f/overrides/event-backup/fndb-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

55 lines
1.0 KiB
Plaintext

Date,Dividends
2020-12-10,0.078000
2021-03-24,0.062333
2021-09-22,0.081333
2015-06-29,0.053333
2016-06-27,0.061000
2025-12-10,0.120000
2020-09-23,0.098333
2023-03-22,0.083000
2017-04-03,0.049333
2016-10-03,0.057667
2017-06-26,0.057000
2023-09-20,0.087333
2014-06-30,0.042667
2015-03-30,0.049333
2015-12-21,0.056000
2025-09-24,0.109000
2020-06-24,0.071333
2016-12-19,0.056333
2019-06-26,0.073667
2026-06-24,0.110000
2013-10-01,0.011667
2017-09-18,0.064333
2024-12-11,0.115000
2015-09-28,0.056000
2017-12-18,0.067333
2022-12-07,0.098667
2025-03-26,0.098000
2019-03-20,0.069667
2023-12-06,0.106000
2018-03-16,0.055667
2024-06-26,0.101667
2019-09-25,0.068333
2020-03-25,0.074000
2022-03-23,0.070667
2018-09-25,0.068333
2018-12-12,0.074000
2024-03-20,0.090333
2021-06-23,0.071333
2024-09-25,0.098000
2021-12-08,0.097333
2021-12-30,0.002667
2023-06-21,0.090667
2025-06-25,0.104000
2013-12-23,0.032333
2019-12-12,0.102333
2016-03-21,0.048333
2022-09-21,0.089333
2026-03-25,0.105000
2018-06-26,0.071333
2022-06-22,0.088667
2014-03-31,0.035667
2014-09-29,0.041333
2014-12-22,0.045667