Thanks for that explanation, I'm doing some reading on options now so I can hopefully understand it better. In your scenario above, if the stock drops to 135-140, what are the puts worth?
On intrinsic value alone (there is also premium):
If the price drops to $140, the 142 put is worth $2, the 130 is $0 (so 3 contracts is $600)
If the price drops to $135, the 142 put is worth $7, the 130 is $0 (so 3 contracts is $2100)
If the price drops to $130, the 142 put is worth $12, the 130 is $0 (so 3 contracts is $3600)
Your stock value would drop the same, so the one offsets the other.
On further drop:
If the price drops to $120, the 142 put is worth $22, the 130 is $10 (so 3 contracts is $6600 - $3000 = $3600).
The $100's would be mostly premium:
If the price rapidly drops to $120, the $100 would be worth ~$1 (so 10 contracts is $1000)
If the price rapidly drops to $110, the $100 would be worth ~$3 (so 10 contracts is $3000)
If the price rapidly drops to $100, the $100 would be worth ~$8 (so 10 contracts is $8000)
If the price rapidly drops to $90, the $100 would be worth ~$15 (so 10 contracts is $15000)
But keep in mind the $1500 you pay for the setup. You would be out that permanently unless the price drops below $90.