Formula to calculate cost of closing a call?

W

wxytrader

If you close a short call to keep your shares upside potential, the true cost of keeping your shares is the pnl of the short call?

So if I sold a short call @ .69 and closing it @ 1.54 = -0.85 * 1500 = -$1278

I can't get to that number if I work through it.

Premium received
$1,035.00 (.69*1500)

Cost to close short call & keep stock (1.54*1500)
$2,313.50

Net (1035-2313.50)
-$1,278.50

Stock gains since opening the short call (18.02 - 16.90) - net loss.
$1,680.00 - $1278 = 402

Is this arbitrage? :)



Its pretty close if I calc having shares called away at strike versus at market:

1500*16.50=24750
1500*18.02=27030
=-2280 + 1035= -$1245.00
 
i called this is bs. what if the stock comes down again? if you knew the stock would goes up, why would you sell the calls, taking lose for no reason.
 
mervyn said:
i called this is bs. what if the stock comes down again? if you knew the stock would goes up, why would you sell the calls, taking lose for no reason.
More...

lol what? I am just referring to how the math doesn't make sense or does it?
 
AKJ said:
Nah, I understood everything you shared. Your numbers are straightforward arithmetic. Your commentary and conclusions around those numbers are asinine.
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Well the "straight forward arithmetic" don't add up. That is the commentary lol...


As of the close yesterday.

Premium received
$1,035.00

Cost to close short call & keep stock
$735.00

Net
$300.00


Stock gains since opening the position
$135.00 (16.99-16.90=.09)*1500

Pnl if I close the position (Net from closing short call + gains from stock I get to keep)
$435.00

___________________________________________________________

If I compare that to letting the short call get exercised

Contract value
$24,750.00

Market value
$25,485.00

Contract slippage
$-735 (same as the cost to close the short call)

I add in the premium I received ($-735+$1035)=$300.00
BUT I am losing out on the $135.00 gain from the stock!
 
Last edited:
It's clear you don't understand basic arithmetic around calculating PnL. I think that is all I have to say on the matter.
 
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