f/difax-dividend.csv at 19b33d5a18a5f2c124bf1e0a7de3acea9d711f4b

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

4.9 KiB

Raw Blame History

1	Date	Dividends
2	2025-10-31	0.065000
3	2007-08-31	0.040000
4	2013-06-28	0.029000
5	2014-12-22	0.153000
6	2016-04-29	0.036000
7	2007-07-31	0.040000
8	2021-12-31	0.082000
9	2008-04-30	0.038000
10	2009-01-30	0.035000
11	2010-02-26	0.035000
12	2016-12-30	0.032000
13	2018-05-31	0.032000
14	2025-08-29	0.060000
15	2008-05-14	0.013000
16	2018-12-31	0.032000
17	2020-11-30	0.030000
18	2022-01-31	0.029000
19	2015-12-22	0.277000
20	2026-07-31	0.047000
21	2017-07-31	0.030000
22	2017-12-21	0.060000
23	2025-04-30	0.048000
24	2026-03-31	0.055000
25	2006-06-30	0.037000
26	2014-04-30	0.028000
27	2014-08-29	0.028000
28	2016-03-31	0.034000
29	2009-12-31	0.038000
30	2021-05-28	0.030000
31	2023-12-29	0.036000
32	2008-05-30	0.038000
33	2010-10-29	0.035000
34	2014-11-28	0.030000
35	2015-02-27	0.030000
36	2008-06-30	0.038000
37	2020-12-31	0.030000
38	2010-07-30	0.035000
39	2014-07-31	0.028000
40	2025-01-31	0.050000
41	2013-05-31	0.057000
42	2016-05-31	0.036000
43	2016-09-30	0.036000
44	2018-04-30	0.032000
45	2023-05-31	0.036000
46	2006-10-31	0.036000
47	2011-06-30	0.031000
48	2015-10-30	0.034000
49	2021-02-26	0.030000
50	2011-03-31	0.033000
51	2016-06-30	0.036000
52	2020-01-31	0.028000
53	2022-12-30	0.034000
54	2008-03-31	0.038000
55	2016-02-29	0.034000
56	2019-04-30	0.032000
57	2022-06-30	0.030000
58	2020-08-31	0.028000
59	2022-05-31	0.030000
60	2024-09-30	0.048000
61	2007-09-28	0.040000
62	2009-07-31	0.040000
63	2011-02-28	0.033000
64	2013-02-28	0.029000
65	2008-07-31	0.039000
66	2008-11-28	0.044000
67	2019-06-28	0.032000
68	2023-02-28	0.034000
69	2008-02-29	0.038000
70	2008-09-30	0.041000
71	2023-01-31	0.034000
72	2012-10-31	0.031000
73	2018-01-31	0.036000
74	2018-08-31	0.034000
75	2020-10-30	0.028000
76	2009-11-30	0.040000
77	2017-04-28	0.030000
78	2023-03-31	0.034000
79	2012-06-29	0.031000
80	2013-03-28	0.029000
81	2020-07-31	0.059000
82	2025-06-30	0.052000
83	2011-11-30	0.031000
84	2011-12-30	0.031000
85	2026-01-30	0.060000
86	2016-08-31	0.036000
87	2017-11-30	0.036000
88	2009-06-30	0.040000
89	2011-01-31	0.033000
90	2011-04-29	0.033000
91	2024-11-29	0.053000
92	2006-11-30	0.038000
93	2018-07-31	0.093000
94	2024-06-28	0.042000
95	2019-02-28	0.032000
96	2019-11-29	0.028000
97	2025-02-28	0.048000
98	2026-04-30	0.055000
99	2007-02-28	0.040000
100	2010-11-30	0.035000
101	2014-05-30	0.114000
102	2017-12-29	0.042000
103	2011-08-31	0.031000
104	2023-04-28	0.036000
105	2024-03-28	0.036000
106	2024-05-31	0.040000
107	2022-03-31	0.029000
108	2010-04-30	0.047000
109	2010-08-31	0.035000
110	2014-09-30	0.028000
111	2017-05-31	0.030000
112	2014-03-31	0.028000
113	2015-05-29	0.030000
114	2021-12-16	0.257000
115	2007-04-30	0.040000
116	2009-05-29	0.040000
117	2012-05-31	0.031000
118	2012-08-31	0.031000
119	2009-02-27	0.034000
120	2010-12-31	0.060000
121	2022-07-29	0.157000
122	2006-08-31	0.037000
123	2018-02-28	0.034000
124	2019-08-30	0.030000
125	2026-02-27	0.055000
126	2015-01-30	0.030000
127	2019-01-31	0.032000
128	2019-05-31	0.032000
129	2021-06-30	0.030000
130	2007-11-30	0.106000
131	2008-08-29	0.039000
132	2010-09-30	0.035000
133	2012-11-30	0.031000
134	2022-10-31	0.032000
135	2025-03-31	0.048000
136	2007-12-31	0.046000
137	2008-01-31	0.038000
138	2018-06-29	0.032000
139	2020-05-29	0.028000
140	2016-07-29	0.039000
141	2017-02-28	0.030000
142	2022-08-31	0.031000
143	2025-12-31	0.065000
144	2009-10-30	0.040000
145	2011-09-30	0.031000
146	2012-03-30	0.031000
147	2012-12-31	0.031000
148	2023-11-30	0.036000
149	2006-09-29	0.035000
150	2009-04-30	0.040000
151	2016-01-29	0.034000
152	2016-11-30	0.034000
153	2023-07-31	0.036000
154	2013-04-30	0.029000
155	2014-02-28	0.028000
156	2014-12-31	0.045000
157	2019-10-31	0.028000
158	2010-01-29	0.035000
159	2011-10-31	0.031000
160	2015-09-30	0.034000
161	2025-07-31	0.055000
162	2020-06-30	0.028000
163	2021-04-30	0.030000
164	2021-07-30	0.040000
165	2021-10-29	0.029000
166	2009-09-30	0.040000
167	2013-11-29	0.028000
168	2015-06-30	0.030000
169	2018-09-28	0.034000
170	2013-10-31	0.027000
171	2025-09-30	0.065000
172	2024-12-31	0.053000
173	2010-06-30	0.035000
174	2012-02-29	0.031000
175	2015-11-30	0.034000
176	2024-02-29	0.036000
177	2020-03-31	0.028000
178	2022-09-30	0.031000
179	2009-08-31	0.040000
180	2013-08-30	0.027000
181	2015-08-31	0.034000
182	2017-10-31	0.034000
183	2014-01-31	0.028000
184	2021-01-29	0.030000
185	2022-04-29	0.029000
186	2024-01-31	0.036000
187	2026-06-30	0.049000
188	2007-01-31	0.040000
189	2007-06-29	0.040000
190	2012-04-30	0.031000
191	2016-10-31	0.034000
192	2022-02-28	0.029000
193	2026-05-29	0.053000
194	2011-07-29	0.031000
195	2012-07-31	0.031000
196	2012-12-06	0.009000
197	2017-03-31	0.030000
198	2015-12-31	0.037000
199	2018-03-29	0.032000
200	2007-05-31	0.071000
201	2012-09-28	0.031000
202	2018-11-30	0.034000
203	2021-09-30	0.029000
204	2015-07-31	0.159000
205	2017-09-29	0.032000
206	2019-09-30	0.030000
207	2021-03-31	0.030000
208	2024-10-31	0.050000
209	2014-06-30	0.028000
210	2017-08-31	0.030000
211	2018-10-31	0.034000
212	2024-08-30	0.046000
213	2006-07-31	0.038000
214	2008-10-31	0.041000
215	2017-06-30	0.030000
216	2019-03-29	0.032000
217	2023-09-29	0.036000
218	2024-04-30	0.037000
219	2006-12-21	0.003000
220	2012-01-31	0.031000
221	2020-09-30	0.028000
222	2023-06-30	0.036000
223	2006-12-29	0.049000
224	2020-02-28	0.028000
225	2025-11-28	0.065000
226	2022-11-30	0.034000
227	2020-04-30	0.028000
228	2009-03-31	0.034000
229	2010-05-28	0.035000
230	2013-01-31	0.029000
231	2013-09-30	0.027000
232	2013-07-31	0.029000
233	2014-10-31	0.028000
234	2019-12-31	0.041000
235	2025-05-30	0.052000
236	2013-12-10	0.144000
237	2024-07-31	0.044000
238	2018-12-20	0.017000
239	2021-11-30	0.029000
240	2023-10-31	0.036000
241	2010-03-31	0.035000
242	2011-05-31	0.033000
243	2013-12-31	0.036000
244	2015-03-31	0.030000
245	2007-03-30	0.040000
246	2017-01-31	0.030000
247	2019-07-31	0.034000
248	2021-08-31	0.029000
249	2015-04-30	0.030000
250	2007-10-31	0.040000
251	2008-12-31	0.062000
252	2023-08-31	0.036000

4.9 KiB Raw Blame History

4.9 KiB

Raw Blame History