f/overrides/event-backup/enfr-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
22020-05-070.284000
32014-03-260.153000
42023-08-100.320000
52020-12-220.032000
62023-05-110.308000
72015-12-230.063000
82017-03-220.156000
92021-05-130.239000
102023-11-090.322000
112021-02-110.352000
122021-11-100.627000
132023-02-090.315000
142025-02-120.356000
152025-08-130.386000
162014-09-240.162000
172015-09-230.131000
182016-09-210.207000
192021-08-120.244000
202026-08-120.386000
212015-03-250.183000
222020-11-120.244000
232022-08-110.276000
242024-02-080.343000
252026-05-130.386000
262025-05-140.377000
272026-02-110.392000
282018-06-210.192000
292014-12-240.115000
302017-09-210.243000
312019-08-080.312000
322020-08-130.263000
332019-05-090.288000
342020-02-130.288000
352021-12-220.028000
362014-06-250.181000
372015-06-240.206000
382016-12-210.084000
392018-03-220.174000
402024-11-130.346000
412025-11-120.380000
422022-02-100.211000
432022-05-120.322000
442024-05-090.341000
452024-08-080.342000
462018-09-200.170000
472019-02-140.259000
482017-06-210.241000
492017-12-210.049000
502013-12-260.066000
512016-06-220.244000
522018-12-200.186000
532019-11-140.350000
542022-11-090.296000