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Confirming your findings, I posted the following on 3/5/99 -- I have since
cancelled my BMI feed.
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BMI's Option quotes are next to worthless most of the time. Sometimes
lagging, sometimes not-- but you can't tell unless you compare it to a
better source-- Their Bid/Ask is totally unreliable.
They also removed the Contract Volume from their feed last November. They
claim that their broadcast feed is buffered and that is why it gets behind--
they also claim that Signal-Online is not buffered, but who knows?
They also told me that their Option quotes have a lower priority in their
feed because most of their customers trade Stocks.
Quote.com's R/T Option quotes are good, both for Last and Best Bid/Ask and
Size and everything is time-stamped.
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At 06:40 PM 3/23/99 +0000, you wrote:
>Several months ago while in a stupor induced by profits from trading the
>OEX options I came to believe that the option market was mine. I traded
>larger quantities and watched as my BMI data feed told me the options
>didn't even go against me as the market moved against me. When I went
>to exit the market, several times, I got crushed on the current bid
>supplied by etrade. It took me more than a couple of days to realize my
>data feed was bad. I trade based on what the options are doing in
>addition to the OEX. Well, I lost all my profits for the last 3 or 4
>months, about mid five figures, a fortune to me. I called Bill Ingraham
>at PC Quote and set up an internet feed in a little browser window
>called PCQuotes 6.0 or something. Watching BMI update TS 4 and PCQuote
>in the window I found BMI wasn't updating at the opening and during fast
>markets, on the options. Not last trade let alone the bid and ask.
>They denied it. Later I found out BMI can't display a proper quote on
>bid and ask if the spread is over 15/16's. Now they just add 15/16's to
>the bid when this happens. I see it all day. PCQuote updates from 1 to
>10 seconds faster than BMI on all quotes most of the time from my casual
>observations.
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