Quote from rcanfiel:
intraday trading is not automatically safer. People who do this tend to load up on a lot more leverage. If someone suddenly said Pakistan and India exchanged nuclear weapons (even if untrue) for example, then the clever people long $500 daytrading margins to control a lot of eminis would be in a bloodbath. And they plan to keep doing it, day in and day out, possibly for many years. The exposure is there. And it is conceivable the brokerage would go under having a lot of these customers.
News doesn't break that way. Anyone who has been trading for years would know that. Let's say the news event you described happened above. What happens many days if not weeks ahead is the rumor that tensions will escalate. Then one day the event actually happens. Since news does NOT disseminate simulateously to all, those with "advanced" (meaning earlier knowledge) will sell first in what would be an orderly sell off in liquid markets. By the time everyone else gets it, (the johnny come lately's) that's when you get your gaps.
So since day traders are the ones taking pips/ticks/handles and their time frames being ticks to minutes, their risk of large moves is less and their size tends to be significantly smaller than a position or swing trader. The collective of which would not take out a FCM provided that exercise automatic liquidation of positions that fall below a certain threshold.
Only a few safeguards need to be in place to prevent a firm being taken out by them. With today's modern systems, it's fairly easy to implement. Especially for a futures only firm. Add in naked options and things get tricky seeing as options are relatively illiquid.
We have been in a period of relative calm. We have had burps, like the southeast asian currency/market crisis a few yeras ago. the trunami. The yellowstone caldera, arab-israeli tensions, the great depression, a dirty bomb/radiation bomb/bioterror in a western city, etc. It only takes a STORY about something to wipe out these highly leveraged day traders.
Not really so much for futures day traders. Maybe stock, option and, currency traders.
