f/overrides/event-backup/gartx-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

555 B

1DateDividends
22009-12-300.005000
32013-12-050.527000
42017-12-110.334000
52018-12-280.067000
62023-12-280.224000
72012-12-050.043000
82014-12-300.068000
92021-12-300.019000
102022-12-230.312000
112010-12-080.057000
122015-12-100.097000
132016-12-090.037000
142018-12-110.144000
152019-12-300.090000
162014-12-090.278000
172021-12-140.851000
182024-12-300.077000
192025-12-110.176000
202011-12-070.113000
212020-12-300.010000
222022-12-130.108000
232010-04-090.009000
242019-12-120.225000
252009-12-080.008000
262015-12-300.022000
272020-12-140.051000
282025-12-300.016000