f/drevx-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

3.7 KiB

Raw Blame History

1	Date	Dividends
2	2003-06-30	0.018000
3	1980-10-15	0.070000
4	2004-03-31	0.040000
5	2008-09-30	0.034000
6	2011-06-30	0.028000
7	2012-03-30	0.020000
8	2026-06-30	0.013000
9	1990-12-20	0.510000
10	1986-01-31	2.130000
11	1990-03-21	0.070000
12	1990-09-21	0.070000
13	1993-03-24	0.070000
14	1998-06-30	0.025000
15	2000-03-31	0.010000
16	2015-12-23	1.042000
17	1983-04-25	0.070000
18	2022-06-30	0.015000
19	2020-09-30	0.018000
20	1986-12-17	0.950000
21	2004-06-30	0.040000
22	2005-09-30	0.025000
23	2012-12-21	0.046000
24	2023-06-30	0.015000
25	1986-07-25	0.070000
26	1984-10-23	0.070000
27	1993-09-22	0.055000
28	2024-03-28	0.177000
29	1984-01-24	0.535000
30	2020-03-31	0.095000
31	1993-06-23	0.230000
32	1997-12-26	1.745000
33	2007-12-18	0.667000
34	2014-09-30	0.019000
35	2018-03-29	0.117000
36	2021-03-31	0.370000
37	1988-03-28	0.182000
38	1988-12-27	0.295000
39	1996-06-28	0.085000
40	2006-03-31	0.033000
41	2010-12-20	0.026000
42	2012-09-28	0.030000
43	2013-03-28	0.086000
44	2016-12-22	0.837000
45	1985-04-24	0.070000
46	2017-03-31	0.406000
47	1995-12-27	3.905000
48	2011-12-22	0.028000
49	2018-06-29	0.026000
50	1984-04-16	0.070000
51	1994-06-28	0.100000
52	1990-06-25	0.225000
53	2005-12-19	0.433000
54	2006-06-30	0.185000
55	2010-03-31	0.015000
56	2011-09-30	0.023000
57	2014-12-22	1.166000
58	2023-12-15	0.788000
59	1983-07-19	0.070000
60	1987-04-22	0.070000
61	1987-10-21	0.070000
62	2003-09-30	0.021000
63	2015-06-30	0.018000
64	2018-12-19	0.774000
65	1986-10-22	0.070000
66	1992-09-25	0.070000
67	2000-12-15	0.020000
68	2001-06-29	0.031000
69	2003-03-31	0.017000
70	2019-03-29	0.200000
71	2022-09-30	0.015000
72	1981-10-15	0.070000
73	1991-03-22	0.070000
74	1994-12-20	0.400000
75	1996-09-30	0.020000
76	1999-09-30	0.015000
77	2009-06-30	0.024000
78	2019-06-28	0.030000
79	1981-04-20	0.070000
80	2005-06-30	0.028000
81	2012-06-29	0.026000
82	2022-12-19	0.454000
83	2024-06-28	0.012000
84	1998-09-30	0.025000
85	1995-03-22	0.055000
86	2020-12-18	0.793000
87	2024-12-19	1.494000
88	2026-03-31	0.165000
89	1986-04-22	0.070000
90	1985-07-24	0.070000
91	1985-10-23	0.070000
92	1992-06-24	0.070000
93	2004-09-30	0.025000
94	2016-06-30	0.027000
95	1981-01-23	0.400000
96	1996-03-29	0.025000
97	2004-12-17	0.048000
98	2006-09-29	0.028000
99	2008-06-30	0.161000
100	2025-06-30	0.010000
101	2025-12-16	1.865000
102	1989-12-20	0.700000
103	2002-12-13	0.017000
104	2005-03-31	0.024000
105	2006-12-18	1.125000
106	2007-06-29	0.318000
107	2008-12-22	0.031000
108	2015-03-31	0.115000
109	2015-09-30	0.024000
110	1997-09-30	0.020000
111	2019-12-19	0.573000
112	1984-07-24	0.070000
113	1987-12-23	2.220000
114	1998-12-28	0.030000
115	1999-06-30	0.470000
116	2018-09-28	0.026000
117	2020-06-30	0.020000
118	2021-06-30	0.011000
119	1980-01-25	0.360000
120	2024-09-30	0.010000
121	2021-12-20	1.518000
122	1994-09-27	0.055000
123	1987-07-22	0.070000
124	1996-12-27	1.115000
125	2002-03-28	0.012000
126	2009-03-31	0.026000
127	2014-06-30	0.021000
128	2025-03-31	0.636000
129	1993-12-21	0.630000
130	1982-07-21	0.070000
131	1988-06-22	0.070000
132	1989-06-23	0.100000
133	1991-06-21	0.070000
134	1997-03-31	0.015000
135	1998-03-31	0.025000
136	1999-12-20	0.435000
137	1982-01-21	0.470000
138	2002-09-30	0.018000
139	2010-09-30	0.018000
140	2013-09-30	0.021000
141	2023-03-31	0.018000
142	2023-09-29	0.014000
143	2025-09-30	0.004000
144	2001-12-10	0.015000
145	2009-09-30	0.015000
146	2014-03-31	0.177000
147	1983-01-25	0.520000
148	1985-01-28	0.280000
149	1995-09-26	0.055000
150	1999-03-31	0.015000
151	2000-06-30	0.168000
152	2002-06-28	0.014000
153	2010-06-30	0.015000
154	2013-12-23	0.909000
155	1982-10-20	0.070000
156	2017-06-30	0.032000
157	1989-03-23	0.070000
158	2000-09-29	0.010000
159	2022-03-31	0.146000
160	1981-07-21	0.070000
161	1992-03-25	0.070000
162	1994-03-23	0.055000
163	2016-03-31	0.030000
164	2016-09-30	0.025000
165	1988-09-13	0.070000
166	1982-04-20	0.070000
167	1989-09-25	0.070000
168	1991-09-26	0.070000
169	1991-12-17	0.418000
170	1992-12-22	0.370000
171	1995-06-27	0.284000
172	2007-03-30	0.031000
173	1980-04-23	0.070000
174	2017-09-29	0.017000
175	2019-09-30	0.033000
176	2021-09-30	0.009000
177	2007-09-28	0.030000
178	2013-06-28	0.028000
179	1983-10-19	0.070000
180	1997-06-30	0.215000
181	2001-03-30	0.015000
182	2001-09-28	0.020000
183	2017-12-21	0.597000
184	1987-01-23	0.905000
185	2003-12-18	0.038000
186	2008-03-31	0.033000
187	2009-12-22	0.022000
188	2011-03-31	0.020000
189	1980-07-18	0.070000

3.7 KiB Raw Blame History

3.7 KiB

Raw Blame History