Companhia Siderurgica Nacional S.A SID

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Companhia Siderurgica Nacional S.A. Common Stock · Company · NYSE

Paper trade (simulated — no real money)

Fill: USD 1.1800 · FX 1 USD = 1.277900 SGD · about SGD 1.5079 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 1.64 → 1.18 · -28.0%
2.1201.4950.870 1 2 3 4 5 6,7 8,9 10 11 12,13 14 15 16,17 18 19,20 21 22 23 24 25 26 27 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
1.0300 1.1800 1.0320 1.1800 7,592,630
1.0900 1.0900 1.0100 1.0400 11,687,100
1.1500 1.1500 1.1000 1.1000 10,139,200
1.1300 1.1600 1.1300 1.1600 8,936,900
1.1200 1.1600 1.1000 1.1300 7,050,700
Weekend
Weekend
1.1500 1.1600 1.1000 1.1100 9,719,900
1.1600 1.1800 1.1400 1.1500 8,524,900
1.2000 1.2200 1.1500 1.2100 4,296,400
1.2600 1.2900 1.2400 1.2400 4,492,500
1.2800 1.2900 1.2600 1.2700 4,411,000
Weekend
Weekend
27 · 6-K After-hours · 21:10 ET 6-K ↗
1.2600 1.3100 1.2500 1.2800 6,286,500
1.2100 1.2900 1.2100 1.2300 11,221,500
1.2000 1.2400 1.1700 1.2300 8,037,500
1.2900 1.3000 1.2200 1.2300 12,124,000
1.2900 1.3500 1.2200 1.2400 27,753,200
Weekend
Weekend
1.1100 1.1600 1.0900 1.1600 7,275,400
1.0700 1.1200 1.0600 1.1200 9,670,200
1.0400 1.1000 1.0300 1.0600 4,529,500
26 · 6-K After market open · 13:00 ET 6-K ↗
1.0400 1.0600 0.9700 1.0200 28,622,000
1.0700 1.1200 1.0600 1.1100 3,866,600
Weekend
Weekend
1.1000 1.1200 1.0900 1.1000 4,810,300
1.1300 1.1400 1.0900 1.1000 4,468,000
1.1700 1.1800 1.1300 1.1400 8,254,900
1.1700 1.2300 1.1700 1.1800 7,128,300
1.1400 1.1700 1.1300 1.1700 4,034,800
Weekend
Weekend
1.1700 1.1800 1.0900 1.1000 10,503,200
1.1700 1.2200 1.1400 1.1800 8,862,400
1.1800 1.2300 1.1600 1.2100 10,730,100
1.1800 1.2100 1.1700 1.2000 8,704,300
25 · 6-K Pre-market · 08:46 ET 6-K ↗
1.2000 1.2300 1.1700 1.1800 12,696,100
24 · 6-K Next filing day · accepted 11 Sep, 18:07 ET 6-K ↗
Weekend
Weekend
1.3200 1.3200 1.2500 1.2700 8,486,600
1.2700 1.3800 1.2500 1.3800 16,090,500
1.2800 1.3300 1.2700 1.3300 12,165,600
1.2800 1.2900 1.2300 1.2400 6,213,900
No trading
Weekend
Weekend
1.2300 1.2700 1.2100 1.2200 4,132,700
1.3600 1.3700 1.2000 1.2600 15,454,500
23 · 6-K Next filing day · accepted 02 Sep, 18:51 ET 6-K ↗
1.1500 1.1900 1.1400 1.1700 5,946,500
1.0300 1.1400 1.0300 1.1300 5,352,800
1.0600 1.0800 1.0400 1.0400 2,009,400
Weekend
Weekend
1.0300 1.0300 0.9900 1.0200 2,311,000
22 · 6-K After-hours · 16:46 ET 6-K ↗
1.0600 1.0900 1.0500 1.0600 1,976,300
1.0100 1.0500 1.0100 1.0300 1,533,100
1.0200 1.0300 0.9900 1.0200 1,461,600
0.9900 1.0500 0.9700 1.0300 2,798,000
Weekend
Weekend
0.8800 0.9800 0.8800 0.9800 2,049,000
0.8600 0.9000 0.8600 0.8900 936,000
0.9200 0.9200 0.8700 0.8800 1,735,300
0.9100 0.9400 0.9000 0.9000 865,600
0.9000 0.9100 0.8700 0.9000 1,567,900
Weekend
Weekend
0.9400 0.9400 0.8600 0.8900 2,287,400
21 · 6-K After market open · 13:53 ET 6-K ↗
0.8800 0.9100 0.8600 0.9000 3,101,700
0.8600 0.8900 0.8600 0.8700 3,421,800
0.9100 0.9200 0.8400 0.8700 7,722,700
20 · 6-K Pre-market · 08:14 ET 6-K ↗ 19 · 6-K Pre-market · 08:01 ET 6-K ↗ 18 · 6-K After market open · 10:11 ET 6-K ↗
0.8900 0.9300 0.8800 0.9000 2,470,300
Weekend
Weekend
0.9500 0.9500 0.9000 0.9300 2,795,000
0.9800 0.9800 0.9400 0.9400 2,042,700
0.9400 0.9900 0.9400 0.9800 3,969,300
0.9300 0.9700 0.9200 0.9400 2,130,700
0.9700 0.9700 0.8800 0.9300 9,563,100
Weekend
Weekend
1.0100 1.0200 0.9600 0.9900 23,607,100
17 · 6-K Next filing day · accepted 30 Jul, 21:36 ET 6-K ↗ 16 · 6-K Next filing day · accepted 30 Jul, 21:32 ET 6-K ↗
1.0200 1.0500 0.9900 1.0100 4,480,300
1.0900 1.1000 1.0300 1.0300 5,469,500
1.1100 1.1300 1.0900 1.1000 3,907,700
1.1000 1.1300 1.0800 1.1200 3,859,100
Weekend
Weekend
1.0600 1.0800 1.0400 1.0800 1,506,700
1.0700 1.1200 1.0500 1.0600 3,687,700
1.0300 1.0900 1.0300 1.0900 2,315,000
1.0100 1.0300 1.0000 1.0000 1,602,300
1.0000 1.0200 1.0000 1.0100 417,800
Weekend
Weekend
0.9900 1.0100 0.9800 0.9900 3,388,500
1.0100 1.0300 1.0000 1.0000 1,850,500
1.0300 1.0400 1.0000 1.0300 1,594,300
1.0500 1.0500 1.0100 1.0300 3,007,100
1.0300 1.0600 1.0100 1.0300 3,926,000
Weekend
Weekend
0.9800 1.0300 0.9800 1.0100 1,628,000
0.9300 0.9600 0.9100 0.9500 1,259,500
0.9200 0.9300 0.9000 0.9200 1,289,900
0.9300 0.9300 0.9100 0.9300 1,548,500
0.9300 0.9600 0.9300 0.9600 1,518,100
Weekend
Weekend
No trading
0.9300 0.9500 0.9000 0.9100 2,734,800
0.8900 0.9300 0.8900 0.9000 2,867,200
0.9000 0.9300 0.8900 0.9200 3,692,200
0.9300 0.9300 0.9100 0.9100 2,902,400
Weekend
Weekend
0.9600 0.9600 0.9400 0.9400 3,290,100
1.0000 1.0100 0.9500 0.9600 6,089,000
1.0200 1.0300 0.9700 0.9800 14,883,400
1.0300 1.0600 1.0200 1.0400 7,841,400
1.0600 1.0700 1.0300 1.0500 6,546,400
Weekend
Weekend
No trading
1.1000 1.1200 1.0200 1.0300 8,566,300
1.1800 1.2000 1.1200 1.1200 7,263,700
1.2200 1.2500 1.2100 1.2100 2,901,700
1.2800 1.3200 1.2100 1.2200 3,029,500
Weekend
Weekend
1.2200 1.2400 1.2000 1.2200 2,412,700
1.1900 1.2100 1.1500 1.2100 6,560,900
1.1500 1.2200 1.1500 1.1800 4,343,200
1.1800 1.2100 1.1300 1.1700 7,536,900
1.1800 1.1900 1.1500 1.1500 4,259,800
Weekend
Weekend
1.2600 1.2600 1.1800 1.1800 6,709,400
1.3000 1.3200 1.2900 1.3000 1,805,400
1.3700 1.3700 1.3000 1.3100 4,140,300
1.3100 1.4700 1.3100 1.4200 7,844,600
1.3100 1.3300 1.2400 1.3100 6,287,600
Weekend
Weekend
15 · 6-K After-hours · 16:07 ET 6-K ↗
1.3500 1.3800 1.3300 1.3500 1,674,900
1.3000 1.3800 1.2900 1.3600 3,637,100
1.3300 1.3400 1.2900 1.3200 3,784,100
1.3500 1.3700 1.3300 1.3400 1,768,300
No trading
Weekend
Weekend
1.2900 1.3500 1.2800 1.3500 3,221,100
1.2300 1.2900 1.2200 1.2800 1,990,700
1.2100 1.2500 1.2000 1.2500 3,137,700
1.2200 1.2300 1.1800 1.1800 3,257,800
1.2800 1.3000 1.2300 1.2500 3,386,000
Weekend
Weekend
1.2700 1.2800 1.2500 1.2600 3,371,200
1.3100 1.3700 1.2700 1.3500 3,503,100
14 · 6-K Pre-market · 06:02 ET 6-K ↗
1.3400 1.3700 1.2800 1.2800 3,800,400
1.3400 1.3700 1.3300 1.3700 3,101,500
1.3900 1.4000 1.3500 1.3700 3,207,900
Weekend
Weekend
1.3900 1.4100 1.3700 1.3800 2,514,900
1.3900 1.3900 1.3400 1.3400 2,964,700
1.3400 1.4000 1.3400 1.4000 4,459,900
1.2800 1.3100 1.2700 1.3000 1,745,800
1.2800 1.2900 1.2400 1.2600 2,440,300
Weekend
Weekend
1.2900 1.3100 1.2900 1.2900 748,300
13 · 6-K After-hours · 16:58 ET 6-K ↗ 12 · 20-F After-hours · 16:25 ET 20-F ↗
1.2900 1.3100 1.2700 1.2900 2,814,900
1.2800 1.2900 1.2500 1.2700 3,177,400
1.2800 1.3000 1.2800 1.3000 2,206,200
1.3100 1.3200 1.2900 1.2900 2,436,200
Weekend
Weekend
1.2900 1.3000 1.2800 1.2900 965,200
1.3400 1.3600 1.2900 1.2900 4,983,200
1.3400 1.3800 1.3400 1.3400 4,823,300
1.3700 1.3800 1.2900 1.3000 4,461,100
1.3700 1.3900 1.3500 1.3800 3,413,600
Weekend
Weekend
1.4000 1.4200 1.3600 1.3600 4,484,300
1.3900 1.4100 1.3400 1.3400 5,185,000
1.3500 1.3700 1.3200 1.3700 4,173,900
1.3700 1.3700 1.3200 1.3500 3,453,500
1.3000 1.3200 1.2600 1.3200 2,749,100
Weekend
Weekend
1.3700 1.3900 1.2900 1.2900 3,176,400
1.3400 1.3700 1.3200 1.3500 4,339,700
1.3400 1.3500 1.3100 1.3300 6,841,500
1.2500 1.2600 1.2200 1.2400 2,824,700
1.2600 1.2800 1.2500 1.2600 2,422,400
Weekend
Weekend
No trading
1.2500 1.2800 1.2400 1.2600 3,349,300
1.2900 1.2900 1.2600 1.2700 4,002,100
1.2100 1.2500 1.2000 1.2400 7,773,200
1.2300 1.2400 1.1700 1.1800 7,136,600
Weekend
Weekend
1.2200 1.2300 1.1900 1.2100 6,445,400
11 · 6-K Next filing day · accepted 26 Mar, 18:36 ET 6-K ↗
1.2700 1.3000 1.2300 1.2300 5,435,800
1.2800 1.3000 1.2600 1.2900 10,245,800
1.2100 1.2600 1.2100 1.2400 7,732,500
1.2100 1.2700 1.2000 1.2500 9,157,300
10 · 6-K Pre-market · 06:02 ET 6-K ↗
Weekend
Weekend
1.1600 1.1800 1.1300 1.1400 9,545,300
1.1200 1.2100 1.1100 1.1900 9,698,700
1.1800 1.2200 1.1600 1.1700 6,351,800
1.2000 1.2700 1.1800 1.2000 8,848,800
1.1500 1.1900 1.1300 1.1700 6,970,100
Weekend
Weekend
1.2100 1.2100 1.1100 1.1100 13,005,000
1.3000 1.3500 1.1900 1.2000 15,950,600
9 · 6-K Pre-market · 06:06 ET 6-K ↗ 8 · 6-K Pre-market · 06:03 ET 6-K ↗
1.4100 1.4500 1.3800 1.3800 5,620,600
1.4200 1.4600 1.3900 1.4100 4,028,500
1.3700 1.4400 1.3400 1.4200 7,071,500
Weekend
Weekend
1.4300 1.4500 1.3900 1.3900 6,061,000
1.5100 1.5300 1.4500 1.4700 5,214,100
1.5400 1.5700 1.5200 1.5500 4,719,900
1.5600 1.5600 1.4800 1.5000 8,295,500
1.6300 1.6800 1.6100 1.6400 6,287,800
Weekend
Weekend
1.7000 1.7000 1.6700 1.6800 4,675,700
1.6900 1.7100 1.6500 1.7000 2,813,300
1.7100 1.7100 1.6700 1.7000 4,016,700
1.6700 1.7200 1.6600 1.6700 2,725,200
1.6800 1.6900 1.6300 1.6700 3,742,300
Weekend
Weekend
1.6300 1.7200 1.6300 1.7000 4,118,800
1.6400 1.6600 1.6300 1.6600 5,613,400
1.6900 1.7400 1.6400 1.6600 5,812,000
1.6800 1.7000 1.6400 1.6800 3,632,600
No trading
Weekend
Weekend
1.6800 1.7000 1.6300 1.6900 6,814,200
1.8500 1.8600 1.7000 1.7000 6,102,600
1.8500 1.8900 1.8200 1.8800 5,913,900
1.8900 1.9100 1.8200 1.8300 5,225,200
1.8500 1.9300 1.8400 1.9000 3,898,800
Weekend
Weekend
1.8700 1.8800 1.8100 1.8300 5,047,300
1.9400 1.9500 1.8800 1.8900 6,902,500
2.0000 2.0100 1.9300 1.9600 4,083,100
2.0200 2.0200 1.9300 2.0100 4,561,800
1.9000 1.9500 1.9000 1.9000 3,337,400
Weekend
Weekend
1.9800 2.0100 1.9000 1.9100 7,605,000
2.1600 2.1600 2.0200 2.0600 5,570,700
2.1500 2.2000 2.1000 2.1200 6,878,100
1.9800 2.0700 1.9800 2.0600 7,577,200
1.9700 1.9900 1.8800 1.9000 5,156,100
Weekend
Weekend
1.8400 1.9600 1.8300 1.9500 6,007,600
1.8100 1.9000 1.8100 1.8200 7,631,500
1.7200 1.7900 1.7100 1.7800 5,082,300
1.7100 1.7200 1.6800 1.7000 3,192,800
No trading
Weekend
Weekend
1.8000 1.8300 1.7100 1.7900 5,428,000
1.8900 1.9400 1.8500 1.9000 7,731,600
7 · 6-K Pre-market · 08:24 ET 6-K ↗ 6 · 6-K Pre-market · 08:19 ET 6-K ↗
1.8500 1.9600 1.8400 1.9500 3,901,000
1.8400 1.8900 1.8200 1.8700 2,025,200
1.8700 1.8800 1.8300 1.8700 2,589,300
5 · 6-K Next filing day · accepted 09 Jan, 17:57 ET 6-K ↗
Weekend
Weekend
1.8500 1.9100 1.8500 1.8600 2,185,700
1.7900 1.8700 1.7800 1.8700 4,171,600
1.7600 1.8800 1.7400 1.8800 7,926,700
1.6800 1.7700 1.6800 1.7500 3,366,400
1.6200 1.7000 1.6200 1.6700 2,152,600
Weekend
Weekend
1.6100 1.6400 1.6000 1.6100 2,220,200
No trading
1.6300 1.6300 1.6000 1.6000 533,900
1.6200 1.6300 1.6100 1.6300 2,130,500
1.6000 1.6300 1.5800 1.5800 2,214,400
Weekend
Weekend
1.6400 1.6500 1.6200 1.6200 1,493,000
No trading
1.6400 1.6600 1.6100 1.6200 984,000
1.6500 1.6600 1.6400 1.6400 2,672,200
1.6700 1.7000 1.6300 1.6400 4,080,100
Weekend
Weekend
1.7300 1.7600 1.6200 1.6300 6,803,200
4 · 6-K Next filing day · accepted 18 Dec, 19:20 ET 6-K ↗
1.7400 1.7800 1.7400 1.7700 3,603,000
3 · 6-K After-hours · 16:31 ET 6-K ↗
1.7200 1.7500 1.7100 1.7300 2,370,100
1.7300 1.7700 1.7300 1.7400 3,107,000
1.7800 1.8000 1.7300 1.7400 3,669,500
Weekend
Weekend
1.8100 1.8300 1.7700 1.8100 1,625,300
1.7800 1.8400 1.7700 1.8100 1,799,000
1.7400 1.8100 1.7400 1.7600 4,235,500
1.6000 1.6800 1.6000 1.6700 2,180,600
1.6600 1.6700 1.6000 1.6100 2,221,300
Weekend
Weekend
1.7400 1.7800 1.6300 1.6400 4,809,500
1.7300 1.7800 1.7200 1.7800 3,876,600
1.6500 1.7200 1.6500 1.7100 2,660,000
1.5800 1.6200 1.5800 1.6200 1,516,700
1.5800 1.6100 1.5700 1.5900 1,848,100
Weekend
Weekend
1.6300 1.6300 1.5700 1.5800 1,218,400
No trading
1.5600 1.6200 1.5600 1.6100 1,855,800
1.5200 1.5500 1.4900 1.5500 1,321,300
1.5100 1.5200 1.4800 1.4900 2,035,800
Weekend
Weekend
1.4800 1.5100 1.4600 1.5000 1,078,800
1.5300 1.5500 1.4800 1.4800 1,704,300
2 · 6-K Next filing day · accepted 19 Nov, 18:17 ET 6-K ↗
1.5200 1.5500 1.5100 1.5200 1,587,800
1.5400 1.5600 1.5200 1.5300 2,348,000
1.6000 1.6100 1.5500 1.5500 1,529,200
Weekend
Weekend
1.6100 1.6500 1.6000 1.6100 1,799,100
1.6600 1.6700 1.6100 1.6300 3,295,500
1.5900 1.6600 1.5800 1.6500 3,819,200
1.5900 1.6100 1.5700 1.5800 2,907,200
1 · 6-K After-hours · 17:07 ET 6-K ↗
1.5800 1.5800 1.5400 1.5500 2,960,800
Weekend
Weekend
1.5500 1.5700 1.5200 1.5700 3,237,700
1.5700 1.6100 1.5600 1.5800 3,483,200
1.6100 1.6700 1.5900 1.6000 3,371,700
1.6900 1.7100 1.6300 1.6400 3,687,200
1.7600 1.7700 1.7100 1.7200 2,662,800
Weekend
Weekend
1.7600 1.7700 1.7300 1.7600 2,203,500
1.7200 1.7600 1.7200 1.7500 1,882,900
1.7500 1.7600 1.7200 1.7500 2,933,000
1.6700 1.7600 1.6700 1.7400 5,847,900
1.6600 1.6900 1.6400 1.6700 2,002,900
Weekend
Weekend
1.6900 1.7000 1.6200 1.6300 2,074,600
1.6400 1.6500 1.6300 1.6400 1,386,000

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.

27 6-K 6-K (opens SEC filing in a new tab) After-hours · 21:10 ET Summarise
26 6-K 6-K (opens SEC filing in a new tab) After market open · 13:00 ET Summarise
25 6-K 6-K (opens SEC filing in a new tab) Pre-market · 08:46 ET Summarise
24 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 11 Sep, 18:07 ET Summarise
23 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 02 Sep, 18:51 ET Summarise
22 6-K 6-K (opens SEC filing in a new tab) After-hours · 16:46 ET Summarise
21 6-K 6-K (opens SEC filing in a new tab) After market open · 13:53 ET Summarise
20 6-K 6-K (opens SEC filing in a new tab) Pre-market · 08:14 ET Summarise
19 6-K 6-K (opens SEC filing in a new tab) Pre-market · 08:01 ET Summarise
18 6-K 6-K (opens SEC filing in a new tab) After market open · 10:11 ET Summarise
17 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 30 Jul, 21:36 ET Summarise
16 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 30 Jul, 21:32 ET Summarise
15 6-K 6-K (opens SEC filing in a new tab) After-hours · 16:07 ET Summarise
14 6-K 6-K (opens SEC filing in a new tab) Pre-market · 06:02 ET Summarise
13 6-K 6-K (opens SEC filing in a new tab) After-hours · 16:58 ET Summarise
12 20-F 20-F (opens SEC filing in a new tab) After-hours · 16:25 ET Summarise
11 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 26 Mar, 18:36 ET Summarise
10 6-K 6-K (opens SEC filing in a new tab) Pre-market · 06:02 ET Summarise
9 6-K 6-K (opens SEC filing in a new tab) Pre-market · 06:06 ET Summarise
8 6-K 6-K (opens SEC filing in a new tab) Pre-market · 06:03 ET Summarise
7 6-K 6-K (opens SEC filing in a new tab) Pre-market · 08:24 ET Summarise
6 6-K 6-K (opens SEC filing in a new tab) Pre-market · 08:19 ET Summarise
5 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 09 Jan, 17:57 ET Summarise
4 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 18 Dec, 19:20 ET Summarise
3 6-K 6-K (opens SEC filing in a new tab) After-hours · 16:31 ET Summarise
2 6-K 6-K (opens SEC filing in a new tab) Next filing day · accepted 19 Nov, 18:17 ET Summarise
1 6-K 6-K (opens SEC filing in a new tab) After-hours · 17:07 ET Summarise