WTMhistorical intraday data
ListedWhite Mountains Insurance Group Ltd.NYSE
White Mountains Insurance Group Ltd. (WTM) is a common stock listed on NYSE. WTM has 5,828 trading days on file, from September 10, 2003 to November 9, 2026, with 4,437,178 trades. There are 260,784 1-minute bars on file.
On file
- First day
- 2003-09-10
- Last day
- 2026-11-09
- Trading days
- 5,828
- Trades
- 4,437,178
- 1-minute bars
- 260,784
- Bars, about
- 4.1 MB
- Trades, about
- 61 MB
- Quotes, about
- 307 MB
Sizes are approximate: this ticker’s share of the Parquet files.
Trading history
Symbols get reused, so the history under WTM is not always one company.
Sample rows
| Time (ET) | Open | High | Low | Close | Volume | Trades |
|---|---|---|---|---|---|---|
| 09:31 | 2,264.13 | 2,264.13 | 2,250.32 | 2,257.1 | 267.034914 | 39 |
| 09:32 | 2,268.12 | 2,268.12 | 2,247.63 | 2,265.21 | 250 | 40 |
| 09:38 | 2,230.73 | 2,250.655 | 2,230.73 | 2,250.655 | 62.000185 | 19 |
| 09:45 | 2,238.69 | 2,245.09 | 2,238.69 | 2,245.09 | 111 | 22 |
| 09:46 | 2,246.96 | 2,246.96 | 2,240.825 | 2,240.825 | 111 | 18 |
WTM by year
| Year | Trading days on file | Trades |
|---|---|---|
| 2003 | 79 | 3,988 |
| 2004 | 252 | 11,051 |
| 2005 | 252 | 17,273 |
| 2006 | 251 | 23,877 |
| 2007 | 251 | 33,244 |
| 2008 | 253 | 46,144 |
| 2009 | 252 | 69,830 |
| 2010 | 252 | 36,600 |
| 2011 | 252 | 32,151 |
| 2012 | 250 | 14,492 |
| 2013 | 252 | 18,000 |
| 2014 | 252 | 74,551 |
| 2015 | 252 | 85,167 |
| 2016 | 252 | 100,269 |
| 2017 | 251 | 127,392 |
| 2018 | 251 | 148,677 |
| 2019 | 252 | 147,103 |
| 2020 | 253 | 243,847 |
| 2021 | 252 | 360,755 |
| 2022 | 251 | 393,502 |
| 2023 | 250 | 389,020 |
| 2024 | 252 | 455,447 |
| 2025 | 250 | 820,937 |
| 2026 | 214 | 783,861 |