Skip to content
Financial Context Wiki

Crypto Basis Trading

Crypto basis trading pairs spot with dated futures or perpetuals, but locked expiry carry and path-dependent funding require different ledgers, prices and risk controls.

Updated

For education only. A delta-reduced basis trade can still lose through margin, funding, execution, borrowing, settlement, collateral and venue failure; reconcile actual fills and cash flows.

Direct answer

Crypto basis trading combines offsetting spot and derivative exposure to capture a relative-price or cash-flow difference. For a dated future, define signed basis as B(t,T) = F(t,T) - S(t). A cash-and-carry trade buys spot and shorts the matched future when that basis is positive; a reverse cash-and-carry borrows and sells spot while buying the future when it is negative. Quantity, contract multiplier, delta, expiry and settlement reference must match.

A dated trade held through settlement can algebraically lock an entry spread under stated assumptions, but it is not risk-free: executable prices, financing, variation margin, borrow, reference mismatch, taxes and venue failure remain. A spot-perpetual trade is different. It has no fixed convergence date; its result depends on the entire path of basis, actual settled funding and exit prices. Predicted funding is not a receivable.

“Market neutral” describes reduced first-order directional exposure, not a guaranteed return. Winning-leg value may be inaccessible while the losing leg faces a margin call, and equal dollar notionals need not create equal asset delta for inverse or quanto products.

Net carry
$359.2
Annualized net return
14.57%
Gross basis
$400

Outputs are educational approximations. They exclude venue rules, taxes, latency, oracle behavior, and other protocol-specific parameters unless shown.

How it works

  1. Pin the legal entity and venues, spot and derivative instrument IDs, dated or perpetual lifecycle, expiry and settlement reference, linear, inverse or quanto payoff, multiplier, collateral and settlement assets, and margin mode.
  2. Obtain simultaneous executable spot ask or bid and derivative bid or ask. Define signed basis, contract quantity, delta and gross notional from actual sides of the book, not unrelated last or midpoint prices.
  3. Maintain four ledgers: spot inventory and financing or borrow; signed derivative position and PnL; collateral, initial and maintenance margin or variation margin; and fees, funding, transfers, slippage and tax.
  4. For dated futures, calculate entry carry and day-count annualization; for perpetuals, model conditional funding and exit basis separately. State the capital denominator and whether return is simple APR or compounded APY.
  5. Execute both legs while controlling partial fills and legging. Record actual fills, multipliers, signed delta and currency exposure, then retain enough margin for basis widening and price gaps.
  6. Monitor basis, funding, borrow, mark and index prices, margin, transfer access and venue status. For dated positions, also monitor last trade, settlement and roll; for perpetuals, reconcile every funding interval.
  7. At expiry, close or roll, reconcile the spot sale or return, derivative settlement or close, released collateral, funding, borrow, fees and tax. Report realized cash flows rather than a quoted annualized spread.

For a matched dated trade held to a common terminal economic price, gross carry is the entry basis. An early close instead earns gross PnL = B_entry - B_exit. For a perpetual trade, use net = spot PnL + derivative PnL + settled funding - all costs; neither funding nor exit basis is locked.

Example

  • Dated hold to settlement. Buy 1 BTC at the executable spot ask of 60,000 USDC and short a matched future at the executable bid of 61,800. If the economic spot and official settlement reference are both 62,000, spot PnL is +2,000, futures PnL is -200 and gross carry is 1,800. Fees of 90 and financing or collateral cost of 450 leave 1,260. On 60,000 cash for 90 days, net holding return is 1,260 / 60,000 = 2.1%; ACT/365 simple annualization is 2.1% x 365 / 90 = 8.5166666667%.
  • Executable entry. Suppose spot bid or ask is 60,000 / 60,060 and future bid or ask is 61,760 / 61,820. Cash-and-carry enters at the spot ask and future bid, so basis is 61,760 - 60,060 = 1,700, or 1,700 / 60,060 = 2.8305028305%. Combining midpoints would falsely report 1,760 before costs.
  • Perpetual funding path. A short 2 BTC perpetual has interval notionals of 120,000, 124,000 and 118,000 USDT. Settled rates from the short’s viewpoint are +0.010%, +0.005% and -0.020%, producing +12 + 6.20 - 23.60 = -5.40 USDT. A positive initial prediction did not lock a gain.
  • Contract units. A 1.5 BTC spot position is hedged by 1,500 contracts if a linear contract represents 0.001 BTC. An inverse contract with 100 USD face at 60,000 has approximate local delta 100 / 60,000 = 0.0016666667 BTC, suggesting about 900 contracts at that price. Delta changes with price and the exact product formula, so equal contract counts are not a hedge rule.

Risks

  • Spot and derivative reference different underlyings or quote assets.
  • Midpoint or last prices are mistaken for executable basis.
  • Legging or partial fills leave directional exposure.
  • Contract multiplier or signed quantity is wrong.
  • Linear, inverse or quanto delta and PnL units are mixed.
  • Official settlement reference differs from spot exit value.
  • Basis widens before convergence and creates mark loss.
  • Variation margin or liquidation interrupts the trade.
  • Spot financing rate rises or credit is withdrawn.
  • Reverse-trade borrow is unavailable, repriced or recalled.
  • Perpetual funding reverses or prediction differs from settlement.
  • Funding notional, sign, timestamp, cap or interval is wrong.
  • Roll liquidity, calendar basis and execution cost change.
  • Mark, index, oracle or settlement process is disrupted.
  • Spread, slippage, commissions and network fees are omitted.
  • Cross-venue transfers and fragmented collateral fail.
  • Withdrawal freeze, custody failure or venue insolvency occurs.
  • Stablecoin, collateral or wrapped asset depegs or freezes.
  • Position limits, ADL, delisting or early settlement changes the path.
  • Tax, FX, accounting, API or operational recovery fails.

Common misconceptions

  • Market neutral means risk-free. It reduces directional delta while basis, margin, execution, funding, borrow and credit risk remain.
  • Dated futures always converge to the visible spot quote. They settle under a specified benchmark and time; the executable spot exit can differ.
  • Positive perpetual funding is locked yield. Rate, payer direction, notional, eligibility and exit basis can change before settlement.
  • Equal dollar notional is a perfect hedge. Multiplier, delta, inverse or quanto payoff and settlement units determine the match.
  • Annualized basis is net APY. Day count, capital denominator, compounding, fees, financing, margin and taxes must be stated.

Sources

Navigation

Search the wiki...