f/overrides/event-backup/futy-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

995 B

1DateDividends
22020-09-180.321000
32025-12-190.352000
42015-12-180.253000
52016-09-160.281000
62019-06-210.289000
72019-12-200.314000
82023-06-160.317000
92014-12-190.216000
102016-06-170.261000
112022-09-160.346000
122022-12-160.295000
132018-03-160.269000
142021-03-190.320000
152021-06-180.317000
162021-12-170.303000
172014-06-200.209000
182015-03-200.475000
192016-12-160.278000
202017-06-160.272000
212023-09-150.384000
222025-06-200.369000
232026-03-200.386000
242014-09-190.300000
252019-09-200.289000
262024-12-200.342000
272024-09-200.366000
282025-03-210.378000
292015-09-180.239000
302021-09-170.310000
312023-03-170.357000
322023-12-150.293000
332020-12-180.288000
342022-03-180.320000
352024-03-150.385000
362025-09-190.373000
372013-12-200.213000
382017-12-150.270000
392018-09-210.276000
402020-06-190.302000
412026-06-180.401000
422017-03-170.245000
432020-03-200.336000
442024-06-210.349000
452018-12-210.249000
462019-03-150.301000
472014-03-210.203000
482015-06-190.241000
492017-09-150.257000
502018-06-150.291000