[TheOptionClub.com] Re: TOS analyzer

 

They didn't specify when exactly. I don't know since when they were aware of this problem? especially since the analyzer was there for years. Sure you can workaround that by simulated equivalent trades, but imagine if you have complex positions with different months including leaps,tens of calls and puts.Isn't that funny where the simulated trades work fine but the actual don't.
I wonder if those using OptionVue have similar problem?

Labib

--- In OptionClub@yahoogroups.com, Adam Green <adam.cell.phone@...> wrote:
>
> So the workaround is to analyze a simulated equivalent position?
> You'd think the first step for the developers would be to simply capture the
> event of a position adjustment and send an alert to the customer (and to
> support) so there's no risk of traders losing money because of bugs in the
> platform. Then they can take their time to actually fix the bug.
> Did tos send you a trouble ticket or some way for you to track and be
> notified of when the bug is fixed and rolled out in a given release?
>
>
> ps. Thank you for taking the time to share the warning.
>
> On Fri, Mar 19, 2010 at 10:43 AM, labib52 <ldvn@...> wrote:
>
> >
> >
> >
> > I'm sure that some of you rely on TOS analyzer for your trading.
> > I personally relied heavily on the analyzer every time I start a position;
> > rely on it for adjusting, managing, watching the Greeks and watching the
> > profit loss in my portfolio, till recently I realized a flaw in the analyzer
> > when you adjust an existing position. It happened a month ago when I
> > adjusted a butterfly on the SPX, and it happened this month when I adjusted
> > a June put butterfly (still holding that position). To illustrate what I
> > mean here is part of the email I wrote to TOS:
> > I think you misunderstood my question or may be I was not clear in my
> > question. I am not talking about calendars or rolling a position. I'm
> > talking about adjusting a position by closing part of it. I'm talking about
> > the following:
> >
> > 1) On January 21, 2010, I bought a June 110/95/80 Put butterfly for 2.45. I
> > check the analyzer everything is fine. Margin required $245, maximum loss
> > 245 to the upside and to the downside typical butterfly risk reward. No
> > problems every thing as it is supposed to be.
> >
> > #235452087, BOT +1 BUTTERFLY SPY 100 JUN 10 110/95/80 PUT @2.45 ISE, SPY
> > MARK 111.86, SPY IMPL VOL 22.04%, ACCOUNT 86****67
> >
> > 2) On March 1, I adjusted the above butterfly by buying June 111/110 put
> > vertical for .41.
> >
> >
> > #248402491, BOT +1 VERTICAL SPY 100 JUN 10 111/110 PUT @.41 ISE, SPY MARK
> > 111.91, SPY IMPL VOL 19.52%, ACCOUNT 86****67.
> >
> > After the adjustment my current position (which I'm still holding) should
> > be June 111/95/80 uneven put butterfly for the cost of 2.86. So my margin
> > should be the cost 286. My maximum loss should be $286 to the upside and 86
> > to the downside. That's what I expected the analyzer to reflect and show.
> > Instead:
> >
> > 3) The analyzer currently is showing my position with the following
> > incorrect parameters:
> > As of closing of today 3/11/10 the spy closed at 115.45
> >
> > a) My maximum loss to the upside is 170 (instead of 286) and my maximum
> > loss to the downside 70, (instead of 86)
> > b) Currently the analyzer is showing P/L Open positive 29.63 and it should
> > be negative
> > -56.32
> > c) Evidently all the Greeks are incorrect too.
> > d) The analyzer is showing margin required is 0 where it should show the
> > cost 286.
> >
> > Now if anytime in the future I decide to make adjustment to the above
> > position and I rely on the analyzer I will be relying on wrong Parameters
> > and wind up making wrong decisions because I relied on inaccurate facts.
> > In this case it is only 1 contract and it is easy to calculate but I'm
> > afraid to create complex positions and decisions based on wrong information.
> >
> > TOS informed me that they are aware of this issue and their developers are
> > working to resolve it very soon. Here is part of the email reply from Tom
> > Preston:
> >
> > "Hi Labib,
> >
> > Yes, this is an issue for many of our customers and our developers are
> > working on a way to resolve this issue.
> >
> > Thank you for your patience.
> >
> > Tom Preston
> > thinkorswim, Inc."
> >
> > I want to be clear that this happens only when you adjust an existing
> > position by closing part of it and opening other part like the above
> > example.
> >
> > Thank you,
> > Labib Imtanes
> >
> >
> >
>
>
>
> --
> Adam
>

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