f/overrides/event-backup/drijx-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

875 B

1DateDividends
22023-06-290.097000
32023-12-130.349000
42024-06-270.098000
52025-03-280.049000
62018-09-270.062000
72019-06-270.085000
82026-06-290.125000
92016-06-290.071000
102018-06-280.077000
112020-03-300.047000
122020-06-290.063000
132024-12-130.246000
142025-06-270.112000
152025-09-290.105000
162016-03-300.047000
172016-12-150.073000
182017-09-280.029000
192021-06-290.075000
202021-09-290.071000
212025-12-150.287000
222016-09-290.025000
232018-03-280.018000
242019-03-280.038000
252019-12-170.107000
262022-03-300.038000
272022-06-290.084000
282026-03-300.057000
292015-12-160.054000
302019-09-270.065000
312020-12-160.450000
322018-12-180.097000
332021-03-300.040000
342021-12-150.214000
352023-03-300.040000
362024-03-270.043000
372017-12-150.120000
382017-06-290.073000
392020-09-290.055000
402022-09-290.085000
412022-12-140.360000
422023-09-280.080000
432024-09-270.095000
442017-03-300.035000