f/overrides/event-backup/ffsg-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

335 B

1DateDividends
22023-03-150.119700
32018-11-150.058300
42020-12-150.299600
52022-06-150.147200
62022-12-150.151500
72023-06-150.213500
82023-10-040.204700
92020-06-150.008400
102021-06-150.181300
112021-12-150.422500
122018-05-150.026000
132018-08-150.115900
142020-09-150.055500
152017-12-220.161700
162018-12-170.196600
172019-11-150.060700