f/overrides/event-backup/bglyx-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

355 B

1DateDividends
22023-06-220.069000
32023-12-140.070000
42024-09-190.037000
52025-09-180.056000
62026-03-190.120000
72023-03-160.043000
82022-12-150.767000
92024-03-210.064000
102025-03-200.074000
112022-09-150.057000
122025-12-263.279000
132022-06-160.051000
142024-06-210.103000
152024-12-270.048000
162025-06-180.106000
172026-06-180.085000
182023-09-210.054000