f/overrides/event-backup/acwx-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
22024-12-170.767000
32008-12-290.004000
42016-12-210.390000
52013-12-180.566000
62016-06-220.727000
72018-06-190.731000
82019-06-170.786000
92024-06-110.784000
102011-12-200.498000
112013-06-270.689000
122010-12-210.490000
132011-06-220.634000
142017-06-200.671000
152017-12-190.528000
162020-06-150.505000
172021-12-130.818000
182009-12-220.276000
192010-06-230.516000
202022-12-130.382000
212012-06-210.692000
222018-12-180.360000
232021-06-100.617000
242014-06-250.908000
252020-12-140.491000
262015-12-210.308000
272018-12-280.021000
282025-06-160.847000
292026-06-150.852000
302014-12-170.459000
312015-06-250.687000
322023-12-200.714000
332009-06-230.551000
342021-12-300.085000
352023-06-070.798000
362025-12-161.049000
372019-12-160.794000
382022-06-090.837000