f/overrides/event-backup/fafdx-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

875 B

1DateDividends
22008-09-120.156000
32014-12-220.072000
42015-12-180.082000
52023-12-150.637000
62024-12-201.680000
72002-12-130.080000
82004-09-101.480000
92003-12-120.060000
102005-09-161.569000
112007-12-140.353000
122018-12-070.708000
131997-09-050.020000
142001-09-070.080000
152001-12-140.060000
162004-12-100.350000
172016-12-090.039000
182021-12-171.220000
191998-09-041.070000
201999-09-030.090000
212009-09-110.096000
222012-12-210.074000
232017-12-080.081000
241997-12-120.040000
252003-09-050.080000
262007-09-141.373000
272008-12-120.103000
282012-09-070.030000
292019-12-200.283000
302000-09-080.120000
312005-12-090.319000
322014-09-050.045000
332020-12-180.561000
342006-12-081.664000
352011-12-090.013000
362013-09-060.056000
372013-12-200.036000
382022-12-161.478000
392000-12-150.070000
402006-09-151.809000
412014-12-260.008000
422025-12-192.609000
431996-12-200.010000
442003-12-300.010000