f/overrides/event-backup/giffx-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

1.1 KiB

1DateDividends
22017-09-140.114000
32021-12-144.893000
42016-09-150.111000
52016-03-170.111000
62026-03-260.090000
72014-03-200.100000
82017-12-132.841000
92018-09-130.130000
102020-12-110.621000
112021-09-230.098000
122022-06-230.100000
132025-03-270.089000
142025-06-260.089000
152014-09-180.101000
162018-06-210.129000
172020-09-170.125000
182022-09-220.119000
192023-03-230.108000
202026-06-250.090000
212017-03-160.114000
222021-06-240.098000
232014-12-122.950000
242015-03-190.100000
252015-09-170.112000
262015-12-111.921000
272016-06-160.111000
282013-03-210.094000
292016-12-131.652000
302020-03-190.124000
312022-12-142.256000
322013-09-190.096000
332018-03-220.113000
342021-03-250.095000
352023-09-280.108000
362013-12-130.772000
372023-12-132.487000
382018-12-142.749000
392014-06-190.101000
402017-06-150.112000
412013-06-200.093000
422024-12-122.094000
432023-06-220.108000
442019-09-190.125000
452024-09-260.089000
462025-12-111.716000
472019-03-210.127000
482015-06-180.100000
492025-09-250.089000
502012-12-070.159000
512019-06-200.125000
522019-12-131.772000
532020-06-180.124000
542022-03-240.094000
552024-03-280.089000
562024-06-270.089000