Today's 3 charts of BAC / not same

[jk90029]

Dear-

I see there are three different cases of graphs, for today's OHLC of BAC.

1) yahoo.com
http://finance.yahoo.com/echarts?s=BAC+Interactive#{"range":"1d"}

2) tradingview.com
https://www.tradingview.com/chart/?symbol=NYSE:C
Type BAC instead of C.

3) However, IB shows today's BAC as attached below.

I wonder if there are three different markets with three different chart, for the same BAC. Something wrong in my observation?

For the 3) IB, there might be edge with programming , to buy as low as at $16 or $ 15.6.
However, it may not easy for individual investor, to catch such a UNUSUAL updown from 15.6 to 17.7 IN 5 MINUTES.

I can program a code to catch the unexpected drop of particular symbol, as long as someone tells me how to catch the point, not my personal eye BUT by computerized precise watch in each second.
Is there any non-free company which help us to catch the unusual behavior?

 

[jk90029]

Furthermore, please tell me if there is another different chat, other than the above three, for the same BAC.

 

[lindq]

It isn't unusual for daily lows on equities to display different prices depending on the data vendor or broker.

That's also why backtesting equity strategies based on daily lows can be very problematic. I know, because I wasted a good part of my life chasing daily-low equity strategies until I determined that an actual real-time daily low can sometimes be quite different than what is later logged by a vendor or broker.

It can be frustrating, but that's just the way it is.

 

[jk90029]

Probably you mean, "Accept it, or leave NYSE"

There are many countries, which give same data, to public.