f/overrides/event-backup/idog-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
22021-09-230.297000
32023-06-220.635000
42025-09-180.360000
52021-03-180.243000
62016-06-220.438000
72019-09-190.167000
82022-12-220.163000
92023-09-210.228000
102023-12-210.244000
112024-03-210.218000
122024-06-200.677000
132015-12-230.141000
142025-06-200.580000
152025-12-180.376000
162026-06-180.931000
172025-03-200.326000
182015-09-230.207000
192018-06-210.386000
202018-09-200.199000
212019-12-190.501000
222021-12-220.114000
232022-03-240.347000
242014-03-260.250000
252018-03-220.324000
262020-06-180.213000
272021-06-170.419000
282024-12-190.216000
292017-09-210.148000
302014-06-250.528000
312015-06-240.466000
322016-09-210.165000
332016-12-210.149000
342018-12-200.162000
352023-03-230.344000
362024-09-190.304000
372013-12-260.208000
382019-06-200.502000
392020-12-220.133000
402017-06-210.466000
412019-03-210.317000
422022-06-230.367000
432022-09-220.258000
442026-03-190.181000
452017-12-210.180000
462014-09-240.250000
472014-12-240.163000
482015-03-250.170000
492017-03-220.160000
502020-03-190.238000
512020-09-170.196000
522013-09-250.212000