f/overrides/event-backup/mxfrx-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

635 B

1DateDividends
22020-06-240.175000
32022-09-060.019000
42022-12-300.005000
52024-12-270.312000
62015-06-190.258000
72018-06-220.255000
82018-12-270.335000
92021-09-030.025000
102022-06-230.100000
112017-12-270.283000
122025-12-290.371000
132016-06-240.262000
142020-12-290.161000
152025-09-050.022000
162015-12-290.266000
172017-06-230.233000
182023-06-230.230000
192017-09-060.007000
202019-12-270.198000
212021-12-290.050000
222023-09-060.021000
232016-09-070.005000
242016-12-280.267000
252018-09-070.022000
262023-12-270.210000
272015-09-040.004000
282019-06-240.238000
292019-09-060.020000
302021-06-230.147000
312022-12-280.138000
322024-09-060.006000