“My Orderflow is showing Big Buyers at day low and your orderflow is showing Big Sellers at day low which one is true?”
these is one of the frequent questions we get in our slack trading community which puzzles the orderflow traders most of the time.
To solve this question there is a simple and easiest way to figure out whether the executed order is from Aggressive Big Buyers/ Aggressive Big Sellers. The key to the answer is Tick Charts.
What is a Tick Chart?
1-Tick Chart is a price chart which plots the price at each and every price transaction where price goes up with upticks and goes down with downticks.
If you are seeing the uptick in the price then aggressive buyers (Market Buy Orders) are responsible for that individual transaction and if you are seeing a downtick movement in the price then aggressive sellers (Market Sell Orders) are responsible for the individual transaction.
How to Get Tick Charts?
If you are having authorized data vendor subscription (Globaldatafeeds, Esignal, Truedata) with Tick level charts supporting software (Amibroker, Ninjatrader, Multicharts…etc) then all you need is how to
Gaps in Tick Charts
If you are seeing gaps in tick level charts that indicates no liquidity zones where the buyers/sellers are no present in that trade location to transact. Which usually happens when stop hunting happens or when
To explain this example look into Nifty Future Jan Contract on 22nd Jan 2019 (Time : 12:10:06 p.m) where a big selling volume happened with a gap. Almost 1917 lots or 1,43,775
Big Transaction happens here with a intra gap down on tick charts because the big seller executed with a market order which matched with the Big limit buy order on the orderbook (i.e next available liquidity)
Nifty Futures – 1 Tick Chart (Amibroker

How does it get visualized in Orderflow Charts
Here is the Orderflow Charts at the same time looks like on a 5min charting timeframe. Tools used (Ninjatrader8 + BellTPO). One should be able to visualize those Bigger sellers on the left side of the Orderflow ladder as shown below (i.e on Aggressive sellers side)
Nifty Futures 5min Charts (Ninjatrader 8 + Orderflow)

How Orderflow Charts are computed?
Orderflow charts can be plotted using two methods
1)Bid x Ask method
2)UpTick / DownTick method
both the methods are more or less reliable. In a Bid x Ask method orderflow charts are based upon executed transactions at bid or ask. And Uptick/Downtick method is used when there is no executed Bid x Ask information which still closely matches with Bid x Ask Information
Last time when I had a discussion with Globaldatafeeds Product owner real Bid x Ask information is transmitted at every
Conclusion
So next time before asking someone else just open your tick charts and verify yourself from your trading software whether the executed transaction is an aggressive buy order or an executed sell order. If it is a big aggressive buy order then the big volume transaction comes with the uptick in the price else if it is a big aggressive sell order then the tick charts shows big volume transaction with a downtick in the price.
Not only the Bigger volumes each and every tick / transactions from tick charts you should be able to match in your orderflow charts. If you are finding mismatch between your tick charts and orderflow then something is wrong with the orderflow tool that you are using.
So What does it imply if there is a Big Seller Volume Transaction at days low? Learn more in detail in our upcoming crash course on