f/overrides/event-backup/drikx-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
22024-03-270.044000
32025-09-290.100000
42017-03-300.034000
52018-03-280.018000
62021-09-290.071000
72020-06-290.061000
82021-12-150.197000
92022-09-290.087000
102025-12-150.185000
112018-06-280.077000
122019-06-270.084000
132019-09-270.064000
142023-03-300.042000
152023-06-290.099000
162025-06-270.108000
172018-09-270.061000
182018-12-180.095000
192019-12-170.101000
202021-06-290.076000
212022-06-290.087000
222023-12-130.322000
232024-09-270.091000
242026-06-290.118000
252015-12-160.053000
262016-12-150.086000
272017-09-280.029000
282023-09-280.080000
292024-06-270.099000
302026-03-300.054000
312016-03-300.047000
322021-03-300.040000
332022-03-300.039000
342020-03-300.048000
352020-09-290.056000
362025-03-280.049000
372016-09-290.016000
382017-06-290.069000
392017-12-150.119000
402016-06-290.070000
412020-12-160.198000
422022-12-140.356000
432019-03-280.038000
442024-12-130.242000