f/overrides/event-backup/daabx-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

495 B

1DateDividends
22021-06-290.047000
32023-06-290.059000
42023-12-130.175000
52024-06-270.059000
62024-09-270.054000
72025-06-270.069000
82020-09-290.037000
92021-03-300.029000
102025-09-290.086000
112025-12-150.072000
122022-03-300.034000
132023-03-300.048000
142023-09-280.050000
152026-03-300.078000
162026-06-290.085000
172020-12-160.133000
182021-12-150.813000
192022-09-290.056000
202024-12-130.058000
212025-03-280.066000
222021-09-290.051000
232022-06-290.053000
242022-12-140.435000
252024-03-270.048000