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Can I convert spread option into regular call or put?
Just so I'm clear- the end result is a long call, and you think the stock is going up. There is nothing wrong with that fundamentally.  Be aware though: That's a negative theta trade. This means if your stock doesn't increase in price during the remaining time to expiration of your call option, the option will lose some of its value every day. It may still lose some of its value every day, depending on how much the stock price increases. The value of the call option just goes down and down as it approaches maturity, even if the stock price stays about the same. Being long a call (or a put) is a tough way to make money in the options market.  I would suggest using an out-of-the-money butterfly spread. The potential returns are a bit less. However, this is a cheap positive theta trade so you avoid time decay on the value of the option.