f/overrides/event-backup/dwfix-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

555 B

1DateDividends
22014-06-090.048000
32019-12-160.441000
42025-12-100.060000
52012-06-080.041000
62013-06-100.051000
72013-12-110.134000
82014-03-100.114000
92016-12-140.276000
102012-09-100.037000
112017-06-290.120000
122020-12-140.180000
132023-12-110.226000
142025-06-270.054000
152025-09-290.044000
162026-06-290.076000
172013-03-080.001000
182018-12-170.765000
192017-12-140.017000
202025-03-280.036000
212012-12-120.224000
222021-12-130.187000
232023-09-280.155000
242024-09-270.135000
252024-12-100.124000
262026-03-300.050000
272014-12-150.743000
282015-12-150.717000