A follow-up action in options trading where the options trader simultaneously closes one position and opens another position of the same underlying but at a different strike price and/or expiration is known as a rolling action. The possible rolling actions include rolling up, rolling down and rolling forward.
A roll has two trades and three useful totals
Suppose an old short call was sold for $1.50 and costs $2.20 to close. Its realized P/L is −$70 per standard contract. A replacement call sells for $2.80. The roll transaction receives $60 net: $280 − $220. Total premium cash across the sequence is $210, but the replacement is still a liability.
If the new call later costs $1.00 to close, the replacement earns $180 and combined option profit is $110 before fees. The same result comes from adding every cash flow: $150 − $220 + $280 − $100. The $60 roll credit alone answers neither the realized-P/L question nor the final-return question.
Track (1) old realized P/L, (2) roll cash required or received and (3) the new position’s exposure. If stock is part of the trade, include its marked value or sale proceeds too. A roll may increase time, strike exposure or collateral requirements even while producing a credit.
Before accepting it, ask whether the replacement would be acceptable without the old position’s history. Include both closing and opening costs and preserve matched spread legs. No roll can retroactively change the price paid to close the old option.
