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system
what are my risks of early assignment?
user
one reason this happens is due to dividends. if the dividend amount is greater than the time value left on a call, it can make sense to exercise early to collect the dividend.  deep in the money puts also may get exercised early. there's usually little premium on a deep in the money put and the spread on the bid-ask might erase what little premium there is. if you have stock worth $5,000 but own puts on them that will give you $50,000 upon exercise (and no spread to worry about), the interest you can gain on the $50k might be more than the little to no time value left on the position... even at several weeks to expiration.
assistant