Lesson 083 min read

Basis & Funding Trades: Delta-Neutral Yield

November 05, 2026

// TL;DR

These are crypto's signature 'algo' trades because they earn yield WITHOUT betting on direction — they're DELTA-NEUTRAL. CASH-AND-CARRY: when a dated future trades above spot (contango), buy spot and sell the future; price moves cancel, and you collect the basis as the future converges to spot at expiry (e.g. a 5% premium over 90 days ≈ 20% annualized). FUNDING CAPTURE: when perp funding is positive (longs pay shorts), short the perp and buy spot to stay delta-neutral, collecting funding every 8h (e.g. 0.03%/8h ≈ 33% APR while it lasts). The yield exists because crypto is leverage-hungry — people pay up to be long with leverage, so you get paid to take the other side. The catches are real and operational: funding/basis can flip against you fast, you hold two legs (maybe on two exchanges), fees eat the edge, and a leg can get liquidated. Delta-neutral is not risk-neutral.

Now the trades that feel most like proper quant work — and that are, honestly, where a lot of disciplined crypto money is actually made. These are delta-neutral: they do not bet on BTC going up or down. Instead they harvest a structural yield that exists because crypto is so hungry for leverage.

The two trades

Basis and funding, the delta-neutral yield trade. Cash-and-carry with a dated future: when the future trades above spot, in contango, buy spot and sell the future; it is delta-neutral because the price move cancels out, and you collect the basis as the future converges to spot at expiry — for example a 5 percent premium over 90 days is about 20 percent APR. Funding capture with a perp: when funding is positive, longs pay shorts, so short the perp and buy spot or go long on another venue to stay delta-neutral, and collect the funding every 8 hours — for example 0.03 percent per 8h is about 33 percent APR while it lasts, but watch because funding flips sign fast. Why these are the real crypto algo money and the catch: they don't bet on BTC direction, they are delta-neutral, harvesting a structural yield that exists because crypto is leverage-hungry; when everyone wants to be long with leverage, perps trade above spot and funding goes positive so you get paid to take the short-perp long-spot side. Annualised yields of 10 to 30 percent plus appear in bull markets. The catches are real: funding or basis can flip against you suddenly, you hold two legs on maybe two exchanges so execution fees and exchange risk matter, and a leg can get liquidated if you mismanage margin.

Cash-and-carry (dated futures)

When a dated future trades above spot (a state called contango), you can lock in that gap:

  • Buy spot BTC and sell the dated future in equal size.
  • This is delta-neutral: if BTC rises, your spot gains and your short future loses the same — they cancel. You are not betting on direction at all.
  • At expiry the future converges to spot, and you collect the basis (the premium you sold) as pure yield.
Future trades 5% above spot, 90 days to expiry:
  annualized yield = 5% × (365 / 90) ≈ 20% APR,  delta-neutral

Funding capture (perps)

The same idea using perps and funding (Lesson 3):

  • When funding is positive (longs pay shorts), short the perp and buy an equal amount of spot (or go long on another venue) to stay delta-neutral.
  • You collect the funding payment every 8 hours while remaining market-neutral.
Funding 0.03% / 8h held delta-neutral:
  ≈ 0.09% / day ≈ 33% APR  (while the rate stays positive)

Why the yield exists (and why it’s not free)

This is not magic or a mispricing — it is a structural yield. Crypto is full of traders who desperately want to be long with leverage. To do that, they buy perps and dated futures, pushing those above spot and funding positive. Someone has to take the other side, and that someone gets paid for it. So cash-and-carry and funding capture are really you providing leverage to the crowd and collecting the fee. In bull markets these yields reach 10–30%+ annualised.

But delta-neutral is not risk-neutral — the risks are just different, and operational:

  • Funding/basis can flip. Positive funding can turn negative suddenly (a sharp sell-off), and now you are paying. You must monitor and be ready to exit.
  • Two legs, maybe two exchanges. You hold spot on one venue and the perp/future on another. Execution, transfer latency, fees on both legs, and — crucially — exchange risk on each venue all apply. Fees alone can eat the whole edge if you are not careful.
  • Liquidation. The short-perp leg uses margin. A sharp rally can liquidate it if you run too much leverage or don’t top up margin — and a half-closed hedge is suddenly a naked directional bet.
  • Capital efficiency and transfers. Moving collateral between venues takes time and costs money; during that window you may be unhedged.

So the trade is “simple” in idea and demanding in execution — which is exactly why it suits a careful programmer with good risk code, and punishes a casual one.

Pitfalls

  • Ignoring fees. Two legs, entry and exit, on two venues — fees can exceed the funding/basis you collect. Model them precisely before trading.
  • Over-leveraging the perp leg. A rally liquidates your short and leaves you long spot only — now you’re directional and probably losing. Keep leverage low, watch the liquidation price.
  • Assuming funding stays positive. It flips, sometimes violently. Have an exit rule and automate it — this is a 24/7 trade.

Recap

Cash-and-carry (buy spot, sell a dated future, collect the basis) and funding capture (short the perp, long spot, collect funding) are delta-neutral yield trades, earning 10–30%+ APR in bull markets because crypto is leverage-hungry and you get paid to take the other side. The catches are operational: funding/basis can flip, you juggle two legs across venues, fees eat the edge, and the perp leg can be liquidated. Delta-neutral is not risk-neutral.

Next: Lesson 9 — Advanced & DeFi Options, including delta-hedged volatility selling and on-chain options.