Decision Workspace
obcore vs lobster vs fin-primitives
Side-by-side comparison of Rust crates
42
obcore
experimentalv0.1.6
A single threaded, zero dependency price-time priority limit orderbook implementation in Rust.
42
lobster
growingv0.7.0
A fast limit order book (LOB)
51
fin-primitives
experimentalv2.12.0
Financial market primitives: validated types, order book, OHLCV aggregation, 550+ streaming technical indicators, position ledger, and risk monitoring.
Core Metrics
| obcore | lobster | fin-primitives | |
|---|---|---|---|
| Health Score | 42 | 42 | 51 |
| Total Downloads | 127 | 20.8K | 151 |
| 30d Downloads | 18 | 238 | 151 |
| Dependents | 0 | 16 | 7 |
| Releases | 7 | 9 | 8 |
| Last Updated | 36d ago | 1978d ago | 7d ago |
| Age | 2m | 5y 6m | 20d |
Health Breakdown
obcore
Maintenance
11
Quality
15
Community
3
Popularity
3
Documentation
10
lobster
Maintenance
5
Quality
14
Community
6
Popularity
5
Documentation
12
fin-primitives
Maintenance
13
Quality
12
Community
8
Popularity
3
Documentation
15
Technical Details
| obcore | lobster | fin-primitives | |
|---|---|---|---|
| Version | 0.1.6 | 0.7.0 | 2.12.0 |
| Stable (≥1.0) | ✗ No | ✗ No | ✓ Yes |
| License | Apache-2.0 OR MIT | ISC | MIT |
| Dependencies | 1 | 3 | 9 |
| Crate Size | 28KB | 314KB | 760KB |
| Features | 1 | 0 | 0 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2024 | 2018 | 2021 |
| MSRV | — | — | 1.81 |
| Owners | 1 | 1 | 1 |
Links
Quick Verdict
- •fin-primitives leads with a health score of 51/100, but none of the options score above 80.
- •lobster has the most downloads (20.8K), suggesting wider adoption.
- •⚠ lobster has not been updated in over a year.
- •obcore, lobster are pre-1.0 — API may change.