f/overrides/event-backup/ibrax-dividend.csv
Greg Pomerantz bb8e39605e Event-history protection: backup dir, empty-download fallback, docs
Yahoo's 2026 event-feed change (capitalGain events dropped for some
funds; no events at all for terminated tickers) can wipe good event
history on re-download. Defense in depth:

- overrides/event-backup/: last-known-good copy of every dividend/
  capitalGain file (8,192 files, 58 MB); refresh with
  scripts/backup_events.py after each dump update
- data.py event_file(): frozen > data-root (while populated) > backup;
  used by panel reads, verify_official, and the double-listing scanner
- README: capital-gain files are mutual-fund-only in this dump; Yahoo
  has no LT/ST split (tax.py taxes capg at lt_rate; the per-fund split
  would come from fund-company annual tax statements or commercial feeds)
- tests: exact Timestamp .loc keys (pandas 3.x string matching returns a
  Series on large DatetimeIndex)
2026-08-31 21:59:25 -04:00

142 lines
2.7 KiB
Plaintext

Date,Dividends
2017-05-01,0.039000
2019-01-31,0.059000
2023-03-31,0.036000
2023-07-31,0.024000
2024-02-29,0.007000
2008-04-01,0.045000
2008-05-01,0.042000
2013-07-16,0.642000
2025-05-30,0.030000
2025-09-30,0.030000
2012-05-01,0.006000
2018-05-31,0.007000
2025-07-31,0.031000
2021-12-31,0.037000
2023-05-31,0.029000
2023-08-31,0.024000
2026-05-29,0.036000
2008-08-01,0.123000
2009-10-01,0.047000
2021-08-31,0.039000
2022-03-31,0.034000
2026-02-27,0.022000
2008-10-01,0.026000
2018-02-28,0.012000
2019-10-31,0.002000
2024-01-31,0.006000
2007-07-02,0.063000
2008-09-02,0.169000
2021-10-29,0.005000
2022-12-30,0.026000
2025-02-28,0.022000
2011-11-01,0.004000
2019-05-31,0.033000
2008-07-01,0.018000
2008-07-15,0.168000
2010-07-14,0.144000
2022-11-30,0.012000
2008-02-01,0.026000
2011-04-01,0.033000
2019-06-28,0.028000
2022-02-28,0.012000
2014-07-01,0.038000
2019-11-29,0.006000
2019-12-31,0.013000
2023-09-29,0.018000
2025-11-28,0.028000
2026-07-31,0.035000
2007-12-03,0.048000
2011-07-14,0.446000
2017-02-01,0.011000
2007-10-01,0.018000
2008-06-02,0.012000
2026-03-31,0.045000
2009-02-02,0.001000
2020-06-30,0.027000
2024-04-30,0.048000
2011-06-01,0.076000
2018-06-29,0.025000
2022-09-30,0.006000
2024-12-31,0.029000
2026-04-30,0.031000
2011-08-01,0.038000
2018-11-30,0.008000
2020-07-31,0.001000
2025-10-31,0.032000
2021-03-31,0.003000
2022-06-30,0.029000
2025-04-30,0.036000
2023-04-28,0.040000
2012-07-16,0.560000
2019-08-30,0.004000
2021-05-28,0.026000
2009-11-02,0.032000
2019-07-31,0.017000
2022-01-31,0.031000
2024-07-31,0.029000
2024-08-30,0.015000
2011-05-02,0.034000
2022-05-31,0.057000
2023-11-30,0.045000
2021-07-30,0.031000
2018-03-29,0.022000
2018-04-30,0.024000
2020-10-30,0.013000
2020-01-31,0.008000
2024-09-30,0.020000
2025-08-29,0.030000
2024-06-28,0.028000
2007-08-01,0.066000
2015-03-02,0.048000
2017-06-01,0.018000
2009-12-01,0.024000
2023-12-29,0.008000
2007-11-01,0.019000
2009-09-01,0.046000
2010-05-03,0.046000
2020-04-30,0.016000
2021-11-30,0.010000
2025-12-31,0.029000
2011-03-01,0.008000
2014-09-02,0.020000
2018-07-31,0.021000
2024-11-29,0.011000
2010-06-01,0.063000
2012-06-01,0.057000
2024-03-28,0.035000
2020-08-31,0.023000
2022-04-29,0.042000
2024-10-31,0.018000
2014-06-02,0.050000
2018-09-28,0.014000
2018-12-31,0.013000
2010-07-01,0.042000
2020-11-30,0.005000
2023-06-30,0.036000
2025-03-31,0.043000
2025-06-30,0.033000
2007-09-04,0.030000
2008-01-02,0.048000
2008-11-03,0.037000
2022-07-29,0.051000
2025-01-31,0.016000
2018-10-31,0.005000
2020-09-30,0.022000
2021-09-30,0.018000
2020-03-31,0.023000
2023-10-31,0.012000
2011-12-01,0.005000
2021-06-30,0.038000
2026-06-30,0.039000
2008-03-03,0.044000
2015-02-02,0.048000
2021-04-30,0.025000
2019-09-30,0.008000
2022-08-31,0.070000
2024-05-31,0.049000
2026-01-30,0.028000
2007-06-01,0.096000
2011-07-01,0.032000
2019-04-30,0.007000