30-Year T-Bond Futures Contract Specifications
ZB · CBOT · one contract = $100,000 face
30-Year T-Bond futures (ZB) trade on CBOT in 0.03125-increment ticks worth $31.25 per contract; a full 1.0-point move is $1,000.00. One contract covers $100,000 face.
Specification table
| Name | 30-Year T-Bond |
| Exchange | CBOT |
| Ticker symbol | ZB |
| Contract unit | $100,000 face |
| Tick size | 0.03125 |
| Tick value | $31.25 |
| Point value | $1,000.00 |
| CFTC contract code | 020601 |
| COT report families | legacy, tff |
| Quote convention | 1/32 of a point |
Worked tick math
A 10-tick move on 1 30-Year T-Bond contract (ZB) is $312.50 — tick size 0.03125 × tick value $31.25. A 1-point move is 32 ticks = $1,000.00. Ten contracts moving 5 ticks = $1,562.50.
Run your own numbers: 30-Year T-Bond futures calculator.
Positioning: large speculators are net short 186,790 contracts as of the 2026-07-21 COT report — full 30-Year T-Bond COT data.
FAQ
- What is the tick size and value of 30-Year T-Bond futures?
- 30-Year T-Bond (ZB, CBOT) moves in 0.03125 increments worth $31.25 per contract.
- What does one ZB contract cover?
- One contract covers $100,000 face.
- How much is a full point on ZB?
- $1,000.00 — tick value ÷ tick size.
Related
30-Year T-Bond COT report
30-Year T-Bond calculator
30-Year T-Bond COT history (CSV)
All contract specs
All calculators
Specs verified against exchange sources 2026-07-25; the exchange's own contract page is always authoritative. Not investment advice.