f/overrides/event-backup/hfsax-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

19 lines
666 B
Plaintext

Date,Dividends,ctime
2017-04-20,0.23,2018-08-21 17:51:11
2016-11-15,0.837,2018-08-21 17:51:11
2017-11-15,1.567,2018-08-21 17:51:11
2013-10-15,0.028,2018-08-21 17:51:11
2015-10-15,0.089,2018-08-21 17:51:11
2014-12-29,1.975,2018-08-21 17:51:11
2015-12-29,0.32,2018-08-21 17:51:11
2016-12-28,0.446,2018-08-21 17:51:11
2017-12-27,0.734,2018-08-21 17:51:11
2018-04-16,0.092,2018-08-21 17:51:11
2017-07-14,0.086,2018-08-21 17:51:11
2018-07-16,0.057,2018-08-21 17:51:11
2013-04-16,0.255,2018-08-21 17:51:11
2013-12-27,0.902,2018-08-21 17:51:11
2013-07-15,0.103,2018-08-21 17:51:11
2012-12-21,1.083,2018-08-21 17:51:11
2017-10-16,0.068,2018-08-21 17:51:11