f/overrides/event-backup/cbarx-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

635 B

1DateDividends
22020-09-280.120000
32020-12-290.695000
42024-03-260.174000
52024-12-271.886000
62019-09-260.130000
72021-06-280.108000
82024-06-260.189000
92025-06-260.195000
102025-12-291.818000
112021-12-302.998000
122022-06-280.140000
132022-09-280.158000
142019-12-270.155000
152021-03-290.109000
162023-12-280.188000
172019-03-270.125000
182021-09-280.095000
192022-12-280.505000
202025-03-270.173000
212023-03-290.166000
222023-09-270.519000
232019-06-260.135000
242019-12-020.760000
252022-03-290.111000
262024-09-260.198000
272026-06-260.199000
282020-03-270.125000
292020-06-260.126000
302023-06-280.168000
312025-09-260.199000
322026-03-270.170000