f/overrides/event-backup/btbfx-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

655 B

1DateDividends
22004-12-090.010000
32012-12-110.515000
42012-12-310.036000
52019-12-100.513000
62000-12-122.801000
72007-12-121.438000
82014-12-111.505000
92021-12-140.996000
102023-12-123.801000
111996-12-160.110500
121997-12-150.221000
131999-12-091.301000
142002-10-210.039000
152009-12-100.469000
162011-12-080.447000
172022-12-132.538000
181998-12-151.580000
192003-12-110.475000
202001-12-110.836000
212002-12-100.556000
222015-12-102.345000
232017-12-121.156000
242024-12-123.875000
252025-12-167.067000
262005-12-081.073000
272008-12-111.360000
282010-12-090.448000
292013-12-180.770000
302020-12-153.149000
312006-12-121.827000
322016-12-082.124000
332018-12-111.927000