f/overrides/event-backup/facfx-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

935 B

1DateDividends
22023-05-120.019000
32005-05-060.075000
42007-12-280.303000
52014-12-290.565000
62015-12-290.386000
72018-05-110.386000
82019-12-300.421000
92009-05-150.035000
102017-12-280.562000
112024-05-100.028000
122013-05-030.142000
132013-12-270.415000
142004-05-070.031000
152005-12-290.195000
162008-12-260.279000
172010-12-300.216000
182011-05-060.036000
192012-12-280.225000
202026-05-150.167000
212022-12-290.294000
222025-12-300.394000
232003-12-260.070000
242006-12-280.256000
252007-05-040.187000
262018-12-280.611000
272020-12-300.407000
282021-05-140.457000
292025-05-090.160000
302004-12-290.150000
312006-05-050.205000
322016-05-130.245000
332022-05-130.394000
342023-12-280.239000
352024-12-300.266000
362008-05-090.300000
372011-12-290.288000
382015-05-080.257000
392021-12-300.598000
402010-05-070.052000
412012-05-040.024000
422014-05-020.261000
432017-05-120.235000
442019-05-100.265000
452020-05-080.315000
462009-12-280.259000
472016-12-280.305000