f/overrides/event-backup/ftxl-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

795 B

1DateDividends
22020-03-260.059000
32021-09-230.055000
42021-12-230.105000
52024-09-260.102000
62024-12-130.166000
72025-12-120.120000
82016-12-210.027000
92019-09-250.119000
102025-09-250.077000
112022-06-240.098000
122024-06-270.125000
132022-09-230.124000
142022-12-230.187000
152026-03-260.013000
162017-06-220.038000
172019-12-130.103000
182018-12-180.051000
192019-03-210.053000
202020-12-240.078000
212023-03-240.089000
222025-06-260.137000
232018-03-220.027000
242018-06-210.060000
252019-06-140.106000
262024-03-210.077000
272017-03-230.026000
282018-09-140.043000
292020-09-240.057000
302021-03-250.007000
312023-12-220.166000
322017-12-210.031000
332020-06-250.094000
342023-09-220.132000
352026-06-250.036000
362022-03-250.062000
372023-06-270.103000
382025-03-270.034000
392017-09-210.046000
402021-06-240.035000