Options-based income
Put-Write Strategies
A rules-based programme of repeatedly selling index puts against a Treasury-bill collateral pool, so the income is a volatility risk premium stacked on top of a cash yield.
A put-write strategy systematically sells put options on a broad index, usually at or near the money and on a fixed monthly or weekly schedule, with the full notional exposure collateralised by Treasury bills or a money-market fund. The return has two distinct sources: interest on the collateral and the premium collected, which over time reflects the gap between implied and realised volatility known as the volatility risk premium. The trade-off is fixed: gains are capped at the premium each cycle, while losses in a sharp index decline track the market almost one for one.
Option premiums Semi-passive
The labels above place this income type before you read a word. The first is the mechanism — how the money actually reaches you, whether by lending it out, owning a slice of something, renting an asset, licensing a right, selling an option or owning a business somebody else runs. The second says whether the income keeps arriving on its own once it is running, or whether it needs work from you to keep coming. Both are descriptions of how the thing is built, not verdicts on it.
How it works
A put-write programme sells put options on a broad-based index rather than on individual stocks. That removes company-specific event risk, such as earnings surprises or takeover news, and the contracts settle in cash with no shares changing hands. The collateral backing the puts, typically Treasury bills or a government money-market fund, is sized to the full notional value of the contracts sold. That full sizing is what separates the strategy from a leveraged short-put position: the seller could pay the maximum possible loss without borrowing.
Rules govern the process rather than a manager's judgment. A programme fixes the moneyness of the puts written, commonly at the money, the tenor, monthly or a laddered set of weekly contracts, and the exact day each cycle rolls. At expiry, if the index closed below the strike, the collateral pool is debited the cash difference and a new put is written the same day, so exposure never lapses. Exchange-published benchmark indices track this mechanically, which is how the strategy is studied academically and how funds describe their mandates.
The return the strategy is trying to harvest is called the volatility risk premium: index option buyers have historically paid an implied volatility above what the index subsequently realised, and the seller collects that spread across many cycles. A weekly ladder, writing a fraction of the book each week rather than the whole book once a month, smooths the average entry level and reduces the effect of any single day's volatility reading.
What it pays
Two sources stack on top of each other. The Treasury-bill or money-fund collateral earns interest on the full notional, and the option book generates a net premium after any settlement losses are subtracted. These two components behave differently: the collateral yield tracks short-term interest rates and has nothing to do with the option book, while the premium tracks index implied volatility and is highest right after a market selloff, when option prices are richest, and thinnest during long calm stretches.
The resulting payout pattern is bond-like most months and equity-like in bad ones, which is the practical meaning of a short-volatility return shape: frequent modest gains, occasional sharp losses. Funds running this strategy usually quote a distribution rate rather than a yield, since part of what is paid out is option premium and sometimes return of capital, not interest owed by a borrower.
The ceiling on any single cycle is the premium collected, in full, if the index finishes at or above the strike. There is no mechanism for participating in gains beyond that: a rally of any size and a flat market produce the same result for the put writer.
Costs and taxes
Transaction costs on the largest index option contracts are modest because those markets are unusually deep, but a roll happens every cycle, and those costs compound over a year of monthly or weekly resets. A fund wrapper adds a management fee on top of that; running the programme directly instead trades the fee for time spent executing and monitoring the roll.
Options on broad-based indices are section 1256 contracts under US tax law. They are marked to market at year end and taxed 60% long-term and 40% short-term regardless of how long any individual contract was held. That mark-to-market rule means tax can be owed on unrealised, still-open positions at year end, and section 1256 losses can be carried back three years against prior 1256 gains if elected. Options on single stocks or narrow-based indices do not get this treatment; an equivalent single-stock put-write programme is taxed entirely at short-term rates.
Collateral interest is ordinary income at the federal and, where applicable, state level, but Treasury-bill interest itself is exempt from state and local tax, which is relevant in high-tax states. If the put-write book is run alongside a long position in the same index, straddle rules can defer losses and complicate the accounting further.
Liquidity and time commitment
The largest index option contracts are among the most liquid derivatives listed anywhere, so entering or unwinding a position is rarely the binding constraint. The collateral sits in bills or a money-market fund and can be converted to cash quickly, though it is functionally committed to the strategy for as long as puts are open against it.
Run directly, the programme demands a disciplined roll on schedule every cycle and, more importantly, a predetermined plan for what happens after a large loss, since that is the moment discretion tends to override the rules. Position sizing also needs continuous attention: as the index level moves, a fixed number of contracts no longer matches the collateral pool one for one, and the sizing has to be recalculated.
Run through a listed fund or ETF, the entire programme collapses into a single position with ordinary daily liquidity, no roll management, and no sizing to track.
How it goes wrong
A fast, sharp index decline produces a settlement loss that can dwarf many cycles' worth of collected premium, and the mechanical rule forces the next put to be written into a market that has already fallen, without any pause to reassess. Consecutive down months compound this: each losing cycle shrinks the collateral base, so the following premium is collected on a smaller pool, slowing any subsequent recovery.
Because the strategy is short volatility by construction, its history is a long run of small, steady gains punctuated by rare large losses. That pattern flatters short track records and understates the tail risk that only shows up over a full market cycle. In a strong, sustained bull market the strategy also lags meaningfully, since it captures only the fixed premium while a simple index holding compounds the full advance.
A programme run on margin instead of fully collateralised turns a defined, bounded exposure into one that can trigger a margin call and a forced close at the worst possible price. Separately, the section 1256 mark-to-market rule can generate a tax bill in a year when the position itself is unrealised, which surprises anyone expecting cash-basis treatment. Finally, abandoning the rules after a loss and restarting only once markets feel calm again systematically sells the cheapest premium available and skips the richest, which is the opposite of what the strategy is designed to do.
What to remember
- Income comes from two stacked sources: interest on fully collateralised Treasury bills or a money fund, and net option premium after settlement losses.
- Upside in any cycle is capped at the premium collected; downside in a sharp decline tracks the index almost one for one.
- Broad-based index options get section 1256 tax treatment, marked to market annually and split 60% long-term, 40% short-term, regardless of holding period.
- The strategy is short volatility by construction: frequent small gains, rare large losses, and persistent lagging in strong bull markets.
- Full collateralisation to notional value is what keeps this from being leveraged; running it on margin changes the risk profile entirely.
- Index option and Treasury-bill markets are deep and liquid, so the operational constraint is discipline in rolling on schedule, not the ability to exit.
This page explains how the income type works, which does not change from week to week, so it deliberately carries no rate and no price. The links below go to the pages that hold the current figures for it, each one stamped with the date the data was pulled. Read the mechanism here first: the numbers there are far easier to judge once you know what they are measuring.
See the live numbers: Options Income.
Frequently asked
What is a put-write strategy?
Where does the return actually come from?
How is it different from selling cash-secured puts on a single stock?
Why does the strategy underperform in bull markets?
Written for information only. Nothing here is investment, tax or legal advice, and no page on this site recommends buying or selling anything. Rules and tax treatment change; verify anything that matters with a professional who knows your situation. This explainer was drafted by a language model (claude-sonnet-5) from an editor-approved outline and fact sheet, under the rules set out in our editorial policy, and carries no market figures. Last updated Jul 29, 2026.