f/overrides/event-backup/fsmd-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

595 B

1DateDividends
22025-12-190.127000
32021-03-190.080000
42024-06-210.135000
52022-03-180.099000
62023-03-170.134000
72020-12-180.159000
82021-06-180.099000
92023-06-160.122000
102024-09-200.137000
112025-03-210.148000
122026-03-200.170000
132019-09-200.095000
142020-03-200.077000
152021-12-170.064000
162022-09-160.124000
172023-09-150.122000
182023-12-150.117000
192024-03-150.126000
202025-06-200.143000
212019-12-200.097000
222020-09-180.079000
232025-09-190.171000
242020-06-190.063000
252026-06-180.168000
262019-03-150.070000
272019-06-210.104000
282021-09-170.179000
292022-12-160.139000
302024-12-200.133000