f/overrides/event-backup/desix-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

675 B

1DateDividends
22022-12-140.039000
32024-03-270.014000
42026-03-300.018000
52019-09-270.097000
62024-09-270.091000
72025-09-290.104000
82020-09-290.073000
92021-09-290.094000
102023-12-130.098000
112025-06-270.074000
122018-06-280.022000
132018-09-270.062000
142018-12-180.015000
152019-06-270.042000
162025-12-150.113000
172019-03-280.020000
182020-12-160.024000
192024-06-270.052000
202022-06-290.029000
212023-09-280.082000
222024-12-130.106000
232022-09-290.111000
242023-06-290.052000
252025-03-280.018000
262026-06-290.077000
272019-12-170.028000
282020-06-290.035000
292021-03-300.013000
302021-06-290.044000
312020-03-300.014000
322021-12-150.223000
332022-03-300.027000
342023-03-300.026000