Covered Put

What is a covered put?

A covered put is an options strategy that sells a put against a matching short-stock position. The premium adds to the short sale's result, and put assignment buys back the shares at the strike to close the short. Profit is capped below the strike, while losses on a rising stock have no upper limit.

One standard put matches 100 short shares. The strike can be below, equal to, or above the short-sale price. Select it as the share-repurchase price you want to evaluate. The opening put premium contributes to the combined trade’s result.

How to calculate covered put profit, loss, and breakeven

Let P be the short-sale price, K the put strike, c the premium per share, and S the expiration stock price. Before carrying costs, profit per share equals P minus S plus c minus the put’s intrinsic value.

At or below K, profit is P minus K plus c. Every additional dollar earned by the short shares below the strike is offset by the short put. Above K, profit is P minus S plus c.

The example shorts 100 shares at $50 and sells one 47 put for $1.60. Maximum expiration profit is $460 at every stock price of $47 or lower. Breakeven before carrying costs is $51.60. At $58, the position loses $640.

Above breakeven, each $1 stock rise adds $100 to the loss. The stock price has no upper boundary, so model the full rising-price exposure when selecting position size.

Covered put carrying costs: borrow fees and dividends

Track borrow fees, dividend payments, and interest credits with both trading legs. Borrow charges follow the stock-loan rate and the broker’s daily valuation convention. Interest credits follow the account’s short-proceeds arrangement.

For a constant $5,000 balance, a 3% annual borrow charge for 30 days is about $12. Add the example’s $25 dividend payment to arrive at approximately $37 of carrying costs and $423 maximum net profit. Reconcile the final amount with the actual daily balances and account statement.

For an ordinary cash dividend, the short position’s dividend liability follows the ex-dividend date. The declaration date announces the distribution; it does not by itself establish that the short holder owes it.

How to choose covered put strikes and quantity

A trader with an existing stock short uses the put strike to define a repurchase level. Selling the put collects premium and caps additional expiration profit below that strike.

For partial coverage, match the option quantity to the shares assigned to that objective. Two standard puts against 500 short shares cover 200 shares through assignment and leave 300 shares with their original short-stock exposure.

Use price structure, put walls, and options flow to evaluate candidate strikes. Compare the complete trade’s profit ceiling, breakeven, rising-price losses, and buying-power requirement. The options profit calculator compares the repurchase level, profit ceiling, and full stock-price curve for each candidate.

Managing a covered put and assignment

To close the position, buy back the put and the short shares. Put assignment purchases shares at the strike, closing the matching stock short. Track the option and stock confirmations together, including carrying costs and any established dividend liability.

Covered puts in options flow

A put sale inside a covered-put package belongs to a bearish stock position. Inspect the associated stock and other option legs before interpreting that print’s direction.

Covered put vs a short call at the same strike

Compare the covered put with a short call at the same strike using actual quotes and account requirements. Their expiration payoff shapes match; the entry prices and financing determine their complete economics.

Risks and limitations of covered puts

• Set the exit for a rally before you enter. Above $51.60 each $1 rise costs $100, and the stock price has no upper limit.
• Net the carry out of the best case. Profit is capped at $460 at or below $47, and borrow fees and the dividend cut that to roughly $423 without limiting the worst case.
• Hold buying power for rising margin. The short stock’s maintenance margin rises with the price: $1,500 at entry in the example and $1,740 if the stock trades to $58.
• Plan for early assignment on the short put. The American-style short put can be assigned early, which closes the short stock before the planned exit.
• Track implied volatility while the put is open. The short put has negative vega, so a rise in implied volatility raises the cost to buy it back even if the stock has not moved.

Bottom line

A covered put sets the buyback price on a short at the 47 strike, and the $1.60 premium pads the trade until then. Size it for the open-ended loss on a rally, and track borrow, the $0.25 dividend, and margin beside the option.