For people who are selling off half their shares, or considering doing so, as a deleveraging mechanism... Let us consider four options:
A) A person who sells half their shares at $490
B) A person who buys $400 Jun protective puts at an SP of $490 ($26x100), paid for by selling stock (5,3 shares per 100 shares covered)
C) #2, except that the puts are paid for by selling an equivalent number of $620 Jun covered calls.
D) No deleveraging
Let's check out your assets at some various SP scenarios at the end of June, for a total original number of shares X.
$0:
* A) $245 * X
* B) $379 * X
* C) $400 * X
* D) $0 * X
$100:
* A) $295 * X
* B) $379 * X
* C) $400 * X
* D) $100 * X
$200:
* A) $345 * X
* B) $379 * X
* C) $400 * X
* D) $200 * X
$300:
* A) $395 * X
* B) $379 * X
* C) $400 * X
* D) $300 * X
$400:
* A) $445 * X
* B) $379 * X
* C) $400 * X
* D) $400 * X
$500:
* A) $495 * X
* B) $474 * X
* C) $500 * X
* D) $500 * X
$600:
* A) $545 * X
* B) $568 * X
* C) $600 * X
* D) $600 * X
$700:
* A) $595 * X
* B) $663 * X
* C) $620 * X
* D) $700 * X
$800:
* A) $645 * X
* B) $758 * X
* C) $620 * X
* D) $800 * X
$900:
* A) $695 * X
* B) $852 * X
* C) $620 * X
* D) $900 * X
$1000:
* A) $745 * X
* B) $947 * X
* C) $620 * X
* D) $1000 * X
It of course gets more complicated when you're talking about scenarios where you'd buy back before expiry, but this complexity affects all choices. The real question, for people considering selling off shares as a means of deleveraging... do the expected returns for this strategy at different SPs really reflect your assumed probabilities for various events?
Remember that if your concerns are only about short-term events, protective puts get a lot cheaper.
ED: Minor error in the above... I forgot to account for the fact that in B), you have fewer shares that you need to protect due to selling some to pay for the puts, so the returns for (B) are slightly higher than listed above.