f/overrides/event-backup/dvye-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

1.2 KiB

1DateDividends
22016-12-220.082000
32016-12-280.031000
42017-03-240.121000
52017-09-260.902000
62019-03-200.245000
72021-12-130.444000
82014-06-240.826000
92016-06-210.684000
102024-03-210.106000
112025-03-180.177000
122023-06-070.866000
132023-09-260.693000
142021-09-240.676000
152025-09-160.551000
162018-03-220.157000
172018-09-261.051000
182020-06-150.720000
192023-03-230.090000
202024-09-250.810000
212014-12-190.053000
222016-09-260.674000
232017-12-210.457000
242021-12-300.091000
252013-09-300.754000
262015-06-240.779000
272025-06-160.684000
282015-09-250.758000
292017-06-200.531000
302020-12-140.320000
312022-03-240.247000
322023-12-200.748000
332025-12-150.420000
342012-03-230.142000
352013-06-250.831000
362026-06-150.572000
372018-06-190.511000
382026-03-170.104000
392012-06-200.886000
402015-03-250.250000
412020-12-300.076000
422013-03-220.238000
432020-03-250.354000
442020-09-230.493000
452015-12-210.177000
462018-12-180.412000
472024-12-171.423000
482013-12-170.416000
492024-06-110.711000
502022-09-260.773000
512014-09-240.761000
522019-06-170.938000
532021-06-101.302000
542012-12-140.132000
552021-03-250.300000
562022-12-130.734000
572019-09-240.782000
582022-06-090.633000
592019-12-160.458000
602012-09-240.754000
612014-03-250.245000