BTC 3-Month Annualised Futures Basis
Cross-venue average of BTC 3-month annualised futures basis: ((3M futures price - spot price) / spot price) × (365/90). Positive = contango = bullish positioning premium. Negative = backwardation = panic / structural short demand. The cleanest term-structure positioning signal in the BTC market, complementing the funding-rate positioning premium. AU trader framing on cash-and-carry economics, ATO CGT treatment, and BTC AUD positioning regimes.
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BTC 3-month annualised futures basis, averaged across CME, Binance dated futures, and Bybit dated futures. Positive = contango (bullish). Negative = backwardation (panic / hedge demand).
What is the futures basis?
The futures basis is the annualised percentage spread between a dated futures contract and the spot price. For BTC, the institutional standard tenor is 3 months. The computation: ((3M futures price - spot price) / spot price) × (365 / 90). The annualisation makes the basis comparable to other yields - a 5 percent annualised basis is roughly equivalent to a 5 percent yield on a 3-month treasury bill, where the "principal" is the BTC notional.
Three regimes. Contango (positive basis): futures above spot, bullish positioning premium, normal regime in a rising market. Flat (basis ~0): futures and spot are at parity, no positioning premium, transitional regime. Backwardation (negative basis): futures below spot, panic or structural hedge demand, rare for BTC and contrarian-bullish.
Basis regimes since 2020
| Basis range | Regime | Historical examples | Implication |
|---|---|---|---|
| Above +25% | Mania-grade contango | Apr 2021 (42%), Feb 2021 (32%) | Cycle-top warning; reduce risk |
| +15% to +25% | Hot contango | Mar 2024 (22%), Dec 2024 (18.5%) | Late-stage bull; vol-risk elevated |
| +5% to +15% | Healthy bull | Most of 2024, Q4 2023 | Trending higher; trend-follow viable |
| 0% to +5% | Neutral / transition | Most of 2022-23 chop | No positioning edge |
| Below 0% | Backwardation | Mar 2020 (-8.5%), Nov 2022 (-4.5%) | Panic / late-stage capitulation |
Trader takeaway
- Sustained extreme contango is a top-warning. Every basis-peak above 25 percent annualised since 2020 has preceded a 20+ percent BTC drawdown within 6 weeks. Pattern consistency suggests structural rather than coincidental.
- Backwardation is rare and contrarian-bullish. Negative basis on a 3-month tenor implies either panic-driven futures selling or structural hedge demand. Historically both setups have resolved with strong upside within 1-3 months.
- Basis plus funding gives positioning matrix. Hot funding + hot basis = mania (April 2021). Hot funding + flat basis = perp-driven retail speculation without institutional alignment. Flat funding + hot basis = institutional positioning ahead of retail. Each combination has distinct implications.
- CME basis vs offshore basis split. CME (regulated, US institutional) basis is usually lower than Binance / Bybit offshore basis. When the spread is wide, US institutional positioning is more conservative than offshore retail-plus-prop-trading - bearish for retail-led rallies but constructive for institutional flow regimes.
- Cash-and-carry yield economics. 10 percent annualised basis = 10 percent annualised yield (less ~2-3 percent friction) on a delta-neutral spot-long + futures-short structure. Yields above 15 percent annualised attract delta-neutral funds and compress the basis quickly. For AU retail the trade is mostly out of reach due to margin requirements and ATO income-tax treatment of the carry.
Methodology
- Sources. Anchored history from CME (BTC futures front-quarter), Binance dated futures (BTCUSDT quarterly), Bybit BTC quarterly futures, CryptoQuant, Glassnode. Live overlay where exchange dated-futures endpoints permit.
- Calculation. ((3M futures price - spot price) / spot price) × (365 / 90), averaged across CME, Binance, Bybit.
- Frequency. Daily mean.
- Units. Percent annualised.
- Static-first. Seed snapshot continues to render if endpoints are unreachable.
Related tools
- BTC Funding Rate - the perpetual-positioning premium analogue.
- BTC Aggregate Open Interest - the size-of-positioning gauge.
- Bybit vs Binance Basis Differential - the cross-venue spread on the same metric.
- Deribit DVOL - the vol-expectation indicator.
Frequently asked questions
It's the annualised percentage spread between the 3-month dated BTC futures price and the BTC spot price. Computed as ((3M futures price - spot price) / spot price) × (365/90). A positive basis (contango) means futures trade above spot, indicating bullish positioning premium. A negative basis (backwardation) means futures trade below spot, indicating either panic selling, hedging-driven structural short, or convenience yield. The 3-month tenor is the institutional standard for cash-and-carry trade comparison.
Both measure positioning premium, but on different instruments and horizons. Funding rate is the perpetual-contract premium, paid every 4-8 hours. It captures intraday-to-multi-day speculative positioning. 3-month basis is the dated-futures premium, expressed as annualised yield. It captures longer-horizon positioning and the cash-and-carry trade economics. The two usually move together; large divergences signal a structural change (typically a regulatory or capital-flow shift).
Bullish positioning premium. Buyers of 3-month futures are paying a premium over spot, locking in long exposure at higher prices than current. Sustained basis above 15 percent annualised signals strong bullish positioning. The April 2021 peak of 42 percent annualised was extreme positioning that preceded the May 2021 crash. The March 2024 peak of 22 percent preceded the late-March BTC drawdown. Sustained extreme contango is a late-cycle warning.
When 3-month futures trade below spot, basis is negative and the curve is in backwardation. For most commodity-like assets this is unusual; it implies either panic selling pressure (March 2020 COVID, FTX November 2022) or structural hedge demand from holders. BTC has been in backwardation at major bottoms in 2020, 2022, and briefly in 2025. The signal is usually marked oversold with sharp upside resolution. Persistent backwardation is rare for BTC because cash-and-carry arbitrage closes the gap.
In principle yes; in practice the trade has tightened to professional levels. The trade is long spot BTC + short dated futures, locking in the basis as a yield with no spot-price exposure (delta-neutral). At 10 percent annualised basis and zero borrowing cost, this is a 10 percent risk-free return - very attractive. Friction includes: (1) exchange custody risk (FTX was the largest delta-neutral basis-trade book pre-collapse), (2) futures margin requirements eating capital, (3) basis can move adverse to your entry, (4) fees and slippage of ~2-3 percent annualised. For retail AU residents the trade is mostly accessible via CME (regulated) + spot Coinbase / Kraken, but capital and operational requirements typically exclude retail size.
Three channels. (1) AUD-priced BTC moves with global BTC; the basis is a positioning regime signal regardless of where you trade. (2) Cash-and-carry yields are taxable as income (ATO position) rather than capital gains; the AU CGT discount does not apply to delta-neutral basis trades. (3) AU retail mostly cannot run the trade due to margin and operational requirements, but reading the basis is a regime classification tool for spot position sizing. Sustained extreme contango = caution; backwardation = constructive contrarian signal.
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