Has anyone _verifiably_ duplicated Yahoo's real time technical market indicators _numbers_? If so, h

[fan27]

I helped a client move from ThinkOrSwim to AlgoTerminal and the DTN IQFeed data I was using in AlgoTerminal just about identically matched (regular and extended trading hours stock data) the ThinkOrSwim data. So either both ThinkOrSwim and IQFeed has corrupt data that identically matches (highly unlikely) or they both have quality data.

 

[jabowery]

If that’s the case - why are you so intent on using free data with indicators for which you have no idea the study sampling rates and conditions?

You can buy clean data for cheap directly from the trading exchange. And no competent analyst uses default technical study parameters.

Well data is far from perfect. Yahoo uses CSI data from what I re collect but their adjustments can get wonky at times and theirs no one to complain too.

When I used IQFeed few times I found issues a quick e-mail had it looked into and fixed within 24 hours.

It sounds like the first step should have been to shift the manual process to a customer-responsive charting service that offers an API so that once the manual process is replicated on the new charting service there can be confidence that the algorithm will be able to replicate its indicators.

Thanks. Your response is helpful.

 

[murray t turtle]

Yahoo Finance is nice but... I can't imagine you would/should rely on their data as the gold standard.

%%
IN a word; dont.
Much free stuff isnt worth it LOL. IBD [investors.com] is a good/great free data source/200day moving average , delayed. And thier volume is more delayed some times than price. I do like YHOO 12 month candles[ 1 candle = 12 months, but thier % change is almost 100% wrong,LOL],

 

[murray t turtle]

If that’s the case - why are you so intent on using free data with indicators for which you have no idea the study sampling rates and conditions?

You can buy clean data for cheap directly from the trading exchange. And no competent analyst uses default technical study parameters.

%%
That's an advantage of - focus on a few;
may catch errors.Free is a powerful word-that is why you may have noticed so many ads use it [free]!! YHOO has an accurate 50 day moving average, same as investors.com. BUT notice their % gain errors=about 100 % wrong LOL
It is fun to sue b*stards; but not sure yahoo does qualify for that LOL. Especially since about 100% of their % gain[candlecharts] is wrong.LOL,