Buy call on a stock that you expect to rise in price
Buying ITM call is better if stock will rise modestly
OTM call is better for larger stock moves
Time premium is highest for at the money call. Lowest for deep in the money/ out of money
Rate of time decay accelerates as expiration approaches
Buy higher delta calls for shorter timeframe :
Day trading ~ 0.90
1-2 weeks ~ 0.80
Up to couple months ~ 0.50
When you have unrealized profit
Do nothing - riskiest, might make more profit, might turn worthless by expiration
Sell the call - safest, lock in your profit. Best if stock might fall back down.
Roll up - sell the current call, buy cheaper higher strike calls preferably after taking out the original investment. Highest profit if stock keeps rising, worst case 0 profit if stock doesn’t move or falls
Bull spread - sell OTM call against the owned call, preferably with higher premium than original call. Profit if stock rises or stays same. Best if stock doesnt move
When you have unrealized loss
Consider rolling down and creating a bull spread. Sell the original call plus one more and use the proceeds to buy a lower strike call. This will require a smaller rebound in the stock to break even or make small profit than the original call. It will reduce the profit potential from unlimited since any gain in held long call will be offset by the sold short call.
Calendar spread: sell a near term call with same strike as one help. Idea is, the short term call will expire worthless thereby reducing the overall loss. Risky, if the stock rallies before the near term expiry, this would result in both positions being in loss.