f/overrides/event-backup/dfax-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

415 B

1DateDividends
22023-12-190.177000
32024-09-170.182000
42026-03-240.058000
52021-12-160.244000
62022-03-220.017000
72022-09-200.227000
82023-03-210.042000
92022-06-220.281000
102022-12-200.187000
112024-12-170.234000
122025-06-240.362000
132023-06-210.302000
142024-03-190.028000
152025-09-230.185000
162025-12-160.230000
172026-06-230.385000
182021-09-210.121000
192023-09-190.214000
202024-06-180.296000
212025-03-250.069000