f/overrides/event-backup/fdvv-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

815 B

1DateDividends
22023-09-150.307000
32023-06-160.361000
42023-12-150.420000
52024-03-150.372000
62016-12-160.267000
72018-09-210.289000
82019-03-150.368000
92020-06-190.244000
102022-06-170.376000
112025-06-200.447000
122026-03-200.440000
132026-06-180.519000
142017-06-160.240000
152017-12-150.301000
162020-09-180.241000
172025-03-210.419000
182025-12-190.393000
192016-12-280.006000
202018-03-160.253000
212018-12-210.247000
222021-12-170.207000
232024-12-200.479000
242020-03-200.313000
252023-03-170.504000
262018-06-150.316000
272019-09-200.331000
282021-06-180.267000
292022-09-160.383000
302022-12-160.185000
312017-03-170.244000
322017-09-150.256000
332019-06-210.326000
342019-12-200.251000
352024-09-200.300000
362025-09-190.377000
372020-12-180.227000
382021-03-190.278000
392021-09-170.336000
402022-03-180.339000
412024-06-210.319000