f/overrides/event-backup/dvlu-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

615 B

1DateDividends
22025-06-260.074000
32026-03-260.027000
42019-12-130.096000
52020-03-260.083000
62021-12-230.134000
72023-09-220.026000
82025-12-120.086000
92020-09-240.051000
102024-09-260.043000
112026-06-250.099000
122025-09-250.058000
132019-03-210.043000
142022-03-250.078000
152022-06-240.121000
162022-09-230.081000
172023-12-220.138000
182024-12-130.141000
192019-09-250.117000
202020-12-240.073000
212021-06-240.103000
222021-09-230.067000
232025-03-270.045000
242024-03-210.042000
252024-06-270.082000
262019-06-140.079000
272021-03-250.030000
282023-03-240.101000
292020-06-250.034000
302022-12-230.203000
312023-06-270.082000