Quote from RichardRimes:
edit...the entire thread of coach's "spx credit spread trading" was that credit spreads where spreads were "sold" and "credit" was received, not bought and paid for...
There has never been any disagreement as to what constitutes buying a debit spread.
The problem occurs when two spreads are traded as part of one position - the iron condor.
I go back to basics: The condor spread is a debit spread. You buy one call spread (or put) and sell another call spread, with higher strikes and a lower price. Thus, you pay. This position wins when the stock remains between the strikes.
The term 'iron' designates an equivalent position. the iron condor behaves exactly like the condor. But the specific options chose are different - but equivalent. this spread also wins when the stock remains between the strikes.
Thus, long a condor is the same as long an iron condor. That's my definition. I've said that before and the disagreement was reasonable and logical. I understand why others disagree with my definition. Sadly there is no formal authority to decide this issue.
IB and TOS disagree and that's part of the problem for everyone.
Mark