Jelly Roll

The name comes from the pastry analogy - the strategy 'rolls' exposure from one expiration date to another, with the arbitrage profit (the 'jelly') captured between the two dates.

Not entirely. While it's designed as an arbitrage strategy with limited risk, there are still risks: early assignment, execution risk, dividend changes, and interest rate movements. It's lower risk than directional strategies but not risk-free.

Jelly roll profits are typically small because arbitrage opportunities are competed away quickly. Expect profits of S$0.02-0.10 per share when opportunities exist. Large positions are needed for meaningful absolute returns.

You need capital for margin on the short options and potentially to hold stock if the near-term options are exercised/assigned. The capital requirement can be significant for each contract.

Pure arbitrage opportunities are rare in efficient markets. They may appear briefly during market stress, around dividend announcements, or when there's unusual activity in one expiration. Most retail traders rarely find profitable opportunities after costs.

Add the present value of all dividends falling between the two expirations to the standard formula. Fair Value = PV(Dividends) - Strike × (r × time_difference). Dividends increase the credit you should receive (make fair value more negative).

If the short far-term call is assigned (usually before ex-dividend), you must deliver 1,000 shares. If you don't own them, you're short stock. You'll miss the dividend and have an unbalanced position. This is a key risk to monitor.

A jelly roll uses both calls and puts - that's inherent to the structure. You can't choose one or the other because synthetic stock requires both. You're using 2 calls (one long, one short) and 2 puts (one long, one short).

IV affects the vega component. Since you're net long vega (far-term options have more vega), an IV increase helps your position and IV decrease hurts it. However, this is secondary to the carry/interest rate effect.

Yes, but it's risky. If you do, start with the least liquid leg. However, legging in creates execution risk - prices can move between legs. Ideally, execute as a single combo order if your broker supports it.

Rearrange the fair value formula: Implied r = d + JR_market / (Strike × (t2 - t1)). If the implied rate differs significantly from market rates, there may be an arbitrage opportunity (after accounting for dividends and transaction costs).

Rho ≈ Strike × (t2 - t1). For a S$33 strike with 30 days between expirations (0.082 years), Rho ≈ S$33 × 0.082 = S$2.71 per 1% rate change. This is the key Greek for jelly rolls.

Market makers use jelly rolls to arbitrage mispricings and to adjust their synthetic stock positions across expirations. They may also use them as financing tools - a jelly roll is effectively lending or borrowing at the implied interest rate.

Both are interest rate arbitrage strategies. A box spread is within one expiration (locks in strike difference at present value). A jelly roll is across expirations (captures carry between dates). They can be combined for full term structure exposure.

Yes, if calendar vega is a concern. You can trade calendar spreads or ratio spreads to offset the net vega. However, for most jelly rolls, the vega exposure is small relative to the primary rho exposure, making hedging unnecessary.