Fischer analyzes two covered strategies: the covered call and the covered put. Both collect option premium as income against a stock position — but their risk profiles differ, and Fischer quantifies the probability, breakeven, and exposure on each.
A two-leg position that profits when the underlying stock declines or stays below a defined breakeven. You collect premium by selling a put option while holding a short position in the stock.
Sell shares of the underlying short. This establishes your directional position and provides the "cover" for the put you sell. Your broker holds the short position as collateral.
Simultaneously sell an out-of-the-money put at a strike below the current price. You collect premium immediately. This is theta income — time decay working in your favor every day.
The put is assigned — you buy shares at the strike to close your short. You profit from the decline plus you keep the full premium. Max profit = premium + (entry − strike) × shares.
The put expires worthless, but the short-stock leg loses as the stock climbs — and because it is short stock, that loss has no fixed ceiling if the stock keeps rallying. The premium raises your breakeven; it does not cap the risk. This is why the covered put carries more tail risk than the covered call. Fischer quantifies that exposure at entry — it does not remove it.
Profit is capped when the stock falls below the strike. The loss has no fixed ceiling as the stock rises above breakeven — the short-stock leg keeps losing the higher it goes.
The mirror image of a covered put. You own the stock long and sell a call option above the current price. Premium collected provides income and lowers your effective cost basis.
Purchase shares of the underlying. This is your long position and provides the "cover" for the call you sell. You benefit from any price appreciation up to the strike.
Sell an out-of-the-money call at a strike above the current price. You collect premium immediately. If the stock stays below the strike, the option expires and you keep both the shares and the premium.
The call is assigned — you sell shares at the strike. You profit from the appreciation plus you keep the full premium. Max profit = premium + (strike − entry) × shares.
The call expires worthless and you keep the premium. Your long stock position loses, but the premium shifts your breakeven lower. That loss is large but bounded — a stock can only fall to zero — so the covered call has a bounded-loss profile, while the covered put does not.
Profit is capped at max profit when stock rises to strike. Loss increases as stock falls below breakeven.
| Covered Put | Covered Call | |
|---|---|---|
| Stock Position | Short shares | Long shares |
| Option Sold | Put (below spot) | Call (above spot) |
| Profits When | Stock falls or stays flat | Stock rises or stays flat |
| Max Profit | Premium + (entry − strike) × shares | Premium + (strike − entry) × shares |
| Risk | Stock rises sharply above breakeven | Stock falls sharply below breakeven |
| Breakeven | Entry + premium per share | Entry − premium per share |
| Income Source | Theta decay on sold put | Theta decay on sold call |
| Ideal DTE Range | 0–14 days | 0–14 days |
Time decay is non-linear. An option loses more value per day as it approaches expiration. Short-dated options deliver the highest theta-per-day of risk exposure.
Illustrative figures for a typical $500K notional position. Actual values vary by underlying, implied volatility, and moneyness.
Short-dated positions expire in days, not weeks. Capital is recycled quickly, allowing more frequent deployment across opportunities as market conditions change.
A 3-day position has less exposure to overnight gaps, earnings surprises, and macro events than a 30-day position. The shorter the duration, the more predictable the outcome.
Every position Fischer identifies includes a computed probability of profit derived from Black-Scholes. You see the exact likelihood of a profitable outcome before committing capital. Fischer scans 19 underlyings across 7 strikes each, evaluating over 600 combinations to surface the positions where the mathematics favor the seller.
View actual scan reports and drilldown analyses, or learn how the quantitative engine selects positions.
Sample Reports Methodology