f/overrides/event-backup/creyx-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

675 B

1DateDividends
22018-12-130.256000
32021-12-140.554000
42022-06-210.485000
52023-06-210.134000
62024-06-140.238000
72019-03-200.091000
82021-09-210.067000
92022-09-210.073000
102018-03-210.084000
112018-06-210.601000
122019-06-170.213000
132021-06-180.379000
142023-09-210.093000
152017-03-220.097000
162025-06-130.178000
172025-12-160.419000
182026-06-220.206000
192019-12-131.298000
202021-03-180.072000
212024-12-170.775000
222017-12-131.864000
232020-09-220.064000
242022-03-180.066000
252023-03-200.073000
262020-03-200.084000
272020-06-170.277000
282017-06-210.146000
292017-09-210.097000
302018-09-210.080000
312019-09-200.087000
322020-12-110.523000
332022-12-130.083000
342023-12-192.984000