f/dhmbx-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

5.1 KiB

Raw Blame History

1	Date	Dividends
2	2011-02-28	0.046000
3	2015-08-31	0.043000
4	2025-05-30	0.038000
5	2005-09-30	0.001000
6	2022-12-30	0.034000
7	2007-01-31	0.058000
8	2008-05-30	0.055000
9	2014-01-31	0.048000
10	2018-02-28	0.037000
11	2018-07-31	0.043000
12	2011-05-31	0.047000
13	2012-03-30	0.042000
14	2012-05-31	0.042000
15	2014-06-30	0.045000
16	2016-01-29	0.049000
17	2024-11-29	0.037000
18	2007-02-28	0.048000
19	2007-08-31	0.052000
20	2010-02-26	0.048000
21	2015-03-31	0.045000
22	2018-08-31	0.041000
23	2021-05-28	0.031000
24	2022-08-31	0.034000
25	2025-06-30	0.034000
26	2008-07-31	0.059000
27	2008-12-31	0.062000
28	2009-08-31	0.054000
29	2020-08-31	0.038000
30	2023-07-31	0.034000
31	2023-11-30	0.034000
32	2024-09-30	0.032000
33	2008-08-29	0.055000
34	2026-03-31	0.035000
35	2009-12-31	0.053000
36	2016-08-31	0.061000
37	2017-02-28	0.036000
38	2022-03-31	0.031000
39	2022-11-30	0.034000
40	2023-08-31	0.035000
41	2024-02-29	0.034000
42	2010-08-31	0.051000
43	2022-01-31	0.031000
44	2023-04-28	0.030000
45	2010-05-28	0.052000
46	2026-06-30	0.038000
47	2024-10-31	0.036000
48	2007-05-31	0.052000
49	2013-10-31	0.048000
50	2020-02-28	0.033000
51	2025-02-28	0.034000
52	2011-12-08	0.017000
53	2016-10-31	0.039000
54	2017-09-29	0.038000
55	2020-12-31	0.038000
56	2008-01-31	0.054000
57	2008-09-30	0.060000
58	2009-01-30	0.054000
59	2013-11-29	0.046000
60	2014-11-28	0.039000
61	2026-04-30	0.036000
62	2016-03-31	0.051000
63	2019-03-29	0.039000
64	2022-05-31	0.036000
65	2022-06-30	0.032000
66	2005-11-30	0.049000
67	2013-04-30	0.043000
68	2017-03-31	0.040000
69	2017-05-31	0.042000
70	2020-01-31	0.037000
71	2020-11-30	0.037000
72	2021-04-30	0.034000
73	2011-09-30	0.045000
74	2013-05-31	0.044000
75	2017-01-31	0.042000
76	2019-10-31	0.038000
77	2021-03-31	0.040000
78	2014-02-28	0.042000
79	2015-10-30	0.049000
80	2015-11-30	0.053000
81	2025-04-30	0.034000
82	2008-02-29	0.053000
83	2012-08-31	0.041000
84	2013-03-28	0.043000
85	2026-02-27	0.033000
86	2012-07-31	0.042000
87	2015-07-31	0.043000
88	2017-07-31	0.040000
89	2024-06-28	0.032000
90	2024-08-30	0.038000
91	2011-12-30	0.046000
92	2016-06-30	0.048000
93	2024-01-31	0.036000
94	2006-02-28	0.046000
95	2013-08-30	0.047000
96	2019-02-28	0.036000
97	2009-04-30	0.054000
98	2012-10-31	0.036000
99	2006-03-31	0.052000
100	2011-10-31	0.047000
101	2017-10-31	0.041000
102	2021-06-30	0.034000
103	2025-11-28	0.033000
104	2009-03-31	0.057000
105	2010-12-09	0.010000
106	2012-01-31	0.045000
107	2017-06-30	0.039000
108	2018-01-31	0.043000
109	2026-05-29	0.038000
110	2006-08-31	0.052000
111	2007-03-30	0.051000
112	2011-03-31	0.050000
113	2013-07-31	0.047000
114	2021-07-30	0.031000
115	2021-10-29	0.029000
116	2023-10-31	0.037000
117	2025-09-30	0.034000
118	2011-01-31	0.054000
119	2014-03-31	0.046000
120	2025-03-31	0.033000
121	2008-06-30	0.057000
122	2011-06-30	0.045000
123	2024-07-31	0.036000
124	2019-04-30	0.044000
125	2018-03-29	0.038000
126	2008-11-28	0.051000
127	2012-06-29	0.041000
128	2019-01-31	0.041000
129	2020-06-30	0.039000
130	2022-02-28	0.028000
131	2015-09-30	0.041000
132	2019-07-31	0.041000
133	2026-01-30	0.037000
134	2011-04-29	0.048000
135	2018-09-28	0.037000
136	2018-10-31	0.044000
137	2018-12-31	0.042000
138	2019-06-28	0.035000
139	2020-09-30	0.037000
140	2023-06-30	0.034000
141	2014-10-31	0.043000
142	2015-02-27	0.039000
143	2020-04-30	0.035000
144	2021-12-31	0.031000
145	2023-05-31	0.037000
146	2016-12-30	0.038000
147	2025-07-31	0.037000
148	2006-06-30	0.051000
149	2009-07-31	0.055000
150	2010-03-31	0.051000
151	2019-08-30	0.036000
152	2012-12-31	0.043000
153	2017-08-31	0.040000
154	2021-01-29	0.036000
155	2022-10-31	0.034000
156	2014-04-30	0.046000
157	2006-12-29	0.051000
158	2009-02-27	0.050000
159	2010-12-31	0.053000
160	2014-08-29	0.043000
161	2016-04-29	0.048000
162	2022-04-29	0.031000
163	2022-07-29	0.032000
164	2008-04-30	0.057000
165	2020-10-30	0.037000
166	2021-09-30	0.030000
167	2025-08-29	0.038000
168	2014-05-30	0.046000
169	2018-12-28	0.008000
170	2011-07-29	0.047000
171	2014-12-31	0.046000
172	2021-02-26	0.033000
173	2007-07-31	0.053000
174	2008-03-31	0.060000
175	2011-08-31	0.047000
176	2015-12-23	0.056000
177	2016-05-31	0.052000
178	2018-11-30	0.040000
179	2006-11-30	0.052000
180	2010-01-29	0.053000
181	2013-09-30	0.046000
182	2016-02-29	0.052000
183	2021-08-31	0.032000
184	2024-03-28	0.036000
185	2025-10-31	0.039000
186	2010-10-29	0.052000
187	2014-07-31	0.044000
188	2017-04-28	0.034000
189	2017-11-30	0.038000
190	2007-10-31	0.056000
191	2015-06-30	0.044000
192	2006-10-31	0.057000
193	2013-02-28	0.038000
194	2013-12-19	0.011000
195	2021-11-30	0.032000
196	2023-12-29	0.037000
197	2006-01-31	0.053000
198	2006-09-29	0.051000
199	2009-05-29	0.050000
200	2016-11-30	0.038000
201	2023-01-31	0.036000
202	2024-05-31	0.037000
203	2007-09-28	0.048000
204	2007-11-30	0.051000
205	2012-02-29	0.040000
206	2018-05-31	0.044000
207	2018-06-29	0.040000
208	2019-09-30	0.038000
209	2020-03-31	0.036000
210	2016-12-29	0.009000
211	2020-05-29	0.037000
212	2006-04-28	0.047000
213	2009-11-30	0.053000
214	2013-01-31	0.042000
215	2015-05-29	0.040000
216	2024-04-30	0.034000
217	2009-10-30	0.053000
218	2012-04-30	0.040000
219	2013-06-28	0.044000
220	2013-12-31	0.048000
221	2015-01-30	0.042000
222	2019-11-29	0.035000
223	2020-07-31	0.037000
224	2007-12-31	0.053000
225	2010-07-30	0.052000
226	2016-07-29	0.046000
227	2007-04-30	0.052000
228	2010-09-30	0.049000
229	2022-09-30	0.032000
230	2026-07-31	0.041000
231	2023-09-29	0.033000
232	2009-06-30	0.057000
233	2015-04-30	0.042000
234	2015-12-31	0.052000
235	2016-09-30	0.036000
236	2017-12-28	0.060000
237	2018-04-30	0.044000
238	2019-12-31	0.038000
239	2024-12-31	0.037000
240	2025-12-31	0.038000
241	2006-12-15	0.038000
242	2010-06-30	0.050000
243	2012-09-28	0.040000
244	2012-11-30	0.041000
245	2025-01-31	0.039000
246	2023-03-31	0.034000
247	2005-12-30	0.049000
248	2006-05-31	0.056000
249	2007-06-29	0.049000
250	2009-09-30	0.052000
251	2010-11-30	0.051000
252	2014-09-30	0.041000
253	2019-05-31	0.042000
254	2008-10-31	0.056000
255	2012-12-13	0.003000
256	2023-02-28	0.031000
257	2005-10-31	0.043000
258	2006-07-31	0.052000
259	2011-11-30	0.045000
260	2014-12-18	0.010000

5.1 KiB Raw Blame History

5.1 KiB

Raw Blame History