f/overrides/event-backup/gsrux-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

955 B

1DateDividends
22016-09-290.069000
32022-03-300.072000
42022-06-290.295000
52025-12-300.076000
62021-12-100.097000
72023-03-300.025000
82026-03-300.042000
92016-12-290.016000
102017-09-290.025000
112018-03-290.026000
122021-03-300.029000
132025-09-290.109000
142026-06-290.225000
152018-06-280.113000
162019-12-300.040000
172020-03-300.036000
182021-12-300.129000
192019-09-270.057000
202021-06-290.163000
212022-12-290.027000
222023-06-290.155000
232015-10-300.017000
242017-09-280.025000
252017-12-280.074000
262019-03-280.005000
272018-12-280.007000
282023-12-220.089000
292024-09-270.084000
302025-03-280.077000
312021-09-290.202000
322024-06-270.182000
332025-06-270.160000
342016-06-290.049000
352018-09-270.069000
362020-09-290.032000
372020-12-300.056000
382024-12-300.061000
392015-08-310.018000
402015-09-300.017000
412017-06-300.073000
422024-03-270.104000
432022-12-070.034000
442023-09-280.102000
452017-03-300.038000
462019-06-270.162000
472020-06-290.012000
482022-09-290.264000