f/overrides/event-backup/esge-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

435 B

1DateDividends
22022-06-090.276000
32024-06-110.250000
42025-12-160.732000
52018-12-180.422000
62021-12-130.831000
72024-12-170.531000
82025-06-160.373000
92017-06-200.238500
102017-12-190.449500
112018-06-190.248000
122022-12-130.531000
132023-06-070.227000
142023-12-200.621000
152026-06-150.402000
162016-12-210.072500
172019-06-170.260000
182019-12-160.671000
192020-06-150.211000
202020-12-140.339000
212021-06-100.226000
222024-12-300.022000