f/overrides/event-backup/erlvx-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

1.0 KiB

1DateDividends
22018-08-090.159000
32020-06-090.074000
42022-12-090.804000
52023-09-110.076000
62026-06-090.086000
72017-03-090.075000
82017-12-140.988000
92019-03-110.073000
102020-03-100.075000
112022-06-090.074000
122024-12-100.893000
132014-09-090.098000
142014-12-167.266000
152015-05-210.253000
162015-06-090.075000
172020-08-180.149000
182021-03-090.077000
192021-06-090.079000
202016-03-090.073000
212016-12-150.076000
222025-03-110.083000
232025-06-100.095000
242015-03-100.093000
252015-09-090.076000
262017-09-110.076000
272018-06-110.077000
282018-09-110.077000
292015-12-171.404000
302018-12-071.482000
312019-06-110.076000
322019-09-100.076000
332020-12-100.094000
342016-06-090.075000
352016-09-090.075000
362018-03-090.076000
372021-09-090.079000
382024-03-110.068000
392025-12-091.472000
402026-03-100.073000
412017-06-090.076000
422019-12-170.251000
432020-09-090.075000
442021-12-091.615000
452022-03-090.078000
462022-09-090.078000
472023-03-090.078000
482023-06-090.078000
492023-12-110.536000
502024-06-110.107000
512024-09-100.081000
522025-09-090.068000