SIX · ALSN · stock
ALSO Holding AG (ALSN) stock price history
Every SIX trading session of ALSO Holding AG from Apr 3, 1995 to Sep 28, 2026: 8,026 daily bars, adjusted for splits and dividends, with minute bars from Sep 17, 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.
ALSN adjusted close, 1995 to 2026
- CHF 282.33
- All time high, 2025
- CHF 234.55
- 52 week high, CHF 128.76 low
- 8,026
- Daily sessions since 1995
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 1995 to 2026 series and minute bars.
ALSN key facts
- ALSO Holding AG (ALSN) closed at CHF 189.40 on Sep 28, 2026 on SIX.
- ALSN's all time high close is CHF 282.33, set on Jul 22, 2025; its all time low close is CHF 10.38 on Mar 7, 1996.
- ALSN's 52 week range is CHF 128.76 to CHF 234.55.
- ALSN returned -17.9% over the year to Sep 28, 2026 and -21.8% over five years.
- Over ten years ALSN returned +170%, +10.4% a year compounded.
- ALSN's deepest drawdown was -91.6% from Apr 5, 1995 to Mar 7, 1996.
- DataCedar holds 8,026 daily sessions of ALSN history from Apr 3, 1995 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.
ALSN price chart, 1995 to 2026
ALSN returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -4.0% |
| 3 months | -0.4% |
| 6 months | +37.2% |
| Year to date | -8.7% |
| 1 year | -17.9% |
| 3 years | -9.3% |
| 5 years | -21.8% |
| 10 years | +169.9% |
| Since Apr 3, 1995 | +53.0% |
| Compound annual growth, 31.5 years | +1.4% |
ALSN records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- CHF 282.33 on Jul 22, 2025
- All time low close
- CHF 10.38 on Mar 7, 1996
- 52 week high
- CHF 234.55 on Oct 6, 2025
- 52 week low
- CHF 128.76 on Feb 17, 2026
- Deepest drawdown
- -91.6% from Apr 5, 1995 to Mar 7, 1996, recovered Jul 1, 2019
- Best single session
- +32.5% on Sep 30, 2008
- Worst single session
- -90.0% on Aug 3, 1995
- Volatility, 1 year annualised
- 47.7%
- Sessions closing higher, 1 year
- 45%
- Best calendar year
- 1999, +106%
- Worst calendar year
- 2008, -53%
ALSN 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. 1995 starts on Apr 3, 1995; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | CHF 208.01 | CHF 210.00 | CHF 128.76 | CHF 189.40 | -8.7% | 4.8M | 186 |
| 2025 | CHF 213.40 | CHF 288.12 | CHF 189.57 | CHF 207.52 | -2.1% | 3.1M | 249 |
| 2024 | CHF 231.92 | CHF 266.86 | CHF 202.99 | CHF 211.98 | -9.0% | 2.4M | 250 |
| 2023 | CHF 159.73 | CHF 238.88 | CHF 153.45 | CHF 232.85 | +49.1% | 2.7M | 251 |
| 2022 | CHF 272.19 | CHF 279.45 | CHF 127.23 | CHF 156.22 | -42.6% | 3.5M | 254 |
| 2021 | CHF 228.59 | CHF 275.82 | CHF 211.59 | CHF 272.19 | +20.2% | 2.7M | 254 |
| 2020 | CHF 144.60 | CHF 235.30 | CHF 107.79 | CHF 226.36 | +58.1% | 6M | 252 |
| 2019 | CHF 94.16 | CHF 146.70 | CHF 90.74 | CHF 143.20 | +50.2% | 3.4M | 249 |
| 2018 | CHF 113.59 | CHF 121.97 | CHF 88.17 | CHF 95.36 | -15.0% | 3.9M | 249 |
| 2017 | CHF 74.21 | CHF 117.28 | CHF 74.17 | CHF 112.25 | +51.8% | 5M | 251 |
| 2016 | CHF 54.29 | CHF 76.10 | CHF 49.26 | CHF 73.96 | +34.5% | 4.3M | 254 |
| 2015 | CHF 40.95 | CHF 56.73 | CHF 38.08 | CHF 54.97 | +36.4% | 536.4K | 251 |
| 2014 | CHF 37.39 | CHF 44.68 | CHF 36.03 | CHF 40.29 | +7.8% | 748.9K | 249 |
| 2013 | CHF 36.75 | CHF 38.56 | CHF 31.01 | CHF 37.39 | +11.1% | 424.5K | 249 |
| 2012 | CHF 29.63 | CHF 33.85 | CHF 26.23 | CHF 33.66 | +10.9% | 211.4K | 250 |
| 2011 | CHF 38.21 | CHF 41.92 | CHF 26.81 | CHF 30.35 | -20.7% | 157.4K | 254 |
| 2010 | CHF 28.77 | CHF 40.36 | CHF 27.54 | CHF 38.28 | +36.3% | 147.6K | 254 |
| 2009 | CHF 19.53 | CHF 30.83 | CHF 17.13 | CHF 28.09 | +28.1% | 211.4K | 253 |
| 2008 | CHF 42.67 | CHF 42.88 | CHF 19.87 | CHF 21.92 | -53.1% | 163.7K | 253 |
| 2007 | CHF 43.24 | CHF 49.65 | CHF 40.68 | CHF 46.74 | +8.1% | 346.5K | 251 |
| 2006 | CHF 26.45 | CHF 43.58 | CHF 26.37 | CHF 43.24 | +63.5% | 488.6K | 258 |
| 2005 | CHF 20.95 | CHF 29.23 | CHF 20.82 | CHF 26.45 | +26.2% | 1.3M | 260 |
| 2004 | CHF 19.49 | CHF 24.05 | CHF 18.66 | CHF 20.95 | +7.5% | 677.8K | 262 |
| 2003 | CHF 18.68 | CHF 21.10 | CHF 11.83 | CHF 19.49 | +4.4% | 775.6K | 261 |
| 2002 | CHF 22.11 | CHF 27.08 | CHF 17.93 | CHF 18.68 | -15.5% | 378.7K | 261 |
| 2001 | CHF 45.68 | CHF 47.20 | CHF 15.12 | CHF 22.11 | -51.6% | 458.4K | 261 |
| 2000 | CHF 75.48 | CHF 83.87 | CHF 43.85 | CHF 45.68 | -39.5% | 2M | 260 |
| 1999 | CHF 36.56 | CHF 75.48 | CHF 34.22 | CHF 75.48 | +106.4% | 1.4M | 261 |
| 1998 | CHF 19.00 | CHF 37.16 | CHF 18.11 | CHF 36.56 | +92.5% | 1.9M | 261 |
| 1997 | CHF 10.82 | CHF 20.18 | CHF 10.53 | CHF 19.00 | +75.5% | 625.4K | 261 |
| 1996 | CHF 12.69 | CHF 12.98 | CHF 10.38 | CHF 10.82 | -14.7% | 193.3K | 262 |
| 1995 | CHF 123.83 | CHF 123.83 | CHF 10.67 | CHF 12.69 | n/a | 329.3K | 195 |
ALSN monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | CHF 189.40 | -2.0% |
| August 2026 | CHF 193.20 | +0.2% |
| July 2026 | CHF 192.80 | +0.2% |
| June 2026 | CHF 192.40 | +3.8% |
| May 2026 | CHF 185.40 | +15.6% |
| April 2026 | CHF 160.40 | +14.6% |
| March 2026 | CHF 140.00 | -11.5% |
| February 2026 | CHF 158.10 | -17.6% |
| January 2026 | CHF 191.89 | -7.5% |
| December 2025 | CHF 207.52 | +0.7% |
| November 2025 | CHF 206.08 | -7.6% |
| October 2025 | CHF 222.97 | -4.1% |
About the ALSN data
Daily bars. 8,026 sessions from Apr 3, 1995 to Sep 28, 2026, one row per SIX 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 17, 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 SIX trading days; minute timestamps are UTC. Prices are in CHF. 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 Apr 3, 1995, 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/ALSN/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on SIX
Common questions
ALSN share price history
