f/overrides/event-backup/ihdg-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

915 B

1DateDividends
22020-12-210.354000
32026-06-250.690000
42016-09-260.155000
52017-09-260.145000
62020-09-220.150000
72024-03-220.215000
82024-06-250.325000
92024-09-250.105000
102015-09-210.084000
112014-12-190.801000
122019-06-240.320000
132019-12-230.197000
142021-09-240.520000
152022-12-230.170000
162025-06-250.670000
172025-09-250.150000
182014-09-220.084000
192016-06-200.310000
202017-06-260.030000
212018-06-250.061000
222019-03-260.050000
232022-09-260.320000
242023-03-270.165000
252023-06-260.360000
262015-12-210.342000
272024-12-310.109000
282024-12-260.296000
292016-03-210.038000
302021-12-270.192000
312022-03-250.365000
322023-12-220.120000
332026-03-260.040000
342020-06-230.215000
352015-03-230.041000
362019-09-240.155000
372020-03-240.046000
382021-03-250.218000
392021-06-240.335000
402022-12-073.383000
412014-06-230.056000
422017-03-270.230000
432022-06-240.675000
442023-09-250.070000
452025-12-260.074000
462015-06-220.337000