f/overrides/event-backup/dgygx-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

1.0 KiB

1DateDividends
22015-06-300.267000
32018-03-290.778000
42021-09-300.049000
52025-12-166.505000
62024-06-280.080000
72014-03-310.300000
82015-09-300.241000
92019-12-202.350000
102022-03-310.439000
112018-12-205.095000
122021-03-310.208000
132025-03-310.988000
142025-09-300.035000
152013-12-230.249000
162014-09-300.257000
172014-12-302.207000
182016-06-300.184000
192018-06-290.141000
202023-03-310.884000
212025-06-300.078000
222026-06-300.050000
232021-12-211.681000
242022-06-300.091000
252022-12-212.812000
262024-03-281.088000
272017-03-312.428000
282018-09-280.117000
292019-03-291.090000
302020-12-211.496000
312024-09-300.052000
322019-06-280.114000
332020-03-310.538000
342021-06-300.074000
352022-09-300.094000
362016-03-313.589000
372017-06-300.148000
382017-09-290.114000
392017-12-223.367000
402023-06-300.106000
412026-03-310.530000
422013-09-300.239000
432016-12-225.481000
442020-06-300.086000
452023-12-202.076000
462019-09-300.089000
472020-09-300.070000
482023-09-290.083000
492024-12-165.693000
502014-06-300.275000
512015-03-311.336000
522015-12-2311.076000
532016-09-300.151000