f/overrides/event-backup/fcpi-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

575 B

1DateDividends
22023-09-150.161000
32025-06-200.183000
42025-09-190.165000
52023-03-170.181000
62021-12-300.006000
72020-12-180.543000
82022-06-170.123000
92024-09-200.153000
102026-03-200.201000
112019-12-200.113000
122022-09-160.151000
132024-06-210.140000
142022-03-180.141000
152021-12-170.134000
162022-12-160.132000
172025-12-190.335000
182020-03-200.129000
192021-09-170.102000
202024-12-200.135000
212020-09-180.119000
222023-06-160.172000
232024-03-150.130000
242026-06-180.175000
252021-03-190.079000
262021-06-180.081000
272023-12-150.144000
282025-03-210.180000
292020-06-190.112000