f/ace-dividend.csv at bb8e39605ef99b652f313b9fbf152f26d568e613

gmp/f

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

1.6 KiB

Raw Blame History

1	Date	Dividends
2	20141215	0.650000
3	20140926	0.650000
4	20140721	0.650000
5	20140611	0.000000
6	20140605	0.000000
7	20140520	0.000000
8	20140516	0.000000
9	20140402	0.000000
10	20140326	0.630000
11	20140113	0.630000
12	20130926	0.510000
13	20130719	0.510000
14	20130326	0.490000
15	20121213	0.490000
16	20120926	0.490000
17	20120727	0.490000
18	20120328	0.470000
19	20120110	0.470000
20	20110928	0.350000
21	20110628	0.350000
22	20110330	0.330000
23	20101214	0.330000
24	20100929	0.330000
25	20100723	0.330000
26	20100329	0.310000
27	20091215	0.310000
28	20090929	0.310000
29	20090724	0.310000
30	20090327	0.250000
31	20090106	0.270000
32	20081009	0.260000
33	20080626	0.290000
34	20080327	0.270000
35	20071227	0.270000
36	20070926	0.270000
37	20070627	0.270000
38	20070328	0.250000
39	20061227	0.250000
40	20060927	0.250000
41	20060628	0.250000
42	20060329	0.230000
43	20051228	0.230000
44	20050928	0.230000
45	20050628	0.230000
46	20050329	0.210000
47	20041229	0.210000
48	20040928	0.210000
49	20040628	0.210000
50	20040329	0.190000
51	20031229	0.190000
52	20030926	0.190000
53	20030626	0.190000
54	20030327	0.170000
55	20021224	0.170000
56	20020925	0.170000
57	20020626	0.170000
58	20020326	0.150000
59	20011227	0.150000
60	20010926	0.150000
61	20010627	0.150000
62	20010511	0.000000
63	20010328	0.130000
64	20001227	0.130000
65	20000927	0.130000
66	20000628	0.130000
67	20000329	0.110000
68	19991229	0.110000
69	19990928	0.110000
70	19990628	0.110000
71	19990329	0.090000
72	19981211	0.090000
73	19980928	0.090000
74	19980626	0.090000
75	19980327	0.080000
76	19971210	0.080000
77	19970926	0.073330
78	19970626	0.073330
79	19970326	0.060000
80	19961227	0.060000
81	19960926	0.060000
82	19960612	0.060000
83	19960327	0.046670
84	19951227	0.046670
85	19950927	0.046670
86	19950628	0.046670
87	19950327	0.036670
88	19941223	0.036670
89	19940926	0.036670
90	19940624	0.036670
91	19940325	0.033330

1.6 KiB Raw Blame History

1.6 KiB

Raw Blame History