f/overrides/event-backup/jenyx-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

756 B

1DateDividends
22024-06-130.124000
32024-09-110.134000
42025-03-130.087000
52019-03-140.160000
62019-09-180.172000
72023-09-140.190000
82020-03-130.173000
92023-03-160.169000
102020-12-155.260000
112024-03-140.143000
122017-12-201.251000
132020-06-120.172000
142021-09-100.165000
152022-12-151.383000
162018-03-140.126000
172018-06-200.175000
182021-06-100.142000
192025-11-1316.880000
202017-06-220.153000
212019-06-140.171000
222019-12-183.871000
232020-09-170.174000
242021-03-160.173000
252021-12-154.177000
262022-06-160.175000
272024-11-136.927000
282017-09-210.120000
292018-12-074.133000
302025-09-110.055000
312026-06-180.016000
322023-12-144.313000
332025-06-180.121000
342018-09-200.131000
352023-06-080.138000
362022-09-080.134000
372017-03-150.132000
382022-03-100.141000