i mostly trade stocks (long & short). but i'm thinking whether it's a good idea to trade credit spread as well, in addition to stocks. the major benefit is that i can profit from option time decay if the stock doesn't move. i've done a test trade on Monday. i've sold a 150/155 call spread on OIH, about 11% yield on margin. but yesterday's move caused me to take it off, ended up losing 9% on margin. That turned out to be the right call. i bought back the spread with OIH @145, and OIH continued to move higher to 147. i start to wonder whether it makes sense to go for the time decay. If I want to reward:risk ratio to be at least 1:1, the negative convexity will cause me to have a stop tighter than the upside target, which means i'll have a higher chance getting stopped out of the trade. i'd like to hear your thoughts, if you've been actively trading both, or you've tried both but prefer one to the other.