Hi Dan -- I sometimes update 50 or more symbols, but usually only 10 to 20 or so. I seldom add a new symbol during trading hours. I have not seen a serious slowdown near the close unless the market was in "fast market" conditions. My QPfeed Real-time Plugin, as shown in AmiBroker's Plugins information screen, is version 1.0.92. My data feed comes through a Hughes satellite at about 35 to 50% of a T1 line.
Thanks, Howard On Thu, Nov 6, 2008 at 6:38 PM, monitorit <[EMAIL PROTECTED]> wrote: > Howard B - can I ask you a few questions re your experience with > qpFeed? I tried to get your attention yesterday... I've copied that > post below. > > Howard, thanks for your input re qpFeed. I don't know if you saw my > post re it in another thread - so I am appending it just below this > note. May I ask if you run qpFeed in realtime during market hours > and if you are continuously updating more than 50 symbols. If so, do > you notice the price bars are slowly coming in later than they should > (ie, near the market close they are 4-6 minutes delayed)? This is > never a problem when only 6 or so tickers are updating - just the > larger numbers. Its also not a problem after mkt close -when qpFeed > typically updates 600+ tickers (1 min db) in 10-20 minutes. > > Also, what version of the plugin are you using? My AB plugin folder > has qpfeed_ami.dll with file version 1.0.1.14 while ABs Tools>Plug- > ins shows qpFeed Real Time Data plugin 1.0.92. The qpfeed folder in > Program Files has a ddflink.dll version 1.0.0.19 in addition to the > qpfeed_ami.dll > > I checked your online info re qpFeed- for some reason I don't have > the 2nd "Quotes Plus plugin configuration screen you do - just a > screen for my id/password, choice of connection and tabs to get > commodity/index/stock symbols. > Thanks for any insights you might have. > Dan > > copy of earlier post>>>>> > Tomasz, I use qpFeed not IQfeed but have had a problem forever that > is somewhat the same. There is NO problem when just updating a few > symbols continuously-but- if I try to keep about 75-100 symbols > updating, the quotes come in slower and slower. The people at the > quote provider say they get no complaints and there is no problems > sending out the quotes. Can you try to set up a 1 minute db with > about 100 tickers, the layout has 5 windows all symbol-linked (1min, > 2min, 5min, 15min and daily). Use any simple indicator with the > price (ie 10 bar MA). Run any simple AA to cause all 100 tickers to > update. Then see how long the symbols take to get up to date and > more important, come back a few hours later and see the time of the > last bar compared to the time on your clock.. has it fallen behind? > You can just leave the original symbol displayed- no need to change > symbols after the first change after running the AA. I know we have > discussed this before- but I wonder if you have done my little > experiment yourself? > Thanks again and I remain convinced AB is the best by far. > Dan > > > --- In [email protected] <amibroker%40yahoogroups.com>, "Howard B" > <[EMAIL PROTECTED]> wrote: > > > > Hi Ken -- > > > > I primarily use Quotes Plus and like it. DTN IQ is also good, but > more > > expensive. Both have trial periods. You will be charged for the > exchange > > fees during your trial period. > > > > Thanks, > > Howard > > > > > > > > > > On Thu, Nov 6, 2008 at 5:45 PM, Ken Close <[EMAIL PROTECTED]> wrote: > > > > > I have been using QuoteTracker (1 min updates with some 75 > symbols) and > > > have never seen any delays or problems. I also have not run any > explorations > > > nor scans but just have looked at charts over bunches of > symbols. However, > > > I abhor the fact that QT, being fed from my free Fidelity.com > data stream, > > > cannot back fill if it misses even a short time much less a day > or more > > > (power outages, etc). And I have had a bunch of those recently > rendering any > > > signals based on say 5 or 10 days lookback to be worthless. > Hence, my > > > search for something with backfill capabilities. > > > > > > I have been considering subscribing to qpFeed, a somewhat new > service from > > > QuotesPlus, and then I have seen these numerous messages about > slow delivery > > > of 1 minute data from IQFeed but several msgs mentioned qpFeed. > > > > > > So, hence the subject line....what is the best VALUE for the > fastest, most > > > reliable intraday, 1 minute (I don't care about tick data and > could probably > > > get by with 5 minute data) data feed. I would like to have a > universe of > > > ETFs (maybe 100 to 125 symbols) and would like to scan for setups > and > > > buy/sell signals on 15 minute charts, maybe even 30 minute charts. > > > > > > qpFeed sounded economical (good value) but if there are major > bottlenecks, > > > then I dunno. TJ says all intraday feeds slow down, but what do > those > > > intrepid day traders use? > > > > > > Advice and suggestions, please. Thanks. > > > Ken > > > > > > > > > > >
