 Pre-Amble

Well, it might not be easy to understand those values using TradeStation Help Documentation,  because I think there is not satisfying explanation.

# What is and How to use them

Remember, that 3 of them (MinMove, PointValue and PriceScale) are important parameters, and they should be provided by Platform. Other reserved words (Point, BigPointValue..) are just calculated depending from those 3 values, so, you only need them.

## PriceScale

1)` PriceScale ` – This is a pre-determined parameter (Platform gives you specific PriceScale value per symbol), you dont need to manually determine it.   PriceScale  is a number (i.e. 100) which represents the fractional portion of a full point move for a symbol.This is not obtained by calculations, instead this is a FIXED parameter and different symbols have different PriceScale (Platform provides those variable numbers).  I mean, how many digits are after dot.  For example, many stocks have like this: here `PriceScale` is 10000 [5 digits after dot] (This is for i.e. EUR/USD ) here `PriceScale` is 100 [2 digits after dot]   (This is for E-Mini S&P, and I will use this one in future paragraphs)

p.s. You may think, that in these cases, i.e. for E-MINI price change happens by 0.01 , but that’s not always true.. let’s discuss it a bit later).
So, remember, what is `PriceScale`. Shortly, it indicates “how many digits after dot”.

#### Point

`Point` –  it is a bit confusing value, sometimes it’s called `pip` in forex community.  It is  `1 / PriceScale` (but in some symbols, like 3 or 5 digit symbols, that value should be multiplied by 10).   For example, for AUDUSD, `PriceScale` is 100000 , but point it’s `0.0001`.

## PointValue

2) `PointValue` – This is a what TradeStation automatically assigns depending on symbol. This is a market value of one Point.  For example, one `Point` of E-MINI (which is 0.01)  value is 0.50 .  So, you can say that `PointValue `is 0.50 for E-MINI.

## MinMove

3)` MinMove` (Minimum Movement Amount of Points) – we should remember the difference among these one for any symbol:

• Minimum Movement in price
• Minimum Movement in contract value
• Minimum Movement Amount of  points ( <— only this is called MinMove)

`MinMove` – This is a pre-determined parameter (Platform gives you specific `MinMove `value per symbol). For example, as  I’ve mentioned in the beginning, one E-MINI Point is 0.01 ( and `PointValue `is 0.50 as we said) , but on the chart, you will see that price doesnt change by 1 point (0.01 increment), but it changes by 25 (`MinMove`) points, which is 0.25 increment (call this one Minimum Movement in price).

Let’s summarize (for example: E-MINI )

– one Point  (of symbol price) is: 0.01
`PointValue `is: 0.50
`MinMove`(Minimum Movement amount) of points  is: 25
Minimum Movement in price is:  0.25 (lets call it TickSize)
Minimum Movement in contract value is:
25(`MinMove`) * 0.50(`PointValue`) = 12.5
(lets call it TickValue)

## p.s.  BigPointValue

`BigPointValue` – This is nothing  special. Platform just automatically calculates and gives you how much value (per contract)  has 1 full point move. This is:  amount of Points in 1 full point (a.k.a. `PriceScale`)  * `PointValue`.
For example, for E-MINI, it is :     100 (because `PriceScale` is 100 )  *  0.5 (`PointValue`) = 50