f/augax-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

5.8 KiB

Raw Blame History

1	Date	Dividends
2	2011-03-31	0.056000
3	2007-11-23	0.080000
4	2010-02-26	0.072000
5	2013-02-28	0.028000
6	2024-10-31	0.058000
7	2007-10-26	0.080000
8	2009-06-24	0.064000
9	2022-01-31	0.028000
10	2023-08-31	0.053000
11	2003-03-24	0.052000
12	2018-06-29	0.040000
13	2025-12-31	0.073000
14	2009-04-24	0.068000
15	2016-09-30	0.036000
16	2010-05-28	0.072000
17	2011-02-28	0.056000
18	2014-02-28	0.052000
19	2017-11-30	0.060000
20	2023-10-31	0.058000
21	2003-04-24	0.052000
22	2005-02-24	0.064000
23	2012-07-31	0.044000
24	2018-05-31	0.044000
25	2019-10-31	0.044000
26	2020-04-30	0.044000
27	2024-07-31	0.057000
28	2003-10-23	0.044000
29	2009-12-17	0.120000
30	2022-04-29	0.030000
31	2022-08-31	0.045000
32	2012-01-31	0.060000
33	2018-08-31	0.036000
34	2015-07-31	0.048000
35	2025-03-31	0.053000
36	2004-02-25	0.064000
37	2007-01-23	0.076000
38	2011-12-30	0.064000
39	2012-06-29	0.044000
40	2003-07-24	0.052000
41	2007-02-23	0.068000
42	2014-07-31	0.048000
43	2015-09-30	0.048000
44	2004-12-22	0.080000
45	2013-04-30	0.028000
46	2014-10-31	0.040000
47	2019-12-31	0.040000
48	2020-10-30	0.057000
49	2009-03-25	0.072000
50	2014-01-31	0.052000
51	2008-05-28	0.064000
52	2008-08-27	0.076000
53	2004-06-25	0.056000
54	2007-05-24	0.072000
55	2020-12-01	0.266000
56	2004-05-26	0.056000
57	2018-03-29	0.048000
58	2006-04-26	0.068000
59	2006-12-18	0.076000
60	2020-08-31	0.052000
61	2021-04-30	0.044000
62	2021-07-30	0.038000
63	2002-05-24	0.040000
64	2004-07-26	0.052000
65	2013-12-31	0.096000
66	2018-02-28	0.056000
67	2007-06-22	0.076000
68	2010-12-31	0.148000
69	2021-12-31	0.030000
70	2024-09-30	0.058000
71	2025-10-31	0.069000
72	2017-04-28	0.040000
73	2019-02-28	0.052000
74	2012-03-30	0.048000
75	2012-08-31	0.044000
76	2014-08-29	0.044000
77	2015-10-30	0.048000
78	2022-03-31	0.030000
79	2004-11-24	0.068000
80	2008-03-27	0.068000
81	2007-06-25	0.076000
82	2010-09-30	0.068000
83	2025-09-30	0.068000
84	2005-01-27	0.064000
85	2006-05-25	0.072000
86	2013-06-28	0.028000
87	2014-09-30	0.040000
88	2018-01-31	0.060000
89	2019-04-30	0.056000
90	2020-01-31	0.040000
91	2021-01-29	0.057000
92	2005-08-29	0.064000
93	2007-10-25	0.080000
94	2025-02-28	0.052000
95	2007-04-25	0.068000
96	2007-11-26	0.080000
97	2021-10-29	0.031000
98	2022-06-30	0.035000
99	2023-03-31	0.048000
100	2023-05-31	0.047000
101	2015-01-30	0.044000
102	2020-09-30	0.056000
103	2019-11-29	0.040000
104	2021-11-30	0.030000
105	2024-12-31	0.054000
106	2026-05-29	0.053000
107	2017-02-28	0.036000
108	2019-07-31	0.056000
109	2007-08-23	0.076000
110	2009-07-24	0.068000
111	2019-06-28	0.056000
112	2025-11-28	0.065000
113	2006-02-27	0.068000
114	2006-03-27	0.064000
115	2023-12-29	0.070000
116	2026-03-31	0.055000
117	2013-12-03	0.064000
118	2017-03-31	0.040000
119	2009-05-26	0.064000
120	2022-11-30	0.054000
121	2018-12-31	0.060000
122	2020-05-29	0.044000
123	2010-10-29	0.072000
124	2016-02-29	0.040000
125	2021-05-28	0.040000
126	2018-04-30	0.044000
127	2019-01-31	0.048000
128	2017-09-29	0.052000
129	2013-03-28	0.028000
130	2016-03-31	0.040000
131	2010-06-30	0.068000
132	2023-01-31	0.053000
133	2023-09-29	0.057000
134	2025-01-31	0.053000
135	2012-04-30	0.048000
136	2019-03-29	0.052000
137	2020-03-31	0.044000
138	2021-03-31	0.048000
139	2023-04-28	0.045000
140	2004-01-26	0.056000
141	2014-11-28	0.040000
142	2005-10-27	0.064000
143	2007-05-25	0.072000
144	2009-09-24	0.076000
145	2011-05-31	0.056000
146	2017-06-30	0.048000
147	2017-12-29	0.060000
148	2003-09-22	0.044000
149	2004-08-25	0.052000
150	2021-09-30	0.032000
151	2025-07-31	0.067000
152	2010-07-30	0.068000
153	2013-01-31	0.036000
154	2005-07-28	0.072000
155	2008-01-28	0.080000
156	2005-11-29	0.060000
157	2007-07-24	0.076000
158	2008-09-25	0.072000
159	2016-01-29	0.044000
160	2016-06-30	0.036000
161	2016-08-31	0.036000
162	2003-06-23	0.056000
163	2005-06-29	0.072000
164	2023-02-28	0.051000
165	2016-11-30	0.140000
166	2017-05-31	0.044000
167	2012-10-31	0.060000
168	2024-05-31	0.058000
169	2024-06-28	0.057000
170	2006-11-27	0.076000
171	2012-09-28	0.040000
172	2013-09-30	0.084000
173	2015-03-31	0.052000
174	2016-12-30	0.036000
175	2018-07-31	0.036000
176	2023-07-31	0.051000
177	2005-05-26	0.080000
178	2008-12-17	0.236000
179	2011-07-29	0.060000
180	2014-05-30	0.052000
181	2004-04-26	0.068000
182	2011-01-31	0.044000
183	2026-07-31	0.055000
184	2020-12-31	0.120000
185	2026-06-30	0.055000
186	2008-10-27	0.076000
187	2011-09-30	0.056000
188	2021-02-26	0.052000
189	2024-02-29	0.060000
190	2002-04-26	0.036000
191	2005-03-30	0.072000
192	2003-12-22	0.088000
193	2005-09-29	0.064000
194	2015-02-27	0.048000
195	2019-09-30	0.048000
196	2022-12-30	0.090000
197	2025-04-30	0.056000
198	2008-07-28	0.072000
199	2011-08-31	0.060000
200	2007-09-21	0.080000
201	2019-08-30	0.052000
202	2020-11-30	0.061000
203	2002-02-26	0.024000
204	2006-08-28	0.084000
205	2012-12-31	0.140000
206	2018-10-31	0.036000
207	2021-08-31	0.035000
208	2023-11-30	0.062000
209	2004-09-24	0.056000
210	2011-06-30	0.056000
211	2013-08-30	0.036000
212	2015-08-31	0.048000
213	2024-11-29	0.053000
214	2006-01-26	0.060000
215	2007-04-24	0.068000
216	2002-03-26	0.036000
217	2011-04-29	0.060000
218	2014-06-30	0.048000
219	2005-04-28	0.080000
220	2006-10-26	0.076000
221	2007-03-26	0.072000
222	2014-04-30	0.052000
223	2022-10-31	0.050000
224	2025-05-30	0.060000
225	2003-11-21	0.044000
226	2006-06-26	0.076000
227	2008-11-25	0.076000
228	2009-08-24	0.068000
229	2010-11-30	0.072000
230	2016-07-29	0.036000
231	2006-07-26	0.084000
232	2007-08-24	0.076000
233	2016-04-29	0.040000
234	2019-05-31	0.056000
235	2022-09-30	0.048000
236	2026-01-30	0.062000
237	2006-09-25	0.080000
238	2015-04-30	0.052000
239	2009-01-23	0.068000
240	2009-10-26	0.076000
241	2017-08-31	0.048000
242	2022-07-29	0.038000
243	2024-01-31	0.060000
244	2003-08-22	0.044000
245	2004-03-26	0.072000
246	2010-03-31	0.076000
247	2010-08-31	0.068000
248	2014-03-31	0.056000
249	2004-10-25	0.060000
250	2007-07-25	0.076000
251	2015-12-31	0.044000
252	2020-06-30	0.048000
253	2020-07-31	0.048000
254	2025-08-29	0.068000
255	2007-12-17	0.080000
256	2008-06-26	0.072000
257	2014-12-31	0.044000
258	2017-10-31	0.056000
259	2009-11-24	0.076000
260	2016-10-31	0.036000
261	2024-03-28	0.057000
262	2012-11-30	0.504000
263	2017-01-31	0.036000
264	2024-08-30	0.058000
265	2007-09-24	0.080000
266	2022-05-31	0.032000
267	2017-07-31	0.048000
268	2023-06-30	0.049000
269	2011-10-31	0.056000
270	2012-02-29	0.048000
271	2015-05-29	0.052000
272	2003-05-23	0.060000
273	2005-12-22	0.092000
274	2025-06-30	0.062000
275	2010-01-29	0.072000
276	2013-05-31	0.028000
277	2026-02-27	0.057000
278	2013-10-31	0.088000
279	2021-06-30	0.038000
280	2008-02-27	0.072000
281	2009-02-23	0.064000
282	2011-11-30	0.132000
283	2018-09-28	0.036000
284	2018-11-30	0.036000
285	2026-04-30	0.055000
286	2008-04-28	0.068000
287	2009-12-31	0.128000
288	2013-11-29	0.088000
289	2015-06-30	0.052000
290	2015-11-30	0.112000
291	2016-05-31	0.040000
292	2020-02-28	0.040000
293	2022-02-28	0.029000
294	2012-05-31	0.048000
295	2013-07-31	0.032000
296	2024-04-30	0.057000

5.8 KiB Raw Blame History

5.8 KiB

Raw Blame History