TSX · ONEX · stock

Onex Corporation (ONEX) stock price history

Every TSX trading session of Onex Corporation from Jan 12, 1995 to Sep 28, 2026: 7,969 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.

Get ONEX data, free keyYear by year table

ONEX adjusted close, 1995 to 2026

ONEXOnex Corporation
CA$105.30-14.1% over one year
200020052010201520202025
CA$125.22
All time high, 2025
CA$130.91
52 week high, CA$94.97 low
7,969
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.

ONEX key facts

  • Onex Corporation (ONEX) closed at CA$105.30 on Sep 28, 2026 on TSX.
  • ONEX's all time high close is CA$125.22, set on Sep 15, 2025; its all time low close is CA$2.44 on Feb 16, 1995.
  • ONEX's 52 week range is CA$94.97 to CA$130.91.
  • ONEX returned -14.1% over the year to Sep 28, 2026 and +19.2% over five years.
  • Over ten years ONEX returned +32%, +2.8% a year compounded.
  • ONEX's deepest drawdown was -68.1% from May 22, 2007 to Mar 9, 2009.
  • DataCedar holds 7,969 daily sessions of ONEX history from Jan 12, 1995 and minute bars from Sep 17, 2026, adjusted for splits and dividends, served by the API under a key.

ONEX price chart, 1995 to 2026

ONEX adjusted close, Jan 12, 1995 to Sep 28, 2026CA$2.47CA$9.06CA$33.27CA$122.211995200020052010201520202025
Adjusted daily close, log scale. 260 sampled points across the full history; the API serves every session.

ONEX returns

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

PeriodReturn
1 month-6.9%
3 months+0.8%
6 months+6.8%
Year to date-6.5%
1 year-14.1%
3 years+34.3%
5 years+19.2%
10 years+32.0%
Since Jan 12, 1995+3,886%
Compound annual growth, 31.7 years+12.3%

ONEX records

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

All time high close
CA$125.22 on Sep 15, 2025
All time low close
CA$2.44 on Feb 16, 1995
52 week high
CA$130.91 on Oct 30, 2025
52 week low
CA$94.97 on Mar 20, 2026
Deepest drawdown
-68.1% from May 22, 2007 to Mar 9, 2009, recovered Nov 1, 2012
Best single session
+15.2% on Feb 2, 2000
Worst single session
-19.5% on Mar 18, 2020
Volatility, 1 year annualised
25.9%
Sessions closing higher, 1 year
51%
Growth of 1 since 1995
39.9×
Best calendar year
1999, +142%
Worst calendar year
2008, -48%

ONEX 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 Jan 12, 1995; 2026 runs to Sep 28, 2026.

YearOpenHighLowCloseReturnVolumeSessions
2026CA$112.62CA$119.34CA$94.97CA$105.30-6.4%21.4M186
2025CA$111.19CA$130.91CA$86.18CA$112.55+1.0%33.8M251
2024CA$91.46CA$118.05CA$84.66CA$111.47+21.9%26.9M252
2023CA$65.25CA$93.22CA$57.89CA$91.48+42.5%38.5M250
2022CA$97.53CA$99.35CA$60.19CA$64.17-33.9%38.9M250
2021CA$71.19CA$98.65CA$65.83CA$97.07+36.6%33.1M251
2020CA$79.60CA$87.04CA$35.81CA$71.08-10.5%62.2M252
2019CA$71.08CA$81.38CA$69.52CA$79.44+11.0%37M251
2018CA$88.21CA$95.86CA$68.58CA$71.54-19.1%34.8M251
2017CA$87.57CA$101.60CA$82.70CA$88.39+1.2%30M250
2016CA$80.30CA$92.24CA$70.93CA$87.35+8.1%32.8M251
2015CA$64.13CA$83.72CA$61.12CA$80.82+26.1%34.4M251
2014CA$54.36CA$65.72CA$52.58CA$64.07+18.0%34M251
2013CA$39.91CA$55.40CA$39.25CA$54.32+37.3%35.4M251
2012CA$31.30CA$40.40CA$31.05CA$39.55+26.6%30.9M251
2011CA$28.44CA$35.93CA$26.35CA$31.24+10.1%45.3M250
2010CA$21.99CA$28.86CA$21.94CA$28.37+28.6%44.2M251
2009CA$16.93CA$26.57CA$11.97CA$22.05+30.5%66.9M251
2008CA$32.37CA$32.61CA$13.07CA$16.90-47.8%69.5M252
2007CA$26.33CA$38.36CA$25.17CA$32.39+23.8%93.6M252
2006CA$17.26CA$27.54CA$16.64CA$26.16+50.6%61.5M251
2005CA$17.89CA$19.74CA$16.61CA$17.37-3.7%50.3M251
2004CA$13.37CA$18.62CA$13.37CA$18.03+35.4%103.9M253
2003CA$14.40CA$15.08CA$11.36CA$13.32-7.5%132.1M252
2002CA$19.96CA$21.42CA$13.86CA$14.40-28.3%108.1M252
2001CA$19.41CA$23.19CA$14.26CA$20.09+3.1%135.1M251
2000CA$22.15CA$26.37CA$15.99CA$19.50-15.8%143.5M251
1999CA$9.55CA$23.72CA$8.80CA$23.15+142.4%100.5M252
1998CA$6.17CA$9.66CA$5.00CA$9.55+54.3%107.6M252
1997CA$4.15CA$8.22CA$4.15CA$6.19+49.2%120.9M252
1996CA$3.02CA$4.30CA$2.75CA$4.15+34.0%72.6M253
1995CA$2.67CA$3.41CA$2.44CA$3.10n/a52.7M244

ONEX monthly closes, last 12 months

MonthMonth end closeChange
September 2026CA$105.30-6.7%
August 2026CA$112.89+5.2%
July 2026CA$107.34+1.3%
June 2026CA$105.96-3.7%
May 2026CA$109.98-3.8%
April 2026CA$114.34+12.8%
March 2026CA$101.33+0.1%
February 2026CA$101.24-12.6%
January 2026CA$115.80+2.9%
December 2025CA$112.55+1.5%
November 2025CA$110.90-8.8%
October 2025CA$121.56-1.1%

About the ONEX data

Daily bars. 7,969 sessions from Jan 12, 1995 to Sep 28, 2026, one row per TSX 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 TSX trading days; minute timestamps are UTC. Prices are in CAD. 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 Jan 12, 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/ONEX/bars?timeframe=1Day&adjustment=all&limit=50000" \
  -H "X-API-Key: YOUR_KEY"

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ONEX share price history

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