f/overrides/event-backup/durpx-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

755 B

1DateDividends
22022-12-140.405000
32024-06-270.085000
42019-06-270.052000
52019-09-270.052000
62021-06-290.067000
72022-03-300.062000
82024-03-270.074000
92017-12-150.038000
102018-06-280.041000
112021-09-290.066000
122021-12-150.442000
132020-09-290.059000
142023-06-290.083000
152023-09-280.082000
162025-12-150.059000
172020-06-290.058000
182021-03-300.057000
192022-06-290.083000
202023-12-130.067000
212024-09-270.075000
222025-09-290.076000
232023-03-300.075000
242025-03-280.070000
252025-06-270.082000
262017-06-290.016000
272018-09-270.049000
282019-12-170.056000
292020-03-300.050000
302024-12-130.060000
312026-06-290.077000
322017-09-280.036000
332018-03-280.034000
342018-12-180.061000
352022-09-290.076000
362019-03-280.035000
372020-12-160.059000
382026-03-300.071000