BYMA · CSNA3 · stock
Companhia Siderúrgica Nacional (CSNA3) stock price history
Every BYMA trading session of Companhia Siderúrgica Nacional from Feb 10, 2025 to Sep 28, 2026: 392 daily bars, adjusted for splits and dividends, with minute bars from Sep 16, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.
CSNA3 adjusted close, 2025 to 2026
- ARS 3,168
- All time high, 2026
- ARS 3,308
- 52 week high, ARS 1,296 low
- 392
- Daily sessions since 2025
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2025 to 2026 series and minute bars.
CSNA3 key facts
- Companhia Siderúrgica Nacional (CSNA3) closed at ARS 1,821 on Sep 28, 2026 on BYMA.
- CSNA3's all time high close is ARS 3,168, set on Jan 28, 2026; its all time low close is ARS 1,330 on Aug 19, 2026.
- CSNA3's 52 week range is ARS 1,296 to ARS 3,308.
- CSNA3 returned -18.0% over the year to Sep 28, 2026.
- Since Feb 10, 2025 CSNA3 returned -3%, -1.9% a year compounded.
- CSNA3's deepest drawdown was -58.0% from Jan 28, 2026 to Aug 19, 2026.
- DataCedar holds 392 daily sessions of CSNA3 history from Feb 10, 2025 and minute bars from Sep 16, 2026, adjusted for splits and dividends, served by the API under a key.
CSNA3 price chart, 2025 to 2026
CSNA3 returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +16.1% |
| 3 months | +29.7% |
| 6 months | +5.3% |
| Year to date | -27.2% |
| 1 year | -18.0% |
| 3 years | n/a |
| 5 years | n/a |
| 10 years | n/a |
| Since Feb 10, 2025 | -3.1% |
| Compound annual growth, 1.6 years | -1.9% |
CSNA3 records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- ARS 3,168 on Jan 28, 2026
- All time low close
- ARS 1,330 on Aug 19, 2026
- 52 week high
- ARS 3,308 on Jan 29, 2026
- 52 week low
- ARS 1,296 on Aug 20, 2026
- Deepest drawdown
- -58.0% from Jan 28, 2026 to Aug 19, 2026, not yet recovered
- Best single session
- +16.9% on Aug 24, 2026
- Worst single session
- -14.0% on Mar 12, 2026
- Volatility, 1 year annualised
- 69.4%
- Sessions closing higher, 1 year
- 46%
CSNA3 price history by year
Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2025 starts on Feb 10, 2025; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | ARS 2,520 | ARS 3,308 | ARS 1,296 | ARS 1,821 | -27.2% | 1.4M | 181 |
| 2025 | ARS 1,880 | ARS 2,803 | ARS 1,550 | ARS 2,503 | n/a | 644.3K | 211 |
CSNA3 monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | ARS 1,821 | +10.0% |
| August 2026 | ARS 1,656 | +8.0% |
| July 2026 | ARS 1,534 | +9.6% |
| June 2026 | ARS 1,400 | -28.0% |
| May 2026 | ARS 1,945 | +0.3% |
| April 2026 | ARS 1,940 | +4.9% |
| March 2026 | ARS 1,850 | -24.6% |
| February 2026 | ARS 2,454 | -15.7% |
| January 2026 | ARS 2,913 | +16.4% |
| December 2025 | ARS 2,503 | +4.4% |
| November 2025 | ARS 2,398 | -4.9% |
| October 2025 | ARS 2,523 | +10.0% |
About the CSNA3 data
Daily bars. 392 sessions from Feb 10, 2025 to Sep 28, 2026, one row per BYMA trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.
Minute bars. Stored from Sep 16, 2026 forward, most recent session Sep 28, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.
Time and currency. Session dates are BYMA trading days; minute timestamps are UTC. Prices are in ARS. Volume is shares traded on the session.
Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to Feb 10, 2025, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.
curl "https://api.datacedar.com/v3/stocks/CSNA3/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on BYMA
Common questions
CSNA3 share price history
