Horizon Quantum Holdings Ltd. - Class A HQ

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Horizon Quantum Holdings Ltd. - Class A Ordinary Shares · Company · Nasdaq

Paper trade (simulated — no real money)

Fill: USD 11.7000 · FX 1 USD = 1.289800 SGD · about SGD 15.0907 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 9.85 → 11.70 · 18.8%
38.39023.3608.330 3 4 5 6 7,8 9 10 11 Mar 26Apr 26Jul 26

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

Price & SEC Filing History 26 Jul 2025 — 27 Jul 2026 (Last year)

Daily Nasdaq 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.

No data yet
Weekend
Weekend
14.0000 14.0000 11.5700 11.7000 320,800
14.5000 15.4200 13.5700 13.7400 249,100
16.7800 17.2700 14.4600 14.6400 305,200
20.0600 20.1100 16.5000 16.6900 577,100
22.3000 23.9900 19.4400 19.6000 288,900
Weekend
Weekend
19.4700 23.6800 19.0100 22.3100 567,700
20.9300 22.1300 18.9800 20.9300 335,700
20.3300 24.9300 20.3300 21.9100 427,100
21.3800 22.3000 19.8000 21.1900 383,600
22.1100 23.0400 20.9600 21.3800 448,600
Weekend
Weekend
24.0000 25.1400 22.7500 22.9900 486,400
24.0000 25.5000 23.6800 24.0600 457,600
23.0000 25.8800 22.9000 23.7600 409,100
23.5800 24.5100 21.8600 23.5000 488,700
24.4000 25.8900 23.5000 24.2200 455,700
Weekend
Weekend
No trading
26.8300 28.0000 23.6400 23.7800 641,100
28.1000 31.8900 25.9700 27.0300 864,500
23.5000 28.5500 22.4500 27.7600 783,900
23.2100 24.9800 21.3000 23.5000 822,100
Weekend
Weekend
25.4900 27.0000 22.7200 23.3300 596,700
28.6800 28.9000 25.6700 25.9200 714,800
34.0000 34.1100 27.2800 28.4100 877,400
37.7400 41.5300 31.6100 33.3900 1,310,600
36.2000 45.0000 33.0000 38.3900 2,354,600
Weekend
Weekend
No trading
24.1000 39.2500 23.0000 32.0000 8,691,700
18.9800 25.0000 18.8000 23.6100 3,052,900
17.4600 19.7100 17.1700 18.7000 1,570,700
11.6200 18.0500 11.4400 17.8200 6,244,400
Weekend
Weekend
10.5200 11.1700 10.3000 10.9100 134,900
10.0300 10.4700 9.7500 10.3900 197,500
10.5200 11.2300 10.0100 10.0100 150,100
11.1300 11.7300 10.4000 10.7200 146,500
10.7500 12.0000 10.3600 11.2200 196,500
Weekend
Weekend
11.6700 11.9000 9.8000 10.5100 303,200
12.3500 12.8100 11.7800 11.9100 316,600
13.6500 13.8000 12.4100 12.5900 492,600
12.6800 13.9600 12.1700 13.8700 536,500
13.6900 13.6900 12.5000 12.7100 239,100
Weekend
Weekend
13.2300 13.9000 12.8200 13.2000 318,300
12.0500 13.2900 11.5000 13.0800 279,000
12.1400 12.7400 11.3500 11.9400 211,500
14.6500 14.6500 11.7500 11.8400 527,200
No trading
Weekend
Weekend
12.1700 14.2000 11.7000 13.9000 672,400
11.5400 12.3000 11.0800 11.9900 282,000
11.7400 11.7400 10.2600 10.8400 112,600
11.4000 11.6000 10.8000 11.2300 59,100
11.6100 12.1500 11.0100 11.3600 110,000
Weekend
Weekend
12.2600 12.2600 10.8000 11.9100 101,400
12.4400 12.4400 11.6700 12.2000 89,600
11.7600 12.4300 11.2500 12.3100 109,500
12.3300 12.4300 11.5500 11.7600 134,200
10.4900 12.8400 9.9200 12.5700 402,600
Weekend
Weekend
10.3400 10.4400 9.8500 10.2100 153,200
10.8100 10.9400 9.6800 10.0000 367,700
10.2200 10.9500 10.0500 10.4000 319,000
11 · 6-K After-hours · 16:05 ET REPORT OF FOREIGN PRIVATE ISSUER ↗
10.0000 10.3900 9.3400 9.6900 135,400
10 · 6-K After-hours · 16:30 ET REPORT OF FOREIGN PRIVATE ISSUER ↗
11.0700 11.0700 9.9300 10.0500 79,400
Weekend
Weekend
10.5900 10.8600 10.0800 10.7600 120,700
10.1000 10.3400 9.8000 9.9200 86,900
10.0800 10.3300 9.6100 10.0000 76,700
11.1000 11.2500 9.8800 10.0200 145,100
11.6300 12.7000 11.3700 11.6300 135,200
Weekend
Weekend
11.4300 11.5900 10.6700 11.3700 53,200
9 · 424B3 Pre-market · 09:05 ET PROSPECTUS ↗
11.7500 11.7900 10.6600 11.5000 143,600
12.0100 12.6900 11.5100 11.9500 158,000
13.2600 13.2600 11.2000 11.7500 194,000
11.5000 13.4800 11.1500 13.0500 337,200
Weekend
Weekend
12.1700 12.3300 10.6400 11.7800 511,400
8 · F-1 After-hours · 17:16 ET REGISTRATION STATEMENT ↗
13.0000 14.2200 11.0500 11.7500 841,300
7 · 6-K Next filing day · accepted 15 Apr, 18:46 ET REPORT OF FOREIGN PRIVATE ISSUER ↗
11.0200 12.7000 10.8600 12.2300 683,400
6 · 20-F After-hours · 16:50 ET ANNUAL REPORT ↗
9.0000 10.7100 9.0000 10.3800 212,700
9.1200 9.1200 8.5000 8.8800 60,400
Weekend
Weekend
9.4200 9.4300 8.7000 8.8600 29,300
8.9200 9.0800 8.5500 8.7900 31,000
5 · 6-K Pre-market · 07:05 ET REPORT OF FOREIGN PRIVATE ISSUER ↗
8.8000 8.8200 8.3600 8.3700 28,100
9.1000 9.3000 8.3300 8.3300 47,600
9.5000 9.7300 9.0300 9.1000 29,200
Weekend
Weekend
No trading
8.5000 9.4900 8.2900 9.3100 64,300
9.1400 9.1400 8.5000 8.5900 25,200
8.3300 9.2500 8.3300 8.7900 47,100
10.3300 10.3300 8.5000 8.9500 43,100
Weekend
Weekend
10.8900 11.0400 9.5100 9.7100 29,000
11.2100 11.6900 10.7300 10.8900 99,900
4 · 20-F After-hours · 16:07 ET SHELL COMPANY REPORT ↗
10.9800 11.5000 10.8600 11.0000 75,400
11.3000 11.3000 10.5500 11.1000 125,800
9.5400 11.8000 9.5400 11.3300 77,600
Weekend
Weekend
12.0000 13.4400 8.9900 9.8500 74,900
3 · 6-K After-hours · 17:00 ET REPORT OF FOREIGN PRIVATE ISSUER ↗
No trading
No trading
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No trading
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No trading
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No trading
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2 · 424B3 After-hours · 16:56 ET PROSPECTUS SUPPLEMENT ↗
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1 · 424B3 After-hours · 17:03 ET PROSPECTUS ↗
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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.

11 6-K REPORT OF FOREIGN PRIVATE ISSUER (opens SEC filing in a new tab) After-hours · 16:05 ET Summarise
10 6-K REPORT OF FOREIGN PRIVATE ISSUER (opens SEC filing in a new tab) After-hours · 16:30 ET Summarise
9 424B3 PROSPECTUS (opens SEC filing in a new tab) Pre-market · 09:05 ET Summarise
8 F-1 REGISTRATION STATEMENT (opens SEC filing in a new tab) After-hours · 17:16 ET Summarise
7 6-K REPORT OF FOREIGN PRIVATE ISSUER (opens SEC filing in a new tab) Next filing day · accepted 15 Apr, 18:46 ET Summarise
6 20-F ANNUAL REPORT (opens SEC filing in a new tab) After-hours · 16:50 ET Summarise
5 6-K REPORT OF FOREIGN PRIVATE ISSUER (opens SEC filing in a new tab) Pre-market · 07:05 ET Summarise
4 20-F SHELL COMPANY REPORT (opens SEC filing in a new tab) After-hours · 16:07 ET Summarise
3 6-K REPORT OF FOREIGN PRIVATE ISSUER (opens SEC filing in a new tab) After-hours · 17:00 ET Summarise
2 424B3 PROSPECTUS SUPPLEMENT (opens SEC filing in a new tab) After-hours · 16:56 ET Summarise
1 424B3 PROSPECTUS (opens SEC filing in a new tab) After-hours · 17:03 ET Summarise