Protective puts: insurance cost, floors and time decay

Count the shares, contract deliverable and cash paid

Assume a fully paid stock purchase and an unadjusted, physically settled equity put expiring in 30 days. One contract delivers 100 shares, so one long put matches 100 owned shares. All prices and fees here are hypothetical USD amounts, not market quotes. The $4 fee assumption covers the entire modeled position lifecycle; dividends, taxes and financing are excluded.

• For N shares, q puts and M shares per contract, full matching requires N = q × M. Verify the actual deliverable and premium multiplier; corporate-action adjustments can break the usual 100-share assumption.
• With 150 shares and one standard put, 50 shares remain unprotected. With two puts and 150 shares, 50 shares of option exposure exceed the holding; exercising both requires additional delivery arrangements.
• An index put on a stock portfolio is a different hedge. Correlation and settlement differences prevent the exact share-for-share floor used here.

Separate the expiry asset floor from net profit

Let ST be the stock price at expiration, K the put strike, S0 the chosen stock cost basis, p the premium per share, and F total fees. For N = q × M matching shares, stock P&L is N × (ST - S0). Put P&L is q × M × [max(K - ST, 0) - p]. Combined net P&L is N × [max(ST, K) - S0 - p] - F.

• At or below $68, the $6,800 combined value is compared with $7,444 committed. Calling $68 a guaranteed net asset price ignores $2.40 per share of premium and the fee.
• For already-owned shares, distinguish historical purchase cost from value when the hedge begins. If these 100 shares originally cost $40 each but are worth $72 when the put is bought, the same $6,800 floor implies $2,556 profit versus historical cost after the $244 hedge expense, but a $644 shortfall versus current stock value plus that expense.
• If K exceeds S0 + p + F / N, the minimum P&L is positive relative to that basis and there is no losing expiry price in this simplified model. If they are equal, every price at or below K breaks even. Do not report a breakeven below the strike as a crossing of the flat payoff line.

Reconcile both legs through a fall, a flat market and a rise

The put P&L column includes the original $240 premium. The final column deducts $4 in fees once. These are expiration valuations; before expiration, the put can also have time value. The zero-price row is an algebraic boundary, not a promise that a halted or worthless stock can be sold in the market.

• At ST = $50, the 68 put has $1,800 intrinsic value. Valuing the stock at $5,000 plus that $1,800 gives $6,800. Alternatively, exercising the physical put delivers the 100 shares for $6,800 cash. These are two descriptions of the same outcome; do not add $1,800 again to the exercise proceeds.
• At ST = $85, the put expires worthless and stock gains pay for its cost. The strategy earns $1,056 after the stated fee, versus $1,300 on stock alone before any stock-only fees. No short call caps the remaining upside.
• A worse put fill changes the result immediately. Paying $2.60 instead of $2.40 increases the outlay and maximum loss by $20 and moves breakeven to $74.64. Use actual fills or executable-side quotes, not an assumed midpoint fill.

A 30-day premium buys 30 days of protection

Time decay reduces a long put's time value with other pricing inputs held constant. It is not a fixed daily charge: stock movements and implied volatility can outweigh it. OIC notes that the protection ends at expiration. Evaluate both the event you want covered and the cost of keeping the hedge beyond that event.

• The example premium is $240 / $7,200 = 3.33% of the stock value for this 30-day interval, before fees. This is a hedge-cost ratio, not an expected return or a quoted annual insurance rate.
• If the stock remains at $72 and the put expires worthless, the period costs $244 including fees. Repeating an identical $240 premium and $4 fee three times would cost $732, or 10.17% of the original $7,200. Future premiums and available strikes will differ; this is a budget sensitivity, not a renewal quote.
• If the put expires while the stock is $72 and the shares are retained, a subsequent fall to $50 leaves shares worth $5,000. Against the original $7,444 outlay, net P&L is now -$2,444. The former -$644 floor applied at the hedge expiration, not indefinitely.
• Rolling means closing or settling the old put and purchasing another. Record both transactions, any protection gap and the new strike and expiry. Selling the old put without replacing it ends the hedge immediately.

Exercise and settlement determine what remains in the account

A long put holder controls exercise; there is no short-option assignment obligation in this two-leg position. American-style puts can be exercised before expiration, while European-style exercise is restricted to expiration. Selling a put to close is different from exercising it. Check the exact contract and broker procedures before relying on delivery.

• Physical exercise sells the deliverable shares at K. Cash-settled options instead pay a settlement difference and do not dispose of the shares; a different underlying or settlement reference can create hedge mismatch.
• Before exercising early, compare the put bid with intrinsic value after costs. Exercise gives up any remaining time value. An executable closing sale may preserve it, but liquidity and bid-ask spreads matter.
• Confirm broker exercise cutoffs, exercise-by-exception handling, share availability and any fees. Near the strike, do not infer the final share balance solely from a payoff chart or assume the broker will follow your intended instructions.
• If the put is exercised and the matching shares are delivered, the stock position ends. If it is sold or expires and shares remain, the account is long unprotected stock. Reconcile the final stock quantity and option status.

A collar pays for part of the put by selling upside

A protective put has two legs: long stock and long put. A collar adds a short call. Its premium can offset part or all of the put premium, but introduces a ceiling on upside and possible call assignment. A zero net option premium does not mean zero stock risk, zero transaction costs or permanent protection.

Model the matched position in TradingView Options

TradingView's Options strategy builder supports underlying-symbol legs alongside puts and calls. Create a custom strategy with a long underlying leg and one long 68 put, using the same stock. Enter stock price 72 and put price 2.40, select the intended expiry and match the size to 100 shares per standard contract.

• Verify size units and the contract multiplier before comparing the graph. At expiration, check gross combined values of $6,800 below the strike and $8,500 at ST = $85. If viewing P&L before fees, the corresponding results are -$640 and +$1,060.
• The builder permits bid, ask, midpoint and theoretical price inputs. Label the selected basis, retain quote timestamps, and add any excluded fees separately. A modeled curve does not establish an executable purchase or a historical strategy return.
• If the exact underlying, expiry or deliverable is unavailable, keep this as a hypothetical calculation. Substituting another option does not preserve the stated floor automatically.

Check available contracts and preserve the hedge decision

Pineify AI Stocks & Options Picker has an options-chain view organized by expiration and strike, with call and put bid/ask fields where supplied. Use the available chain to inspect candidate inputs, then verify contract terms and current executable prices with the broker or exchange. Missing data is not a zero premium.

• In Trading Journal plan notes, record share count, stock purchase basis and current value separately, put identifier, strike, expiration, multiplier, premium source, quote time, fees and the intended end-of-hedge action.
• Use review notes for actual fills, renewal spending, exercise instructions and final holdings. Keep the modeled $644 loss limit separate from realized P&L and from any losses after expiration.
• The chain and notes support research and recordkeeping. They do not automatically execute the hedge, reconcile physical exercise or backtest historical stock-plus-option fills.