Euronext Paris · ALTD · stock

Tonner Drones S.A. (ALTD) stock price history

Every Euronext Paris trading session of Tonner Drones S.A. from Sep 15, 2014 to Sep 28, 2026: 3,081 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.

ALTD adjusted close, 2014 to 2026

ALTDTonner Drones S.A.
€0.0246-9.6% over one year
201620182020202220242026
€133,000,000
All time high, 2019
€0.0428
52 week high, €0.0225 low
3,081
Daily sessions since 2014

Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 2014 to 2026 series and minute bars.

ALTD key facts

  • Tonner Drones S.A. (ALTD) closed at €0.0246 on Sep 28, 2026 on Euronext Paris.
  • ALTD's all time high close is €133,000,000, set on Dec 13, 2019; its all time low close is €0.0082 on Sep 20, 2024.
  • ALTD's 52 week range is €0.0225 to €0.0428.
  • ALTD returned -9.6% over the year to Sep 28, 2026 and -100.0% over five years.
  • Over ten years ALTD returned -100%, -84.9% a year compounded.
  • ALTD's deepest drawdown was -100.0% from Dec 13, 2019 to Sep 20, 2024.
  • DataCedar holds 3,081 daily sessions of ALTD history from Sep 15, 2014 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.

ALTD price chart, 2014 to 2026

ALTD adjusted close, Sep 15, 2014 to Sep 28, 2026€0.0092€22.10€53,081€127,500,0002014201620182020202220242026
Adjusted daily close, log scale. 260 sampled points across the full history; the API serves every session.

ALTD returns

Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.

PeriodReturn
1 month-14.6%
3 months-2.8%
6 months-21.7%
Year to date-8.6%
1 year-9.6%
3 years-98.4%
5 years-100.0%
10 years-100.0%
Since Sep 15, 2014-100.0%
Compound annual growth, 12.0 years-79.7%

ALTD records

Measured on the stored closes; every figure is reproducible from the API series.

All time high close
€133,000,000 on Dec 13, 2019
All time low close
€0.0082 on Sep 20, 2024
52 week high
€0.0428 on May 27, 2026
52 week low
€0.0225 on Jun 26, 2026
Deepest drawdown
-100.0% from Dec 13, 2019 to Sep 20, 2024, not yet recovered
Best single session
+64,648% on Dec 4, 2019
Worst single session
-95.8% on Jul 14, 2020
Volatility, 1 year annualised
54.2%
Sessions closing higher, 1 year
50%
Best calendar year
2019, +28,289%
Worst calendar year
2022, -100%

ALTD 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. 2014 starts on Sep 15, 2014; 2026 runs to Sep 28, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026€0.0282€0.0428€0.0225€0.0246-12.1%1.1B189
2025€0.0116€0.0698€0.0112€0.0280+137.3%4.1B255
2024€0.3470€1.40€0.0078€0.0118-96.4%1.5B256
2023€48.00€51.00€0.3020€0.3270-99.3%3.7M255
2022€200,000€210,000€45.00€47.00-100.0%15.1K257
2021€2,850,000€3,320,000€180,000€200,000-92.4%7258
2020€132,250,000€157,500,000€2,050,000€2,630,000-98.0%8257
2019€470,941€145,000,000€186,727€130,500,000+28,289%31256
2018€1,537,308€2,793,401€437,945€459,693-70.1%16255
2017€3,899,513€4,874,391€1,424,822€1,537,308-59.8%3255
2016€8,811,399€11,998,500€2,924,635€3,824,522-56.4%4257
2015€18,747,656€20,809,898€8,436,445€8,773,903-53.0%2255
2014€5,399,325€37,795,276€2,812,149€18,672,666n/a776

ALTD monthly closes, last 12 months

MonthMonth end closeChange
September 2026€0.0246-14.6%
August 2026€0.0288+7.9%
July 2026€0.0267+3.9%
June 2026€0.0257-34.3%
May 2026€0.0391+18.8%
April 2026€0.0329+10.8%
March 2026€0.0297-13.7%
February 2026€0.0344+17.8%
January 2026€0.0292+4.3%
December 2025€0.0280-3.4%
November 2025€0.0290+3.6%
October 2025€0.0280+1.8%

About the ALTD data

Daily bars. 3,081 sessions from Sep 15, 2014 to Sep 28, 2026, one row per Euronext Paris 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 Euronext Paris trading days; minute timestamps are UTC. Prices are in EUR. 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 Sep 15, 2014, 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/ALTD/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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ALTD share price history

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