f/overrides/event-backup/driqx-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

855 B

1DateDividends
22018-09-270.081000
32022-06-290.248000
42024-06-270.145000
52024-09-270.054000
62026-03-300.002000
72015-12-160.003000
82016-06-290.063000
92017-06-290.078000
102021-03-300.024000
112021-09-290.201000
122025-09-290.090000
132017-03-300.032000
142018-06-280.097000
152019-03-280.007000
162019-12-170.054000
172020-12-160.373000
182025-12-150.467000
192016-09-290.047000
202016-12-150.094000
212019-09-270.074000
222023-03-300.013000
232025-03-280.037000
242025-06-270.118000
252026-06-290.168000
262020-06-290.015000
272020-09-290.056000
282022-03-300.089000
292020-03-300.030000
302023-09-280.109000
312023-12-130.214000
322021-06-290.168000
332024-03-270.003000
342017-09-280.030000
352017-12-150.166000
362019-06-270.101000
372016-03-300.012000
382022-12-140.065000
392024-12-130.290000
402023-06-290.124000
412018-03-280.003000
422021-12-150.420000
432022-09-290.275000