f/overrides/event-backup/abnax-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

2.8 KiB

1DateDividends
22010-07-160.014000
32024-04-030.054000
42018-11-070.008000
52011-03-160.029000
62013-12-120.016000
72018-12-070.054000
82019-12-060.042000
92022-01-050.006000
102023-11-080.056000
112025-07-090.045000
122011-01-130.012000
132017-07-120.020000
142018-03-070.001000
152018-06-060.043000
162022-12-070.085000
172010-08-160.005000
182025-12-030.066000
192014-05-120.044000
202014-11-110.002000
212017-09-060.019000
222011-04-130.071000
232019-05-080.024000
242020-05-060.007000
252021-05-050.057000
262016-07-120.050000
272011-05-120.043000
282018-10-100.022000
292025-01-080.006000
302025-06-040.032000
312026-07-080.091000
322010-06-170.027000
332018-08-080.032000
342025-03-050.022000
352016-12-090.044000
362017-08-090.025000
372022-02-090.029000
382025-08-060.030000
392012-12-130.010000
402022-04-060.056000
412025-09-100.044000
422026-08-050.051000
432020-08-050.012000
442023-12-060.030000
452024-05-080.077000
462022-09-070.089000
472017-05-100.015000
482011-06-150.076000
492012-06-130.055000
502013-09-120.011000
512014-06-090.044000
522011-11-100.017000
532020-12-090.037000
542022-06-080.115000
552025-02-050.011000
562025-05-070.046000
572026-03-040.005000
582014-12-120.053000
592023-04-050.069000
602024-06-050.063000
612016-09-070.023000
622020-10-070.087000
632021-08-110.073000
642023-06-070.049000
652014-07-110.030000
662012-11-130.018000
672018-09-120.023000
682023-10-040.029000
692024-02-070.006000
702011-10-130.008000
712018-07-110.050000
722024-12-040.045000
732011-07-140.046000
742015-12-110.071000
752016-10-040.018000
762017-12-080.036000
772018-05-090.025000
782019-07-100.049000
792023-03-080.004000
802023-05-030.053000
812013-10-110.002000
822026-04-080.034000
832023-08-090.043000
842024-07-030.046000
852011-08-110.018000
862022-07-060.043000
872022-11-090.003000
882024-10-090.025000
892025-11-050.035000
902021-09-080.056000
912013-11-120.002000
922015-08-120.018000
932015-09-090.023000
942016-08-090.039000
952019-09-110.031000
962020-04-080.026000
972020-09-090.047000
982013-08-130.015000
992024-09-110.027000
1002024-08-070.037000
1012019-04-100.001000
1022017-06-070.021000
1032022-08-100.105000
1042023-01-040.007000
1052024-03-060.015000
1062024-11-060.021000
1072016-06-070.005000
1082013-05-100.014000
1092014-04-080.005000
1102017-03-080.005000
1112010-12-150.010000
1122021-04-070.041000
1132021-06-090.065000
1142021-12-080.116000
1152022-05-040.074000
1162023-02-080.010000
1172023-07-050.052000
1182017-04-050.027000
1192012-05-110.046000
1202018-04-110.016000
1212022-03-090.031000
1222025-10-080.025000
1232010-11-150.016000
1242017-11-080.008000
1252021-03-100.026000
1262021-07-070.061000
1272025-04-090.077000
1282014-08-130.026000
1292012-07-130.009000
1302017-10-040.012000
1312020-03-040.009000
1322023-09-060.037000
1332012-04-110.011000
1342011-02-160.015000
1352018-06-290.043000
1362019-06-050.032000
1372019-08-070.011000
1382019-10-090.038000
1392026-06-030.085000
1402010-05-190.025000
1412026-05-060.050000
1422021-10-060.036000