f/overrides/event-backup/nxg-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

131 lines
2.5 KiB
Plaintext

Date,Dividends
2025-01-16,0.528376
2025-02-18,0.528376
2023-09-15,0.528376
2024-06-17,0.528376
2018-08-16,0.536204
2021-11-12,0.208415
2022-07-15,0.208415
2016-12-15,1.604697
2021-10-15,0.208415
2025-04-15,0.528376
2023-01-17,0.208415
2023-10-13,0.528376
2013-02-26,1.604697
2020-12-11,0.208415
2022-10-14,0.208415
2019-12-13,0.536204
2020-11-13,0.208415
2021-07-13,0.208415
2024-07-08,0.528376
2014-06-10,1.604697
2017-07-14,0.536204
2018-09-14,0.536204
2018-11-15,0.536204
2020-01-16,0.536204
2024-02-14,0.528376
2019-08-15,0.536204
2022-11-14,0.208415
2016-06-09,1.604697
2018-01-18,0.536204
2018-04-12,0.536204
2025-12-15,0.540000
2014-09-16,1.604697
2017-12-15,0.536204
2024-01-16,0.528376
2021-01-15,0.208415
2018-10-18,0.536204
2019-02-14,0.536204
2019-07-02,0.536204
2019-11-14,0.536204
2021-09-14,0.208415
2025-03-17,0.528376
2025-10-15,0.540000
2016-09-15,1.604697
2018-05-17,0.536204
2019-05-16,0.536204
2021-05-14,0.208415
2013-06-10,1.604697
2017-06-14,0.536204
2020-10-16,0.208415
2026-03-16,0.540000
2020-03-13,0.536204
2020-07-13,0.208415
2024-11-15,0.528376
2021-03-12,0.208415
2022-08-15,0.208415
2025-11-17,0.540000
2026-05-15,0.540000
2015-09-16,1.604697
2015-12-16,1.604697
2019-10-17,0.536204
2023-04-17,0.264188
2023-05-12,0.264188
2026-07-15,0.600000
2017-02-13,1.604697
2023-06-14,0.264188
2021-12-10,0.208415
2022-01-14,0.208415
2023-12-14,0.528376
2022-05-13,0.208415
2024-10-15,0.528376
2025-06-16,0.528376
2025-08-04,0.540000
2017-09-15,0.536204
2019-01-17,0.536204
2020-09-14,0.208415
2019-09-13,0.536204
2020-04-13,0.536204
2024-04-12,0.528376
2025-05-15,0.528376
2022-03-14,0.208415
2023-03-14,0.264188
2017-08-15,0.536204
2020-05-15,0.536204
2020-08-14,0.208415
2026-01-16,0.540000
2013-09-16,1.604697
2017-10-17,0.536204
2019-03-15,0.536204
2024-08-15,0.528376
2014-12-16,1.604697
2018-02-15,0.536204
2022-09-16,0.208415
2026-08-17,0.600000
2014-02-26,1.604697
2022-06-13,0.208415
2024-03-14,0.528376
2020-06-12,0.207436
2023-02-14,0.264188
2025-07-02,0.528376
2020-02-13,0.536204
2022-02-14,0.208415
2024-05-14,0.528376
2012-12-17,0.978474
2016-02-10,1.604697
2017-11-15,0.536204
2022-04-14,0.208415
2022-12-12,0.208415
2015-06-10,1.604697
2018-06-14,0.536204
2018-07-13,0.536204
2026-02-17,0.540000
2018-12-14,0.536204
2019-06-13,0.536204
2021-06-11,0.208415
2023-11-14,0.528376
2026-06-15,0.600000
2013-12-16,1.604697
2021-04-13,0.208415
2023-07-17,0.264188
2025-09-16,0.540000
2021-08-13,0.208415
2023-08-14,0.264188
2026-04-16,0.540000
2018-03-09,0.536204
2019-04-11,0.536204
2024-09-17,0.528376
2015-03-10,1.604697
2021-02-12,0.208415
2024-12-16,0.528376