f/overrides/event-backup/dhgax-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

1.0 KiB

1DateDividends
22015-09-300.092000
32016-12-300.444000
42017-03-310.176000
52010-06-300.179000
62011-06-300.135000
72011-12-290.488000
82013-06-280.138000
92015-03-310.204000
102026-03-310.015000
112020-03-310.022000
122020-12-300.482000
132022-03-310.076000
142024-06-280.043000
152024-12-310.540000
162014-03-310.106000
172022-09-300.110000
182024-03-280.026000
192010-03-310.221000
202010-12-300.612000
212011-03-310.068000
222012-12-280.666000
232013-09-300.074000
242024-09-300.044000
252025-06-300.081000
262010-04-300.021000
272019-12-310.089000
282013-03-280.138000
292021-09-300.038000
302012-06-290.055000
312014-12-310.746000
322018-09-280.170000
332018-12-310.589000
342025-09-300.089000
352025-03-310.062000
362025-12-310.422000
372026-06-300.084000
382010-09-300.065000
392014-09-300.095000
402017-06-300.077000
412020-06-300.022000
422023-12-200.348000
432017-12-290.272000
442011-09-300.103000
452012-09-280.075000
462013-12-300.288000
472014-06-300.089000
482015-12-310.189000
492012-03-300.036000
502015-06-300.049000
512021-03-310.238000
522021-12-220.895000
532022-12-210.614000