f/overrides/event-backup/com-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

535 B

1DateDividends
22019-06-250.074000
32022-03-220.503000
42024-09-240.330000
52018-09-250.072000
62019-03-190.058000
72019-12-230.058000
82023-09-190.314000
92018-06-190.062000
102020-03-240.032000
112022-06-221.164000
122022-12-200.861000
132023-06-210.547000
142023-12-210.195000
152024-03-190.283000
162024-06-250.325000
172025-03-250.254000
182025-06-240.254000
192017-12-190.022000
202018-12-270.433000
212019-09-240.069000
222021-12-213.010000
232024-12-230.159000
242025-09-230.262000
252025-12-230.116000
262026-03-240.200000
272026-06-230.270000