Cash-Secured Puts: Paid to Wait
A cash-secured put is a disciplined limit order with income attached. You sell a put at a strike below the current price, set aside the cash needed to buy the shares at that strike, and collect premium today. If the stock stays above the strike, the put expires worthless — you keep the premium and the cash is freed for the next cycle. If the stock falls below the strike, you buy the shares at the agreed price, minus the premium already received. The strategy only works on stocks you genuinely want to own.
The Mechanics
Pick a stock the portfolio would buy at a lower price. Pick a strike at or below the price you would prefer to enter — typically 5–15% below current. Sell one put per 100 shares of intended exposure. Set aside strike × 100 in cash per contract as collateral. Premium hits the account immediately. The trade resolves at expiration: either the stock is above strike and the put expires worthless, or the stock is below strike and the shares are assigned at the strike.
Effective Entry Price
The math that matters is the cost basis if assigned. Effective entry = strike − premium received. A $100 strike with $3 premium gives effective entry at $97. Compared to a market order at the current price, this is a structurally cheaper way to take exposure — paid for by accepting a defined obligation to buy.
When Cash-Secured Puts Go Wrong
The failure mode is catching falling knives. If the stock drops 30% below the strike, the put is assigned anyway — the seller is now sitting on a paper loss minus the small premium received. The premium does not protect against a structural collapse. Cash-secured puts only work if the thesis on the underlying is intact and the strike is a price the portfolio is genuinely happy to own at.
Closelook Application
The Derivatives Portfolio sells cash-secured puts as the primary entry mechanism for Rubin 100 and HALO 100 names the desk wants exposure to but considers expensive at the current price. The 80–95% cash position is partly capital allocated to back put writes — so the cash is doing two jobs at once: yielding nothing as cash, yielding premium as collateral.