booker - I'm perfectly calm, and fine with being corrected if I'm wrong. I'm trying to have a discussion - apparently you interpreted it as a defense.
--- In [email protected], "booker_1324" <booker_1...@...> wrote: > > droskill, > > calm down. I was just pointing out the erroneous statement that you made > about Telechart. Do you really believe that they would go to all the trouble > of adjusting the data for splits and dividends if it was not beneficial. That > was the main reason that I picked Telechart for backtesting data. If I wish > to use DTN IQFeed for daily backtesting, I have to manually adjust for splits. > > I am not trying to sell you on Telechart, use what you like. I am not sure if > any other daily feed has their data already adjusted for splits and dividends > or not, but I do know that quite a few do not. > > You bring up several points but I consider those trivial to having dividend > gaps. > > And no I do not use stops. I have found thru backtesting that stops will > choke most of the profits from all of the systems that I use. I let the > system take me out of a trade. > > Peace > > --- In [email protected], "droskill" <droskill@> wrote: > > > > Yes, but the trades would be very different as well - you're assuming > > you're not trading with a stop. If you had a stop in place, you would be > > out of the position, but have $6 in dividend. > > > > In the Telechart case, you'd remain long the position. So your approach > > would work fine as long as you're not trading with a stop. > > > > You're also assuming, in that approach, that the dividend is reinvested, > > which may or may not be the case. So a more accurate picture is that you > > lost $6 on the stock, and gained $6 in your cash account, which isn't > > accounted for in the backtest either. > > > > In my opinion, the backtest should accurately represent the price - and > > then calculate the dividend separately. > > > > --- In [email protected], "booker_1324" <booker_1324@> wrote: > > > > > > Yes very different results indeed. In reality if you were long DUG and > > > the next day the price fell $6 and you were paid $6 per share in your > > > account, you lost nothing, which is what happened to owners of DUG. If > > > the data showed a $6 drop, then the backtest is flawed. > > > > > > --- In [email protected], "droskill" <droskill@> wrote: > > > > > > > > Telechart smoothed the data and the dividend, and the price change, > > > > does not show up. Now imagine you had a stop in place under DUG at 3%. > > > > In the backtest, you remain long the stock. In reality, you're > > > > stopped out. Very different results. > > > > > > > > --- In [email protected], "booker_1324" <booker_1324@> wrote: > > > > > > > > > > > > > > > droskill, > > > > > > > > > > I wish to address your statement on Telechart about "Major problem - > > > > > the API to access the data via AB doesn't adjust for splits or > > > > > dividends. This basically, from my point of view, makes it useless > > > > > for backtesting." > > > > > > > > > > Telechart already has all of it's data adjusted so there is no need > > > > > for AB to adjust for splits or dividends. > > > > > > > > > > For example, take symbol DUG which is an ultra-short oil & gas fund. > > > > > During Q4 of 2008 this fund had a remarkable net income result due to > > > > > investments internal to the fund. On Dec 22 it was trading about > > > > > $35, but after a $6 dividend payout the next day it opened around > > > > > $29, a massive change. You can verify this by looking at historical > > > > > charts at your favorite internet stock quote site, many of which show > > > > > unadjusted data. But Telechart data has been backwards adjusted for > > > > > this change, so the data is smooth all the way back in time, and you > > > > > won't see a big price change when a big payout occurs. It may take a > > > > > week or so for your fund data to be adjusted following a payout, but > > > > > they will get it done. Take a look at DUG in TeleChart at the end of > > > > > December 08, and you'll see no $6 gap down. > > > > > > > > > > On the contrary, I find Telechart data excellent and have used it for > > > > > daily backtesting for several years along with DTN IQfeed as a > > > > > complement for intraday data. > > > > > > > > > > --- In [email protected], "droskill" <droskill@> wrote: > > > > > > > > > > > > I've been spending a bit more time with Quotes Plus - pretty good > > > > > > data feed, but there are issues: > > > > > > > > > > > > - No lists of the stocks making up S&P500 or other key indices > > > > > > (they do have Nasdaq and NYSE). This means if you use the S&P, for > > > > > > instance, for looking % of stocks above a moving average, you're > > > > > > going to have to manage the lists yourself. > > > > > > - Has fundamentals - this is useful, and the data feed can be used > > > > > > with more fundamentally-oriented scanning software such as HGSI. > > > > > > - Has a ton of indices - gold/silver/oil, etc as well as put/call > > > > > > indices, etc. Premium may have the put/call as well - I'd have to > > > > > > take a look. > > > > > > > > > > > > On Premium Data: > > > > > > - Fantastic folder breakdown of industries and indices. So, > > > > > > running a scan over the stocks in the S&P 500 or the S&P 1500 is > > > > > > simple, and will not require maintenance from you. > > > > > > - Lacks some basic useful indices out of the box - like those > > > > > > mentioned above (oil/gold/etc). > > > > > > - No fundamental data. > > > > > > - Great ETF breakdowns into different categories. > > > > > > > > > > > > Telechart: > > > > > > - Includes access to their online stock tool freestockcharts.com > > > > > > - Includes fundamentals > > > > > > - Lots of indices and special, TC-only indices like T2106 etc. > > > > > > - Major problem - the API to access the data via AB doesn't adjust > > > > > > for splits or dividends. This basically, from my point of view, > > > > > > makes it useless for backtesting. > > > > > > > > > > > > That's what I've got right now - to me it's a toss up between > > > > > > Quotes Plus and Premium. > > > > > > > > > > > > --- In [email protected], "droskill" <droskill@> wrote: > > > > > > > > > > > > > > I think the only other vendor worth looking at is Quotes Plus - > > > > > > > just my opinion. Anybody have a comparison of the two that has > > > > > > > experience with both? From my limited experience, QuotesPlus has > > > > > > > a bit more extensive indices, but Premium has it on organization. > > > > > > > > > > > > > > --- In [email protected], "louies88" <Louies88@> wrote: > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > --- In [email protected], "patsgreatdeals" > > > > > > > > <patsgreatdeals@> wrote: > > > > > > > > > > > > > > > > > > Is there a plugin for AMIBroker? for premiumdata.net? > > > > > > > > > > > > > > > > > They don't have a plugin in the truest sense, but they have a > > > > > > > > little program that you must install. It has all the necessary > > > > > > > > structure and very well integrated to Amibroker. Everyday you > > > > > > > > just update the data via this little program > > > > > > > > and...voila...they're updated in your AB database. > > > > > > > > > > > > > > > > Premiumdata.net is very extensive and very good, especially in > > > > > > > > the sector indices. If you're a top-down analyst, you'll like > > > > > > > > their sector index break down. It's very comprehensive. The > > > > > > > > update, by the way, is very very quick compared w/ Amiquote or > > > > > > > > any other service that relies on Yahoo data. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >
