f/mmufx-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

7.1 KiB

Raw Blame History

1	Date	Dividends
2	2011-12-30	0.090000
3	2014-06-30	0.053000
4	2017-05-31	0.036000
5	1995-10-31	0.023000
6	1997-12-02	1.391000
7	2003-12-31	0.028000
8	2008-07-31	0.035000
9	2000-08-31	0.060000
10	2002-12-31	0.029000
11	2013-04-30	0.035000
12	2015-07-31	0.035000
13	2013-07-31	0.050000
14	2020-07-31	0.037000
15	2021-03-31	0.022000
16	2025-03-25	0.105000
17	1998-08-31	0.024000
18	1999-09-30	0.018000
19	2003-08-29	0.010000
20	2005-11-30	0.017000
21	2012-04-30	0.040000
22	1997-05-30	0.024000
23	2001-04-30	0.017000
24	2003-11-28	0.013000
25	2004-06-30	0.010000
26	1996-12-03	0.786000
27	2005-09-30	0.017000
28	2024-06-25	0.128000
29	2005-04-29	0.010000
30	1994-10-31	0.027000
31	1999-05-28	0.020000
32	2004-01-30	0.010000
33	2004-12-31	0.010000
34	2000-09-29	0.060000
35	2012-09-28	0.040000
36	2013-08-30	0.050000
37	2018-12-31	0.053000
38	2011-02-28	0.033000
39	2018-09-28	0.047000
40	1999-12-02	1.094000
41	2002-11-29	0.020000
42	2005-07-29	0.017000
43	2007-06-29	0.022000
44	2017-10-31	0.040000
45	2019-04-30	0.037000
46	2002-01-31	0.017000
47	2002-02-28	0.010000
48	2013-06-28	0.035000
49	2013-11-29	0.055000
50	2009-02-27	0.033000
51	2012-08-31	0.040000
52	2016-02-29	0.034000
53	2019-05-31	0.037000
54	1994-05-31	0.027000
55	1998-01-30	0.026000
56	1998-02-27	0.022000
57	2004-05-28	0.010000
58	2015-04-30	0.035000
59	2018-05-31	0.037000
60	2018-08-31	0.047000
61	1999-01-29	0.024000
62	2005-12-30	0.017000
63	2006-08-31	0.029000
64	2013-10-31	0.055000
65	1993-09-30	0.086000
66	1998-10-30	0.025000
67	2001-11-30	0.017000
68	2003-09-30	0.010000
69	2004-10-29	0.013000
70	2009-06-30	0.030000
71	2011-05-31	0.038000
72	2026-06-25	0.076000
73	1995-12-29	0.022000
74	1997-01-31	0.031000
75	1999-11-30	0.018000
76	2000-06-30	0.060000
77	2010-10-29	0.048000
78	2021-09-23	0.068000
79	2023-12-14	0.875000
80	1995-08-31	0.026000
81	1996-04-30	0.025000
82	2001-05-31	0.017000
83	2004-07-30	0.010000
84	2004-02-27	0.010000
85	2011-09-30	0.050000
86	1997-12-31	0.026000
87	2001-07-31	0.017000
88	2001-09-28	0.017000
89	2006-01-31	0.012000
90	2005-08-31	0.017000
91	2013-02-28	0.035000
92	2004-04-30	0.010000
93	2020-06-30	0.037000
94	1993-12-31	0.105000
95	1995-01-31	0.027000
96	1996-03-29	0.027000
97	2000-07-31	0.060000
98	1995-04-28	0.025000
99	1999-04-30	0.024000
100	2015-12-22	1.068000
101	2020-10-30	0.032000
102	2020-12-31	0.031000
103	1995-02-28	0.027000
104	1995-05-31	0.029000
105	1998-06-30	0.024000
106	2014-12-31	0.061000
107	2010-07-30	0.037000
108	2011-03-31	0.033000
109	2014-07-31	0.053000
110	2020-03-31	0.037000
111	1994-12-30	0.030000
112	2002-03-28	0.010000
113	2003-03-31	0.010000
114	2006-12-29	0.046000
115	2021-01-29	0.022000
116	2025-06-26	0.111000
117	2014-02-28	0.040000
118	2002-10-31	0.020000
119	2012-01-31	0.040000
120	2012-10-31	0.040000
121	2012-12-31	0.102000
122	1995-07-31	0.028000
123	2014-08-29	0.053000
124	2014-12-22	1.341000
125	2015-09-30	0.035000
126	2020-01-31	0.037000
127	2000-12-29	0.040000
128	2002-08-30	0.011000
129	2006-04-28	0.012000
130	2017-03-31	0.036000
131	1999-06-30	0.020000
132	1999-08-31	0.018000
133	2001-08-31	0.017000
134	2003-06-30	0.010000
135	1993-06-30	0.090000
136	1997-04-30	0.028000
137	1997-08-29	0.023000
138	1998-05-29	0.024000
139	2005-05-31	0.017000
140	2010-03-31	0.032000
141	2017-07-31	0.036000
142	2008-02-29	0.020000
143	2017-09-29	0.040000
144	2021-12-16	1.172000
145	2018-04-30	0.037000
146	2023-06-22	0.136000
147	2005-01-31	0.010000
148	2009-03-31	0.033000
149	2012-02-29	0.040000
150	2016-09-30	0.038000
151	1994-07-29	0.025000
152	1999-02-26	0.024000
153	2000-03-31	0.017000
154	2010-12-31	0.073000
155	2020-04-30	0.037000
156	1992-12-28	0.086000
157	1995-11-30	0.023000
158	2000-02-29	0.017000
159	2005-10-31	0.017000
160	1998-07-31	0.024000
161	1999-12-31	0.017000
162	2006-02-28	0.012000
163	2011-07-29	0.042000
164	1998-03-31	0.024000
165	2008-12-11	0.073000
166	2017-06-30	0.036000
167	2020-12-17	0.920000
168	1996-02-29	0.023000
169	1999-07-30	0.020000
170	2000-10-31	0.060000
171	2007-11-30	0.050000
172	2015-12-31	0.066000
173	2016-10-31	0.038000
174	2019-09-30	0.045000
175	2025-12-11	0.709000
176	1998-12-31	0.024000
177	2001-03-30	0.017000
178	2002-04-30	0.010000
179	2011-11-30	0.050000
180	2014-05-30	0.053000
181	2015-08-31	0.035000
182	2016-08-31	0.038000
183	1997-09-30	0.021000
184	2000-04-28	0.017000
185	2007-05-31	0.017000
186	2011-04-29	0.038000
187	2010-02-26	0.030000
188	2010-09-30	0.048000
189	2011-10-31	0.050000
190	2016-06-30	0.034000
191	1994-11-30	0.027000
192	1996-09-30	0.033000
193	1999-03-31	0.024000
194	2008-01-31	0.020000
195	2019-12-31	0.116000
196	2004-11-30	0.015000
197	2010-05-28	0.037000
198	2011-06-30	0.042000
199	2015-10-30	0.040000
200	1995-06-30	0.029000
201	2001-02-28	0.017000
202	2003-07-31	0.010000
203	2004-09-30	0.013000
204	2007-09-28	0.040000
205	2011-08-31	0.050000
206	2015-01-30	0.035000
207	2016-05-31	0.034000
208	1995-03-31	0.027000
209	1996-08-30	0.031000
210	1998-11-30	0.024000
211	2007-02-28	0.020000
212	2022-12-15	1.639000
213	2026-03-26	0.101000
214	1994-08-31	0.027000
215	2003-10-31	0.010000
216	2007-07-31	0.026000
217	2019-03-29	0.037000
218	1996-01-31	0.023000
219	2016-07-29	0.038000
220	2022-06-23	0.119000
221	2007-08-31	0.040000
222	2012-05-31	0.040000
223	2022-03-24	0.097000
224	2024-09-26	0.106000
225	1993-03-31	0.087000
226	1997-10-31	0.026000
227	2001-01-31	0.017000
228	2005-06-30	0.017000
229	1994-06-30	0.027000
230	2006-09-29	0.033000
231	2014-04-30	0.050000
232	2013-05-31	0.040000
233	2013-12-31	0.100000
234	2016-12-30	0.273000
235	2017-12-29	0.046000
236	1997-06-30	0.026000
237	2005-02-28	0.010000
238	2009-10-30	0.055000
239	2013-01-31	0.035000
240	2020-02-28	0.037000
241	2004-08-31	0.010000
242	2006-10-31	0.033000
243	2008-09-30	0.035000
244	2015-02-27	0.035000
245	2006-11-30	0.046000
246	2012-06-29	0.040000
247	2018-07-31	0.042000
248	2019-11-29	0.050000
249	2019-10-31	0.045000
250	1997-03-31	0.027000
251	2000-05-31	0.017000
252	2010-01-29	0.030000
253	2012-11-30	0.050000
254	2020-08-31	0.037000
255	1996-12-31	0.051000
256	2008-10-31	0.035000
257	2014-11-28	0.058000
258	2019-08-30	0.042000
259	2018-10-31	0.047000
260	2008-05-30	0.035000
261	2009-08-31	0.040000
262	2017-01-31	0.036000
263	2017-04-28	0.036000
264	2002-09-30	0.017000
265	2009-04-30	0.030000
266	2015-03-31	0.035000
267	2018-11-30	0.047000
268	1994-03-31	0.105000
269	1996-11-29	0.031000
270	1999-10-29	0.018000
271	2001-12-31	0.020000
272	2012-12-11	0.008000
273	2013-09-30	0.050000
274	2016-11-30	0.045000
275	2020-09-30	0.010000
276	2002-05-31	0.010000
277	2003-05-30	0.010000
278	2009-12-31	0.079000
279	2010-08-31	0.042000
280	2020-11-30	0.032000
281	2014-09-30	0.053000
282	2015-05-29	0.035000
283	2021-02-26	0.022000
284	2023-09-21	0.106000
285	2002-07-31	0.010000
286	2009-05-29	0.030000
287	2014-01-31	0.040000
288	2014-03-31	0.040000
289	2007-10-31	0.040000
290	2012-07-31	0.040000
291	2013-03-28	0.035000
292	2018-01-31	0.037000
293	1994-09-30	0.027000
294	1998-04-30	0.024000
295	2000-01-31	0.017000
296	2007-01-31	0.020000
297	2019-01-31	0.037000
298	2018-06-29	0.040000
299	1992-09-30	0.068000
300	2006-06-30	0.024000
301	2009-07-31	0.035000
302	2018-03-29	0.037000
303	2021-06-24	0.067000
304	2024-12-12	0.508000
305	2006-07-31	0.024000
306	2008-08-29	0.035000
307	2010-11-30	0.048000
308	2018-12-20	0.331000
309	2015-11-30	0.040000
310	2016-03-31	0.034000
311	2022-09-22	0.109000
312	1992-06-30	0.055000
313	2008-06-30	0.035000
314	2009-09-30	0.040000
315	2013-12-10	0.897000
316	2005-03-31	0.010000
317	2007-03-30	0.020000
318	2007-12-31	0.050000
319	2017-08-31	0.036000
320	1995-09-29	0.025000
321	1996-07-31	0.028000
322	1996-10-31	0.031000
323	1998-12-02	0.612000
324	2024-03-26	0.094000
325	2012-03-30	0.040000
326	1994-04-29	0.026000
327	1996-05-31	0.025000
328	1997-07-31	0.026000
329	2009-11-30	0.055000
330	2018-02-28	0.037000
331	2023-03-23	0.100000
332	2025-09-25	0.125000
333	2008-04-30	0.035000
334	2011-01-31	0.033000
335	2014-10-31	0.053000
336	2015-06-30	0.035000
337	2007-04-30	0.017000
338	2008-12-31	0.056000
339	2016-01-29	0.031000
340	2019-06-28	0.037000
341	2017-11-30	0.045000
342	1996-06-28	0.030000
343	2001-06-29	0.017000
344	2002-06-28	0.010000
345	2009-01-30	0.033000
346	2019-12-19	1.000000
347	2004-03-31	0.010000
348	2006-05-31	0.012000
349	2016-04-29	0.034000
350	2019-07-31	0.040000
351	2008-03-31	0.020000
352	2010-06-30	0.037000
353	2017-02-28	0.036000
354	2019-02-28	0.037000
355	1998-09-30	0.024000
356	2001-10-31	0.017000
357	2006-03-31	0.012000
358	2007-12-11	1.068000
359	2008-11-28	0.055000
360	2017-12-21	0.080000
361	2020-05-29	0.037000
362	1997-02-28	0.027000
363	1997-11-28	0.026000
364	2000-11-30	1.283000
365	2003-04-30	0.010000

7.1 KiB Raw Blame History

7.1 KiB

Raw Blame History