f/jfirx-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

3.6 KiB

Raw Blame History

1	Date	Dividends
2	2012-02-29	0.038000
3	2016-12-22	0.020000
4	2020-07-31	0.029000
5	2021-04-30	0.019000
6	2021-11-30	0.020000
7	2021-12-31	0.027000
8	2023-05-31	0.056000
9	2025-02-28	0.043000
10	2025-10-31	0.042000
11	2026-03-31	0.041000
12	2018-07-31	0.034000
13	2016-01-29	0.038000
14	2018-03-29	0.033000
15	2020-09-30	0.026000
16	2024-07-31	0.053000
17	2013-10-31	0.036000
18	2014-06-30	0.033000
19	2016-04-29	0.038000
20	2017-06-30	0.031000
21	2020-01-31	0.036000
22	2020-05-29	0.030000
23	2012-04-30	0.040000
24	2013-06-28	0.039000
25	2014-08-29	0.035000
26	2015-09-30	0.036000
27	2020-06-30	0.028000
28	2022-12-30	0.137000
29	2023-11-30	0.060000
30	2024-03-28	0.062000
31	2012-01-31	0.041000
32	2014-11-28	0.038000
33	2015-04-30	0.036000
34	2015-07-31	0.037000
35	2015-10-30	0.039000
36	2017-07-31	0.032000
37	2018-12-31	0.033000
38	2022-07-29	0.041000
39	2024-02-29	0.061000
40	2024-08-30	0.054000
41	2018-06-29	0.033000
42	2019-12-19	0.020000
43	2022-06-30	0.034000
44	2022-11-30	0.051000
45	2024-06-28	0.053000
46	2012-09-28	0.040000
47	2017-09-29	0.032000
48	2020-08-31	0.029000
49	2024-12-31	0.049000
50	2026-07-31	0.040000
51	2013-12-31	0.036000
52	2017-11-30	0.030000
53	2019-12-31	0.035000
54	2025-04-30	0.047000
55	2026-04-30	0.039000
56	2017-12-29	0.032000
57	2019-03-29	0.038000
58	2022-10-31	0.050000
59	2023-12-29	0.064000
60	2011-12-22	0.119000
61	2012-12-31	0.040000
62	2016-12-30	0.058000
63	2021-02-26	0.023000
64	2025-09-30	0.042000
65	2026-05-29	0.040000
66	2012-12-21	0.079000
67	2014-10-31	0.038000
68	2015-03-31	0.038000
69	2016-02-29	0.037000
70	2016-03-31	0.039000
71	2016-06-30	0.037000
72	2016-10-31	0.039000
73	2018-01-31	0.033000
74	2024-01-31	0.067000
75	2025-03-31	0.047000
76	2012-08-31	0.041000
77	2013-02-28	0.036000
78	2021-10-29	0.020000
79	2025-06-30	0.046000
80	2014-01-31	0.036000
81	2017-04-28	0.034000
82	2017-10-31	0.031000
83	2021-03-31	0.025000
84	2024-10-31	0.050000
85	2012-11-30	0.036000
86	2020-02-28	0.034000
87	2025-08-29	0.044000
88	2025-11-28	0.040000
89	2022-09-30	0.044000
90	2024-11-29	0.047000
91	2025-01-31	0.048000
92	2014-09-30	0.035000
93	2016-08-31	0.038000
94	2017-03-31	0.035000
95	2019-01-31	0.037000
96	2019-09-30	0.036000
97	2021-01-29	0.028000
98	2023-02-28	0.049000
99	2025-12-31	0.040000
100	2026-06-30	0.039000
101	2012-03-30	0.039000
102	2012-10-31	0.038000
103	2014-02-28	0.032000
104	2021-09-30	0.018000
105	2022-02-28	0.025000
106	2015-02-27	0.035000
107	2018-04-30	0.034000
108	2021-12-17	0.069000
109	2025-05-30	0.047000
110	2012-07-31	0.042000
111	2013-08-30	0.039000
112	2014-07-31	0.034000
113	2019-04-30	0.037000
114	2019-10-31	0.038000
115	2021-06-30	0.017000
116	2021-07-30	0.017000
117	2025-07-31	0.045000
118	2013-04-30	0.038000
119	2013-11-29	0.035000
120	2015-11-30	0.037000
121	2016-07-29	0.038000
122	2017-02-28	0.033000
123	2019-07-31	0.038000
124	2020-04-30	0.032000
125	2024-05-31	0.053000
126	2011-11-30	0.039000
127	2012-06-29	0.043000
128	2018-11-30	0.030000
129	2020-12-31	0.028000
130	2012-05-31	0.042000
131	2013-03-28	0.039000
132	2013-09-30	0.036000
133	2015-08-31	0.036000
134	2017-08-31	0.032000
135	2021-08-31	0.018000
136	2022-01-31	0.027000
137	2013-01-31	0.041000
138	2014-12-23	0.023000
139	2017-01-31	0.038000
140	2018-08-31	0.031000
141	2018-10-31	0.030000
142	2022-04-29	0.028000
143	2022-05-31	0.032000
144	2023-01-31	0.055000
145	2023-06-30	0.055000
146	2024-04-30	0.055000
147	2024-09-30	0.051000
148	2013-07-31	0.040000
149	2019-05-31	0.039000
150	2023-04-28	0.054000
151	2023-07-31	0.058000
152	2017-05-31	0.032000
153	2014-03-31	0.035000
154	2015-06-30	0.036000
155	2018-09-28	0.028000
156	2019-02-28	0.035000
157	2019-06-28	0.037000
158	2022-08-31	0.042000
159	2023-09-29	0.057000
160	2015-05-29	0.037000
161	2019-11-29	0.036000
162	2020-10-30	0.028000
163	2021-05-28	0.018000
164	2022-03-31	0.029000
165	2023-10-31	0.062000
166	2013-05-31	0.039000
167	2013-12-23	0.025000
168	2014-04-30	0.033000
169	2014-12-31	0.064000
170	2015-01-30	0.039000
171	2015-12-31	0.038000
172	2018-05-31	0.034000
173	2020-11-30	0.027000
174	2026-02-27	0.037000
175	2014-05-30	0.033000
176	2016-05-31	0.039000
177	2019-08-30	0.037000
178	2020-03-31	0.037000
179	2011-12-30	0.040000
180	2016-09-30	0.038000
181	2016-11-30	0.038000
182	2018-02-28	0.030000
183	2023-03-31	0.055000
184	2023-08-31	0.058000
185	2026-01-30	0.040000

3.6 KiB Raw Blame History

3.6 KiB

Raw Blame History