Quote from RichardRimes:
not exactly accurate as the major diff is that future options are electronic (traded) vs spx pit traded and span...basic premise is the same....
I think you're thinking of the E-mini Richard - that is exclusively traded electronically, as are the E-mini futures. But overall, options on futures are actually an anachronism in that most of the volume in most contracts is still pit traded. In the crude options for example pit volume dwarfs electronic volume, same in the grain options.
Here are a few important ways that stock options differ from options on futures.
1. Most important, in futures options you can short the underlying as easily as go long, as much as you want, with no borrowing issues etc. That changes the whole game.
2. Risk margining in futures options.
3. No cost of carry of the underlying in futures options, as you can hold your margin in T-bills.
4. No dividends to worry about in futures options.
5. Futures options have a single formal settlement price at the end of the day.
6. Insider trading and knowledge is a big consideration in stock and not in futures.
7. No mergers, corporate takeovers, bankruptcies or other such events in futures.
Having traded futures options for well over two decades and having just in the last year or so started trading stock options, I may be biased. But it seems to me that the world of stock options (and stocks) is shadowy and opaque compared to the futures world, which is incredibly straightforward and transparent by comparison. In stocks you have orders routed to different exchanges with firms paying for order flow - no chance of abuse there! There's the whole "naked short" business where 1% of trades fail to clear and when you ask the SEC why all they can say is "I dunno."
There's talk about merging the SEC and CFTC but the cultures are so different - I'm skeptical.
PS I'm coming in late in this thread so if this is all irrelevant to the discussion then - never mind!