weekend
Weekend
1.4100 1.4100 1.2400 1.2900 540,500
1.3700 1.4200 1.3300 1.4100 280,000
1.4200 1.4200 1.2900 1.3600 201,200
1.3700 1.4150 1.3700 1.4000 72,800
4 · 424B5 After-hours · 16:47 ET 424B5 ↗ 3 · 8-K After-hours · 16:36 ET CURRENT REPORT ↗
1.4700 1.4700 1.3900 1.4300 102,700
Weekend
Weekend
1.4700 1.4700 1.4200 1.4500 169,600
1.4300 1.4900 1.4000 1.4900 159,100
1.4400 1.4500 1.4100 1.4200 78,900
1.4600 1.4600 1.4050 1.4300 73,300
1.4700 1.4700 1.3700 1.4200 88,300
Weekend
Weekend
1.4600 1.4780 1.3800 1.4200 150,000
1.3800 1.4600 1.3800 1.4500 96,100
1.3800 1.4300 1.3700 1.4200 107,400
1.3600 1.3700 1.3500 1.3700 63,800
1.3300 1.3590 1.3300 1.3500 76,100
Weekend
Weekend
1.3800 1.3800 1.3100 1.3200 94,100
No trading
1.3200 1.3600 1.3200 1.3200 89,400
1.4200 1.4200 1.2800 1.3100 166,100
1.3100 1.3500 1.3100 1.3500 98,500
Weekend
Weekend
1.3200 1.3200 1.2800 1.3100 242,300
1.3900 1.3900 1.2800 1.3400 204,800
1.3700 1.3790 1.3500 1.3600 87,300
1.3000 1.3600 1.3000 1.3600 54,200
1.3500 1.3500 1.3000 1.3400 198,300
Weekend
Weekend
1.2500 1.3500 1.2400 1.3400 145,200
1.4100 1.4100 1.2550 1.2700 548,800
2 · 10-Q After-hours · 16:34 ET 10-Q ↗ 1 · 8-K After-hours · 16:37 ET CURRENT REPORT ↗
1.4000 1.4800 1.3610 1.4500 333,100
1.3800 1.4000 1.3200 1.3600 135,500
1.4100 1.4190 1.3200 1.3500 283,100
Weekend
Weekend
1.3700 1.4100 1.3200 1.4100 132,800
1.3300 1.3900 1.3100 1.3900 223,700
1.3400 1.3900 1.3300 1.3300 165,500
1.4200 1.4200 1.3200 1.3400 343,900
1.4100 1.4500 1.4000 1.4300 263,400
Weekend
Weekend
1.4900 1.5300 1.3800 1.4500 751,200
1.4400 1.7500 1.4250 1.6000 2,830,300
1.4400 1.4490 1.4100 1.4400 150,500
1.4500 1.4500 1.4200 1.4300 76,300
1.4700 1.4700 1.3900 1.4500 233,300
Weekend
Weekend
1.4400 1.5000 1.4350 1.4700 239,200
1.4500 1.4500 1.4200 1.4300 84,200

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

21 8-K CURRENT REPORT (opens SEC filing in a new tab) After-hours · 16:07 ET Summarise
20 8-K CURRENT REPORT (opens SEC filing in a new tab) After-hours · 16:24 ET Summarise
19 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:46 ET Summarise
18 8-K CURRENT REPORT (opens SEC filing in a new tab) After-hours · 17:05 ET Summarise
17 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:11 ET Summarise
16 DEFA14A SEC Form DEFA14A (opens SEC filing in a new tab) After-hours · 16:33 ET Summarise
15 8-K/A CURRENT REPORT (opens SEC filing in a new tab) After-hours · 17:21 ET Summarise
14 8-K CURRENT REPORT (opens SEC filing in a new tab) After-hours · 16:31 ET Summarise
13 424B5 SEC Form 424B5 (opens SEC filing in a new tab) After-hours · 16:30 ET Summarise
12 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:22 ET Summarise
11 8-K CURRENT REPORT (opens SEC filing in a new tab) After-hours · 16:15 ET Summarise
10 424B5 SEC Form 424B5 (opens SEC filing in a new tab) After-hours · 18:14 ET Summarise
9 10-K 10-K (opens SEC filing in a new tab) After-hours · 16:27 ET Summarise
8 8-K CURRENT REPORT (opens SEC filing in a new tab) After-hours · 16:15 ET Summarise
7 424B5 SEC Form 424B5 (opens SEC filing in a new tab) After-hours · 16:01 ET Summarise
6 8-K CURRENT REPORT (opens SEC filing in a new tab) Pre-market · 07:59 ET Summarise
5 8-K CURRENT REPORT (opens SEC filing in a new tab) Pre-market · 07:13 ET Summarise
4 424B5 424B5 (opens SEC filing in a new tab) After-hours · 16:47 ET Summarise
3 8-K CURRENT REPORT (opens SEC filing in a new tab) After-hours · 16:36 ET Summarise
2 10-Q 10-Q (opens SEC filing in a new tab) After-hours · 16:34 ET Summarise
1 8-K CURRENT REPORT (opens SEC filing in a new tab) After-hours · 16:37 ET Summarise