1. At the close yesterday IBM was down $2.64 per share from the day before. Also, at the close an IBM 138 call was priced yesterday at $.98 bid, $1.01 ask, with a delta of.36. This morning, IBM was up $.50 per share and the option is priced at $1.15 bid, $1.18 ask with a delta of .51. What was the option's gamma if the theta was -.05?
2. Bull call spreads and bull put spreads are both credit spreads. T/F
3. The closer the options get to expiration, the more the deltas tend to approach 0 and +/-1.00, but only ATM gamma increases as expiry approaches. T/F