f/overrides/event-backup/mgrdx-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

415 B

1DateDividends
22014-12-160.677000
32019-12-120.559000
42020-12-100.341000
52021-12-093.044000
62015-12-150.311000
72006-12-180.290000
82007-12-130.301000
92008-12-160.246000
102009-12-170.224000
112010-12-160.227000
122013-12-120.342000
132023-12-191.165000
142025-12-162.672000
152018-12-131.243000
162022-12-081.104000
172024-12-172.628000
182011-12-150.261000
192012-12-130.385000
202016-12-150.379000
212017-12-140.883000