f/overrides/event-backup/eudg-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
22023-12-220.110000
32024-06-250.450000
42015-09-210.030000
52017-03-270.080000
62018-09-250.079000
72018-12-240.145000
82022-03-250.250000
92023-03-270.130000
102017-12-260.032000
112020-03-240.113000
122014-06-230.066000
132014-09-220.057000
142015-12-210.049000
152016-09-260.060000
162016-12-230.043000
172017-09-260.050000
182021-09-240.410000
192025-12-260.197000
202016-06-200.330000
212019-03-260.135000
222019-06-240.265000
232021-03-250.193000
242021-06-240.355000
252025-06-250.470000
262024-12-310.053000
272025-03-260.090000
282015-03-230.116000
292019-09-240.145000
302020-12-210.111000
312021-12-270.067000
322024-03-220.090000
332024-09-250.050000
342026-03-260.125000
352017-06-260.255000
362025-09-250.065000
372026-06-250.535000
382018-06-250.379000
392020-06-230.165000
402020-09-220.180000
412022-06-240.385000
422022-09-260.150000
432023-06-260.400000
442018-03-200.065000
452024-12-260.076000
462014-12-190.093000
472015-06-220.279000
482019-12-230.096000
492022-12-230.054000
502023-09-250.040000