f/overrides/event-backup/iqdy-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
22018-03-190.116000
32020-06-190.256000
42020-12-180.089000
52021-09-170.369000
62014-03-210.159000
72015-03-200.062000
82015-06-190.409000
92016-06-200.431000
102024-09-200.266000
112025-09-190.328000
122022-06-170.656000
132022-09-160.355000
142023-12-150.812000
152016-09-190.271000
162017-03-200.110000
172018-06-180.530000
182020-03-200.139000
192017-06-190.407000
202024-12-201.205000
212021-06-180.325000
222025-06-200.522000
232025-12-190.226000
242013-06-030.265000
252014-12-290.386000
262017-09-180.228000
272019-06-210.430000
282018-12-210.285000
292020-09-180.254000
302023-06-160.521000
312026-06-180.595000
322013-12-270.143000
332014-06-200.410000
342016-12-220.095000
352017-12-210.276000
362025-03-210.120000
372013-09-030.243000
382018-09-240.365000
392019-12-200.164000
402023-03-170.051000
412022-12-160.177000
422023-09-150.416000
432015-09-180.202000
442015-12-290.243000
452019-09-200.329000
462021-12-170.364000
472024-06-210.452000
482026-03-200.115000
492014-09-190.123000
502019-03-150.099000
512021-03-190.120000
522022-03-180.144000