TAC Buy-Sell

TAC Buy-Sell

It is a professional tool to analyze the volumes of negotiation differentiating
purchases in the market and sales.

The formula is obtained by subtracting the ASK – BID = Delta Bar and dividing it into two components resulting in a histogram:

– Green bar: positive “aggressiveness of buyers”, BID.
– Red Bar: negative “aggressiveness of sellers”, ASK.

Share this

Risk disclosure:

No information on this site is investment advice or a solicitation to buy or sell any financial instrument. Past performance is not indicative of future results. Trading may expose you to risk of loss greater than your deposits and is only suitable for experienced investors who have sufficient financial means to bear such risk.

ProRealTime ITF files and other attachments : How to import ITF files into ProRealTime platform?

New! PRC is also now on YouTube, subscribe to our channel for exclusive content and tutorials

  1. Pasquale Fracicone • 04/08/2019 #

    What is the value of the variable subasta?

    • TAC Bolsa • 04/08/2019 #


      It is a condition that is used to hide the auction in shares in 5 minutes or Tick as shown in the link.

      For futures or other instruments without auction you have to uncheck the auction option.


    • TAC Bolsa • 04/08/2019 #

      Another Link of how the volume looks with or without auction “subasta”

  2. dario ti • 04/08/2019 #

    please can you help me to understand? i know i am wrong:

    Long Histogram = High Volume
    Short HIstogram = Low Volume

    GreenZone = Buyer volume
    RedZone = Seller volume

    Up Histogram = Delta Positive (buyer stronger than seller)
    Down Histogram = Delta Negative (seller stronger than buyer)

    but it is wrong according to the picture, because i see a lot of red up histogram

    • TAC Bolsa • 04/08/2019 #


      I have already seen the problem and requested that it be removed until an adequate solution is found.

  3. sixeight • 3 hours ago #

    Hey TAC,

    Did you ever find a solution to this?

Register or


avatar avatar avatar avatar
Related users ' posts
lumarino ok gracias
19Tom85 Good evening, I am new here and quite interested in Volume Price analysis. may I ask you if ...
angelpero Me alegra ver que has vuelto a programar en Proreal, me gustaría poder acceder a tu blog, si...
Maxime Baudin Very useful! Thanks Mat, and Happy New Year
JayD Dans "modifier" Il faut ajouter les variables en cliquant sur la clé dans le bar en haut. Vo...
Kris75 Merci Jeanguy, suis très preneur de vos stratégies profitables avec cet indicateur !!
Screw27 Salut je vient d’installer ton indicateur mais il fonctionne pas ça m’indique un message d’e...
Om Hello, thanks for sharing! Getting a message that Variable P is undefined?
LucioleLucide Clean view, thanks for sharing
dertopen hi where i can found the window for candle configuration?
paolosab69 Ciao! . I have seen the pictures that explain this metod but i don't understand when is mome...
12 months ago
Gianluca Thank you!
Vinks_o_7 b=close > low and volume > high How can we compare volume and high of the day? (orang...
TAC Bolsa If to understand something you resort to compare Oranges and bananas. You go bad, Without e...
Gianluca THANK YOU!!!!!
TAC Bolsa Thank you, Jan Any modification is good reference if it helps us win in the market.
marcov66 Hi, it seems a very useful indicator. Unfortunately the link here for the full explanation d...
TACBOLSA Discontinued indicator. we are sorry.
tobytarczy Hi I am new to Pro RealTime platform. The TAC Volume profile is one that I would like to us...
19Tom85 Hi TAC Bolsa, your indicators are very value adding. May I ask you to please invite to your ...
toby.tarczy Hi I manged to load the indicator, great tool. Is there a way to speed up the refresh time o...
nn189hu Upss I got it, 10.3 only with premium ,I can’t add it to the chart with Complete ver.
Nicolas Add indicator on price doesnt require any specific type of subcription. Click on the wrench ...
tahiti bonjour j'ai une petite question comment peux on enlevé la bar blanche sur la bougie en cour...
Nicolas Good job Gabri, I confirm that with the new ProRealTime v11, everyone will be able to use in...
Slowlyslowly can u just help me with the exact definition of percbox , mm and period to understand will a...
Real Pro Great work gabri. I have this coded on Amibroker and I have done lots of backtesting but ne...
gabri Hi Real Pro, this indicator assists novices of the Wyckoff system. Wyckoff himself thought t...
tatie hi Gabri, I just came across the wyckoff method and was looking for the weiss wave indica...