f/overrides/event-backup/fivlx-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

515 B

1DateDividends
22010-04-300.038000
32010-12-300.027000
42013-12-060.211000
52020-12-290.004000
62023-12-270.005000
72023-12-080.197000
82024-12-270.053000
92007-12-070.808000
102008-12-050.114000
112014-12-050.317000
122016-12-090.209000
132020-12-040.143000
142021-12-030.405000
152022-12-090.156000
162009-12-040.134000
172010-12-030.222000
182011-12-020.245000
192012-12-070.265000
202015-12-040.116000
212019-12-060.295000
222006-12-080.064000
232017-12-080.150000
242018-12-070.242000
252024-12-130.239000
262025-12-120.328000