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  1. M

    Question about theta in american and european options?

    As pointed out above, it's caused by the fact that you cannot exercise a European option prior to expiration. The minimum value of a European-style put is equal to: PV(X)-S, where PV(X) is the present value of the strike S is the current underlying price The more time to expiry the...
  2. M

    weekly options

    I suggest you ask etrade whether they do offer them or not. Otherwise, thinkorswim offers them as well.
  3. M

    advantages portfolio margin offer someone who trades mainly credit vertical spreads

    You can see the margin comparison in the link provided by weewilly. Also you can see what the margin requirement will be under PM for any position you like by visiting this page and clicking on "Launch the online position editor" button. towards the bottom of the page. It's not easy to find the...
  4. M

    advantages portfolio margin offer someone who trades mainly credit vertical spreads

    The margin under PM on an iron condor is less than 1/3 that of the Reg T., so there is quite a bit of benefit. I do agree though that a person should not leverage up too much.
  5. M

    (almost) riskless strategy ?

    No such thing as free money! Think otherwise and you are setting yourself up for a very nasty surprise one day.
  6. M

    Margin calculation

    Unless you are on Portfolio Margining the short call would be considered naked and thus would carry the margin requirement of a naked short call as it expires after the long.
  7. M

    Noob question about interest rates and options?

    1. The forward price has two components - spot price and cost of carry (cost of carry consists of carrying costs less any income received by holding the underlying asset). When you enter into a forward contract to buy some stock at a future date then essentially you are postponing the payment...
  8. M

    (almost) riskless strategy ?

    This is a high probability strategy, but it's far from "almost" risk free. It's called collecting pennies in front of a steamroller. It works until it doesn't and the loss wipes out months if not years of profits.
  9. M

    Long more contracts than short

    There is no right or wrong way of doing this. Some people buy further OTM, others buy more contracts at the same strikes, yet others may do a combination of both. It's up to you to decide which method is more comfortable for you, and the best way to find out is to try it yourself, either with...
  10. M

    FOREX related option

    They are not hard to close if you are willing to pay the full spread, which means significant slippage.
  11. M

    Deep-ITM covered calls

    On a side note, if you are planning on buying the stock just so you can do a covered call then consider selling a put instead (e.g rather than buying the stock and selling a 5 call just sell a 5 put). It's exactly the same payoff with half the costs.
  12. M

    ^RUT Cash settled Index option question

    First of all, cash indices close at 4pm, while the options trade till 4:15, so that 610.96 doesn't reflect the slight drop in the futures after 4:00 while the options do reflect it. It doesn't really look all that weird. Just look at the SPX options for example. SPX closed at 1075.63, the...
  13. M

    ^RUT Cash settled Index option question

    The second part of the text regarding the calculation of the settlement price in the link is wrong! Here's the text from CBOE's website, contract specifications for RUT options: "Exercise will result in delivery of cash on the business day following expiration. The exercise settlement...
  14. M

    Deep-ITM covered calls

    Your risk is that the stock drops to zero (worst case). If the stock drops to zero then you lost 690 on the shares and collected 320 on the call, so your net loss is 370.
  15. M

    Help with GOOG IV and pricing

    Yes, there is a factor in B-S to account for supply/demand. It's implied volatility. If the supply is greater than demand then the option price is pushed down and so is the implied volatility (assuming everything else stays the same). In other words, implied volatility is nothing more than a...
  16. M

    Help with GOOG IV and pricing

    Here's what I see in time&sales. @ 2:20 the bid was 4.20 (IV around 30%). @ 2:22 there were 2 trades totalling 100 contracts @ 4.17, and then several more for another 50 cons in total @ 4.18, with the market being 4.10 bid at 4.20. @ 2:35 there were several trades totalling 184 cons @...
  17. M

    Options delta

    Delta of 1 means that for each point move in the underlyling the option moves by 1 point.
  18. M

    equations for neutralizing greeks

    It's a simultanous equations problem.
  19. M

    newbie question

    Options on currency futures.
  20. M

    Does IB offer weekly options?

    What pilot program are you referring to? Weekly options have been available for a long time now. I'm sure IB offers them as well (I don't use IB), you probably just don't know how to get to them or cannot see them.
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