f/overrides/event-backup/fgiwx-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

515 B

1DateDividends
22016-12-290.348000
32018-12-170.215000
42019-12-160.570000
52021-12-150.622000
62021-12-300.207000
72022-12-150.137000
82024-12-160.576000
92016-12-150.485000
102025-12-150.896000
112025-10-090.035000
122018-12-280.268000
132022-12-290.339000
142023-12-280.283000
152026-05-140.675000
162017-12-280.278000
172017-12-150.387000
182018-09-140.143000
192019-12-300.285000
202022-10-130.191000
212024-12-300.302000
222016-09-150.012000
232020-12-300.144000
242021-10-140.053000
252025-12-300.313000
262020-10-140.041000