f/overrides/event-backup/epi-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

53 lines
1.0 KiB
Plaintext

Date,Dividends
2009-09-21,0.045000
2015-03-23,0.031000
2017-12-26,0.026000
2018-09-25,0.111000
2022-03-25,0.115000
2020-09-22,0.035000
2021-06-24,0.085000
2009-12-21,0.006000
2011-06-22,0.062000
2012-03-26,0.010000
2016-06-20,0.125000
2018-12-24,0.008000
2020-03-24,0.017000
2016-09-26,0.070000
2016-12-23,0.006000
2020-12-21,0.081000
2019-12-23,0.041000
2020-06-23,0.094000
2009-03-23,0.007000
2009-06-22,0.002000
2010-09-20,0.065000
2014-09-22,0.068000
2017-09-26,0.080000
2018-12-28,0.028000
2021-03-25,0.043000
2023-06-26,0.060000
2008-12-22,0.091000
2013-09-23,0.063000
2019-09-24,0.130000
2024-12-26,0.121000
2012-09-24,0.083000
2013-06-24,0.068000
2014-06-23,0.059000
2015-12-21,0.024000
2018-06-25,0.085000
2019-03-26,0.120000
2010-06-28,0.065000
2012-06-25,0.045000
2014-03-24,0.099000
2015-06-22,0.067000
2017-03-27,0.075000
2021-09-24,0.110000
2018-03-20,0.061000
2021-12-27,0.192000
2010-12-22,0.013000
2011-09-26,0.098000
2012-12-24,0.024000
2015-09-21,0.116000
2016-03-21,0.010000
2017-06-26,0.055000
2022-06-24,1.845000