f/overrides/event-backup/greux-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
22017-12-112.939000
32019-06-270.094000
42019-09-270.094000
52021-03-300.047000
62022-09-290.105000
72023-06-290.080000
82023-09-280.073000
92016-09-290.126000
102023-12-130.294000
112017-09-290.135000
122020-09-290.041000
132022-12-130.361000
142016-12-091.831000
152017-09-280.135000
162018-06-280.110000
172019-12-122.260000
182025-12-112.975000
192026-06-290.064000
202016-03-300.125000
212018-03-290.063000
222018-12-111.890000
232020-03-300.074000
242020-06-290.063000
252021-06-290.060000
262025-09-290.084000
272017-06-300.073000
282018-09-270.242000
292019-12-200.040000
302021-09-290.060000
312024-09-270.079000
322015-12-100.516000
332020-12-140.998000
342024-12-120.597000
352015-09-290.129000
362023-03-300.039000
372024-06-270.082000
382026-03-300.068000
392022-06-290.058000
402016-12-220.090000
412017-03-300.139000
422019-03-280.047000
432021-12-140.817000
442022-03-300.021000
452024-03-270.114000
462025-03-280.083000
472016-06-290.143000
482025-06-270.094000