PyRank
bashtage

arch

ARCH models in Python
PyPI GitHub
Downloads
Day
33.7K
Week
226.9K
Month
965.2K
Stars
1.5K
Forks
280
Issues
26
Version
8.0.0

Package Insights

What's this?
Score breakdown - each component scores 0-100, weighted by percentage
Maintenance
80
Popularity
69
Adoption
79
Community
60
How the maintenance status was determined
Last commit
46 days ago
Monthly downloads
965,187
Active
Activity within 30 days
• Stable
Activity within 31-180 days
Minimal
Activity within 181-365 days, or no activity data
At Risk
No activity for > 365 days, but > 10,000 monthly downloads
Archived
Repository flagged as archived on GitHub
How the popularity category was determined
Monthly downloads
965,187
Stars
1,520
Stars per 1k downloads
1.57
Industry Standard
> 10,000,000 monthly downloads
Hidden Gem
< 0.5 stars per 1k downloads and > 100,000 monthly downloads
Community Favorite
> 5 stars per 1k downloads
• Rising Star
Balanced ratio of stars to downloads
Unknown
Fewer than 1,000 monthly downloads, or no star data
How download momentum is calculated
Week daily avg
32,409
Month daily avg
32,173
Momentum
+0.7%
((week_daily_avg - month_daily_avg) / month_daily_avg) * 100
Python version support tiers
requires_python
>=3.10
Cutting Edge
Minimum supported version is 3.12 or newer
• Modern
Minimum supported version is 3.9, 3.10, or 3.11
Legacy
Supports 3.8 or older (or Python 2)
Unknown
No requires_python specified or unparseable
License categories
License
NCSA
Permissive
MIT, Apache, BSD, ISC, Unlicense, CC0, etc.
Copyleft
GPL, LGPL, AGPL, MPL, EPL, etc.
Proprietary
Commercial, all rights reserved, custom EULAs
• Unknown
No license specified, or none of the above match
How the release cadence was determined
Last release
213 days ago
Total releases
48
Releases/year
4.1
Rapid
Last release within 365 days and > 12 releases/year
• Regular
Last release within 365 days
Slow
Last release 366-730 days ago
Stalled
Last release > 730 days ago, or no releases
Unknown
No usable release date available
How contributor risk was determined
Contributors
30
Monthly downloads
965,187
High Load
≤ 2 contributors and ≥ 50,000 monthly downloads
Moderate Load
< 10 contributors and ≥ 500,000 monthly downloads
Low Load
< 25 contributors and ≥ 5,000,000 monthly downloads, or sole maintainer with ≥ 10,000 monthly downloads
• Balanced
Enough contributors for the package's popularity
Unknown
No contributor data available
Engagement
64
 
Issue Burden
17.1
per 1k stars
Discussions
0.0
per 1k stars
Fork Ratio
10.7%
contrib / forks
Stale Release
166d
 
PR Velocity
Active
 

Weekly Downloads

GitHub Stars

Not all downloads include detailed metadata. Breakdowns reflect the subset that does.

Downloads by OS

Linux 23.5K
Windows 1.4K
macOS 678

Python Versions

3.12
47.2% 11.7K
3.11
26.7% 6.6K
3.13
10.2% 2.5K
3.10
10.2% 2.5K
3.14
5.6% 1.4K

Top Countries

1. US US
21.3K
2. NL NL
793
3. SG SG
497
4. CN CN
296
5. DE DE
228
6. BR BR
221
7. IE IE
221
8. TW TW
187
9. IN IN
186
10. KR KR
186

Dependencies

5
52 optional dependencies

Used By

77
View all 77 dependents

Package Information

License
NCSA
First Release
September 3, 2014
Last Release
7 months ago
Last Commit
1 month ago
Latest Version
8.0.0
Total Releases
48
Contributors
30
Open PRs
18
Archived
No
Python Versions
3.10 3.11 3.12 3.13
Wheels
cp27 cp310 cp311 cp312 cp313 cp314 cp33 cp34 cp35 cp36 cp37 cp38 cp39
Keywords
arch variance econometrics volatility finance GARCH bootstrap random walk unit root Dickey Fuller time series confidence intervals multiple comparisons Reality Check SPA StepM
Tracking Since
January 6, 2026
Data Updated
May 17, 2026
Data Freshness
Fresh

Links