f/overrides/event-backup/andvx-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
22014-12-180.100000
32017-09-210.100000
42021-03-180.060000
52021-06-170.045000
62022-12-221.711000
72024-09-190.045000
82024-12-190.236000
92025-03-200.056000
102025-06-180.056000
112026-03-190.040000
122016-12-150.586000
132018-06-210.083000
142018-09-200.086000
152018-12-202.707000
162022-03-170.060000
172025-12-181.079000
182014-03-200.083000
192020-09-170.041000
202022-06-160.059000
212025-09-180.090000
222023-09-210.073000
232024-06-200.038000
242026-06-180.033000
252014-09-180.097000
262015-09-170.100000
272016-09-220.097000
282017-06-220.111000
292019-03-210.090000
302021-12-160.717000
312022-09-220.060000
322023-06-220.048000
332015-06-180.114000
342017-03-160.112000
352017-12-213.953000
362019-06-200.065000
372023-12-211.283000
382024-03-210.048000
392016-03-170.118000
402018-03-220.092000
412020-12-170.049000
422021-09-160.066000
432014-06-190.101000
442015-03-190.108000
452015-12-170.114000
462016-06-160.109000
472016-12-220.118000
482019-09-190.058000
492019-12-191.469000
502020-03-190.083000
512020-06-180.055000
522023-03-160.059000