f/nbh-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

5.6 KiB

Raw Blame History

1	Date	Dividends
2	2008-01-29	0.054000
3	2017-03-29	0.068000
4	2018-02-27	0.068000
5	2018-08-30	0.062000
6	2025-10-31	0.054000
7	2025-03-31	0.054000
8	2005-11-22	0.066000
9	2008-10-29	0.054000
10	2012-08-29	0.070000
11	2014-07-29	0.070000
12	2015-05-27	0.075000
13	2020-11-27	0.062000
14	2024-11-29	0.054000
15	2003-11-25	0.066000
16	2005-10-25	0.066000
17	2013-02-26	0.070000
18	2014-01-29	0.070000
19	2015-12-29	0.075000
20	2020-05-28	0.062000
21	2005-05-24	0.066000
22	2011-04-27	0.070000
23	2012-04-26	0.070000
24	2014-05-28	0.070000
25	2020-08-28	0.062000
26	2021-09-29	0.062000
27	2024-04-29	0.038000
28	2025-01-31	0.054000
29	2025-07-31	0.054000
30	2015-08-27	0.075000
31	2025-04-30	0.054000
32	2006-11-28	0.056000
33	2018-01-30	0.068000
34	2022-06-29	0.050000
35	2023-01-30	0.050000
36	2017-09-28	0.068000
37	2024-06-28	0.038000
38	2003-01-23	0.066000
39	2008-02-27	0.054000
40	2011-12-28	0.070000
41	2014-06-26	0.070000
42	2014-09-26	0.070000
43	2015-09-28	0.075000
44	2009-05-26	0.054000
45	2009-10-28	0.060000
46	2017-04-26	0.068000
47	2004-12-22	0.066000
48	2008-11-25	0.054000
49	2013-08-28	0.070000
50	2002-11-14	0.066000
51	2006-09-21	0.062000
52	2009-01-28	0.054000
53	2009-09-28	0.060000
54	2010-10-27	0.070000
55	2010-12-29	0.070000
56	2022-11-29	0.050000
57	2023-02-27	0.038000
58	2003-07-23	0.066000
59	2007-12-27	0.054000
60	2010-03-29	0.070000
61	2017-02-24	0.068000
62	2019-04-29	0.062000
63	2020-03-30	0.062000
64	2022-09-29	0.050000
65	2006-03-23	0.062000
66	2009-03-27	0.054000
67	2022-04-28	0.050000
68	2002-12-23	0.066000
69	2005-08-23	0.066000
70	2006-02-23	0.062000
71	2010-07-28	0.070000
72	2021-05-27	0.062000
73	2024-02-28	0.038000
74	2015-03-27	0.075000
75	2015-04-28	0.075000
76	2015-11-25	0.075000
77	2018-11-29	0.062000
78	2019-06-27	0.062000
79	2019-10-30	0.062000
80	2024-12-31	0.054000
81	2009-11-25	0.060000
82	2024-05-31	0.038000
83	2008-04-28	0.054000
84	2010-08-27	0.070000
85	2004-04-22	0.066000
86	2011-05-26	0.070000
87	2014-10-29	0.075000
88	2007-11-28	0.054000
89	2015-06-26	0.075000
90	2017-08-29	0.068000
91	2021-12-30	0.062000
92	2025-08-29	0.054000
93	2026-05-29	0.054000
94	2008-12-29	0.054000
95	2011-09-28	0.070000
96	2012-05-29	0.070000
97	2018-10-30	0.062000
98	2022-10-28	0.050000
99	2022-12-29	0.050000
100	2026-04-30	0.054000
101	2003-09-23	0.066000
102	2003-12-23	0.066000
103	2006-07-25	0.062000
104	2007-07-27	0.056000
105	2021-03-30	0.062000
106	2023-06-29	0.038000
107	2004-02-25	0.066000
108	2012-01-27	0.070000
109	2020-06-29	0.062000
110	2022-08-30	0.050000
111	2004-10-21	0.066000
112	2007-09-26	0.054000
113	2010-11-26	0.070000
114	2011-02-24	0.070000
115	2017-10-30	0.068000
116	2006-12-27	0.056000
117	2014-12-29	0.075000
118	2016-07-27	0.075000
119	2017-11-29	0.068000
120	2019-11-27	0.062000
121	2021-04-29	0.062000
122	2024-10-31	0.054000
123	2006-06-22	0.062000
124	2012-02-27	0.070000
125	2016-02-25	0.075000
126	2016-05-26	0.075000
127	2022-07-28	0.050000
128	2023-12-28	0.038000
129	2003-08-21	0.066000
130	2016-04-27	0.075000
131	2012-09-26	0.070000
132	2016-08-29	0.075000
133	2026-06-30	0.054000
134	2004-08-24	0.066000
135	2007-01-29	0.056000
136	2016-06-28	0.075000
137	2018-07-30	0.062000
138	2019-01-30	0.062000
139	2020-09-29	0.062000
140	2004-09-23	0.066000
141	2007-03-28	0.056000
142	2008-03-27	0.054000
143	2008-05-28	0.054000
144	2011-10-27	0.070000
145	2008-06-26	0.054000
146	2011-03-29	0.070000
147	2021-02-25	0.062000
148	2021-10-28	0.062000
149	2024-08-30	0.054000
150	2003-04-23	0.066000
151	2013-05-29	0.070000
152	2013-09-26	0.070000
153	2014-02-26	0.070000
154	2003-05-22	0.066000
155	2016-01-27	0.075000
156	2017-01-27	0.075000
157	2022-05-27	0.050000
158	2008-08-27	0.054000
159	2011-07-27	0.070000
160	2014-08-27	0.070000
161	2026-07-31	0.054000
162	2007-04-26	0.056000
163	2009-08-27	0.060000
164	2016-09-28	0.075000
165	2026-02-27	0.054000
166	2021-06-29	0.062000
167	2003-06-24	0.066000
168	2008-09-26	0.054000
169	2021-07-29	0.062000
170	2022-01-28	0.062000
171	2004-11-23	0.066000
172	2006-01-25	0.062000
173	2021-08-30	0.062000
174	2005-04-21	0.066000
175	2010-06-28	0.070000
176	2011-01-27	0.070000
177	2012-03-28	0.070000
178	2016-10-27	0.075000
179	2007-08-29	0.054000
180	2010-09-28	0.070000
181	2014-11-25	0.075000
182	2003-03-25	0.066000
183	2012-07-27	0.070000
184	2013-12-27	0.070000
185	2018-04-27	0.062000
186	2023-07-28	0.038000
187	2004-06-23	0.066000
188	2009-07-29	0.060000
189	2012-12-27	0.070000
190	2020-01-30	0.062000
191	2020-12-30	0.062000
192	2018-12-28	0.062000
193	2004-03-23	0.066000
194	2004-05-25	0.066000
195	2009-02-25	0.054000
196	2011-06-28	0.070000
197	2013-06-26	0.070000
198	2018-09-27	0.062000
199	2007-10-29	0.054000
200	2017-06-28	0.068000
201	2023-05-30	0.038000
202	2023-10-30	0.038000
203	2025-02-28	0.054000
204	2026-03-31	0.054000
205	2005-07-21	0.066000
206	2010-01-27	0.070000
207	2019-12-30	0.062000
208	2013-04-26	0.070000
209	2017-12-28	0.068000
210	2005-03-23	0.066000
211	2007-05-29	0.056000
212	2009-04-28	0.054000
213	2011-11-28	0.070000
214	2016-03-29	0.075000
215	2021-01-28	0.062000
216	2025-05-30	0.054000
217	2003-02-26	0.066000
218	2006-04-25	0.062000
219	2012-06-27	0.070000
220	2015-10-28	0.075000
221	2016-12-28	0.075000
222	2019-03-28	0.062000
223	2006-08-23	0.062000
224	2015-07-29	0.075000
225	2018-05-30	0.062000
226	2020-10-29	0.062000
227	2005-01-26	0.066000
228	2006-10-24	0.062000
229	2008-07-29	0.054000
230	2017-07-27	0.068000
231	2003-10-23	0.066000
232	2004-01-22	0.066000
233	2009-06-26	0.054000
234	2013-11-26	0.070000
235	2019-02-27	0.062000
236	2022-03-30	0.062000
237	2004-07-22	0.066000
238	2013-01-29	0.070000
239	2018-03-28	0.068000
240	2009-12-29	0.070000
241	2014-03-27	0.070000
242	2023-11-29	0.038000
243	2024-07-31	0.054000
244	2025-11-28	0.054000
245	2006-05-23	0.062000
246	2015-01-28	0.075000
247	2017-05-26	0.068000
248	2019-09-27	0.062000
249	2024-09-30	0.054000
250	2007-02-26	0.056000
251	2010-04-28	0.070000
252	2013-07-29	0.070000
253	2019-05-30	0.062000
254	2019-07-30	0.062000
255	2019-08-29	0.062000
256	2023-03-30	0.038000
257	2024-03-27	0.038000
258	2007-06-27	0.056000
259	2011-08-29	0.070000
260	2012-11-28	0.070000
261	2016-11-28	0.075000
262	2020-04-29	0.062000
263	2020-07-30	0.062000
264	2025-09-30	0.054000
265	2005-09-22	0.066000
266	2014-04-28	0.070000
267	2015-02-25	0.075000
268	2018-06-28	0.062000
269	2023-04-27	0.038000
270	2024-01-30	0.038000
271	2005-06-23	0.066000
272	2005-12-22	0.066000
273	2010-02-24	0.070000
274	2010-05-26	0.070000
275	2021-11-29	0.062000
276	2025-12-31	0.054000
277	2005-02-23	0.066000
278	2022-02-25	0.062000
279	2023-08-30	0.038000
280	2013-03-26	0.070000
281	2013-10-29	0.070000
282	2020-02-27	0.062000
283	2023-09-28	0.038000
284	2025-06-30	0.054000
285	2026-01-30	0.054000

5.6 KiB Raw Blame History

5.6 KiB

Raw Blame History