ZB (30-Year US Treasury Bond Futures)
The 30-Year US Treasury Bond futures contract on CBOT — $100,000 face value per contract with 1/32nd tick increments and $31.25 per tick.
What is ZB (30-Year US Treasury Bond Futures)?
ZB is the symbol for the 30-Year US Treasury Bond futures contract, traded on CBOT (part of CME Group). Each contract represents $100,000 face value of US Treasury bonds with original maturity of at least 15 years (deliverable basket includes 25-30 year bonds). The contract price moves inversely to long-term interest rates — when rates rise, ZB falls; when rates fall, ZB rises.
ZB tick size is unusual among futures contracts: it trades in 1/32nd-of-a-point increments rather than decimal ticks. A price quote like 119’16 means 119 and 16/32 = 119.50. One full point = $1,000 in P&L; one tick (1/32) = $31.25.
ZB is used by traders positioning around Fed rate decisions, FOMC commentary, and macro flight-to-safety scenarios. During equity selloffs, money flows into long-duration treasuries, driving ZB higher (and yields lower). The contract’s longer duration vs ZN means each percentage-point rate change moves ZB more dramatically.
How ZB (30-Year US Treasury Bond Futures) works
ZB contract specifications (May 2026):
- Symbol: ZB (sometimes ZB1! or @ZB)
- Exchange: CBOT Globex (CME Group)
- Underlying: US Treasury bonds with maturity ≥15 years
- Contract size: $100,000 face value
- Tick size: 1/32nd of a point
- Tick value: $31.25 per tick
- Point value: $1,000 per full point
- Contract months: March, June, September, December
- Trading hours: Sun 6:00 PM ET-Fri 5:00 PM ET, 1-hour daily break
- Settlement: Physical delivery of treasury bonds (rare in retail)
Margin: Day-trading $500-$1,500 per contract. CME initial margin ~$3,500-$5,500.
Price quote convention: Quotes use ‘ notation. “119’16” means 119 + 16/32 = 119.50. Modern platforms display decimal equivalents alongside the 32nds.
Volatility profile:
- Daily range typically 0.5-1.5 points (16-48 ticks) = $500-$1,500 per contract
- FOMC days: 1-3 point moves common = $1,000-$3,000 per contract
- NFP days: 0.5-1.5 points typical
When prop firm traders use ZB: FOMC rate decisions, recession trades (long ZB on growth scares), inflation-surprise plays (short ZB on hot CPI), flight-to-safety during equity selloffs.
Worked example
Setup: Trader on Apex $100K account holds 1 ZB long from 119’08 (119.25), stop at 118’24 (118.75 = 16 ticks = $500 risk), target at 120’08 (120.25 = 32 ticks = $1,000 reward). Risk/reward 1:2.
Outcome — Fed signals dovish pause:
- ZB rallies on dovish FOMC commentary as 30-year yields drop ~10 basis points.
- Price reaches 120’08 within FOMC press conference.
- Gross P&L: +32 ticks × $31.25 = +$1,000
- Commission ~$3.50 round-trip → Net ~$996.50
Drawdown context on Apex $100K: Trailing drawdown $3,000. 1 ZB at $500 stop = 17% of buffer per loss. Most ZB traders use 1-2 contracts and stay flat through high-impact news.
ZB (30-Year US Treasury Bond Futures) vs related concepts
Side-by-side comparison of ZB (30-Year US Treasury Bond Futures) against the most commonly confused alternatives.
| Concept | Definition | Category |
|---|---|---|
| ZB (30-Year US Treasury Bond Futures) this term | The 30-Year US Treasury Bond futures contract on CBOT — $100,000 face value per contract with 1/32nd tick increments and $31.25 per tick. | Specific Contracts |
| ZN (10-Year US Treasury Note Futures) | The 10-Year US Treasury Note futures contract on CBOT — $100,000 face value per contract with 1/64th tick increments and $15.625 per tick. The most actively traded treasury futures contract. | Specific Contracts |
| ES (E-mini S&P 500 Futures) | The E-mini S&P 500 futures contract — the most actively traded equity index future in the world, tracking the S&P 500 index with $50 per point and $12.50 per 0.25-tick. | Specific Contracts |
| GC (Gold Futures) | The standard Gold futures contract on COMEX — 100 troy ounces per contract with $0.10 tick size and $10 per tick. The dominant gold trading vehicle for futures prop firms. | Specific Contracts |
| Futures Contract | A standardized agreement to buy or sell a specific quantity of an underlying asset at a predetermined price on a specified future date — the foundational instrument of futures markets. | Futures Mechanics |
| Point Value | The dollar value of a one-point price movement on a futures contract — equal to the contract multiplier; a key input to position sizing math. | Futures Mechanics |
| Margin | The capital deposit required to open and hold a futures position — set by the exchange (initial margin) and broker (day-trade margin), typically 5-15% of contract notional value. | Futures Mechanics |
Why traders fail ZB (30-Year US Treasury Bond Futures)
Misreading the 32nds price quote. 119’16 is NOT 119.16 — it’s 119 + 16/32 = 119.50. Setting a stop at “119’12” instead of “119.12” places it at 119.375 (12/32 below 119) instead of below 119. Most platforms have decimal display options.
Confusing ZB with ZN. ZB is 30-year (longer duration, bigger moves per rate change). ZN is 10-year (shorter duration, smaller moves). Same tick fraction (1/32) but ZB $31.25 per tick, ZN $15.625 per tick. Don’t size identically expecting same dollar P&L.
Trading ZB through FOMC at full size. Treasury futures can move 1-3 points ($1,000-$3,000 per contract) in 60 seconds during FOMC release or chair press conference. Position sizes that work normally can blow drawdown buffers during FOMC velocity.
Ignoring duration risk in carry trades. Long-ZB positions held overnight have bond convexity — small rate moves produce small P&L, large rate moves produce disproportionately large P&L. Sizing should account for both volatility and duration.
Frequently asked questions about ZB (30-Year US Treasury Bond Futures)
What is ZB futures?
ZB is the 30-Year US Treasury Bond futures contract on CBOT (CME Group), representing $100,000 face value of treasury bonds. Tick size is 1/32nd of a point ($31.25 per tick), full points are $1,000.
How do I read ZB price quotes?
ZB uses 32nds notation. 119'16 means 119 + 16/32 = 119.50. Modern platforms display decimal equivalents alongside the 32nds notation.
What is the difference between ZB and ZN?
ZB is 30-Year T-Bond futures (longer duration, bigger price moves per rate change). ZN is 10-Year T-Note futures (shorter duration, smaller moves). ZB has $31.25 tick value vs ZN's $15.625. ZB moves more dramatically on FOMC and macro events.
What is the day-trading margin for ZB?
Day-trading margin for ZB is $500-$1,500 per contract at most futures prop firms. CME exchange initial margin for overnight holds is approximately $3,500-$5,500 per contract.
When does ZB trade?
ZB trades Sunday 6:00 PM ET to Friday 5:00 PM ET, with a 1-hour daily break. Most active sessions: 8:00 AM-3:00 PM ET (US RTH) and during scheduled news (FOMC, NFP, CPI). Asian sessions see thinner volume except during global rate or currency crises.