It is Sunday here in Asia and I don't have access to data for my own work, so hoping someone can answer this question off the cuff from experience. I'm speaking of very liquid Kospi options, so please disregard commission and spread issues - I'm not talking about illiquid markets. Question is this: For very short-term, intra-day trades, is it generally more profitable (% of available margin) to simply buy options, or instead to buy a debit spread?? Buy 'em or Spread 'em?? Yes I'll do my own homework in the morning, but looking for an early read on this. Thanks.