# Commitment of Traders (COT) Indicator for ThinkorSwim

#### Jerald643

##### New member
If anyone is familiar with the famous trader Larry Williams you will know he uses the COT (Commitment of Traders) data. It’s free public data. I was wondering if anyone has tried to write a script for that COT indicator?

Does anyone know of COT data is available on Ameritrade's platform? If not, with thinkscript, can I use external data or write a provider/connector for external data?

Solution
You can try this for ThinkorSwim:

Code:
``````input n = 38;

def o = open;
def h = high;
def l = low;
def c = close;

# TrueHigh = Highest of High or Close[1]
def TrueHigh = Max(high, close[1]);
# TrueLow = Lowest of Low or Close[1]
def TrueLow = Min(low, close[1]);
def OI = if isNaN(open_interest)
then OI[1]
else open_interest;
def poiv = sum (OI * (close-close[1] / (Truehigh - Truelow)) + onBalanceVolume());
plot values = (lowest(poiv, n)/highest(poiv,n));
AddLabel(yes, concat("POIV ", poiv), Color.white);
# End Code COT proxy``````

Check out TradingView for code that can possibly be translated to ThinkScript: https://www.tradingview.com/scripts/commitmentoftraders/

Of course, you can access all the COT info you like at Barchart...

#### gapcap1

##### New member
You can try this for ThinkorSwim:

Code:
``````input n = 38;

def o = open;
def h = high;
def l = low;
def c = close;

# TrueHigh = Highest of High or Close[1]
def TrueHigh = Max(high, close[1]);
# TrueLow = Lowest of Low or Close[1]
def TrueLow = Min(low, close[1]);
def OI = if isNaN(open_interest)
then OI[1]
else open_interest;
def poiv = sum (OI * (close-close[1] / (Truehigh - Truelow)) + onBalanceVolume());
plot values = (lowest(poiv, n)/highest(poiv,n));
AddLabel(yes, concat("POIV ", poiv), Color.white);
# End Code COT proxy``````

Check out TradingView for code that can possibly be translated to ThinkScript: https://www.tradingview.com/scripts/commitmentoftraders/

Of course, you can access all the COT info you like at Barchart: https://www.barchart.com/futures/commitment-of-traders, and finally look at COTbase, they have a COT indicator; however it's for Ninja Trader 8.

#### majidg

##### Member
If anyone is familiar with the famous trader Larry Williams you will know he uses the COT (Commitment of Traders) data. It’s free public data. I was wondering if anyone has tried to write a script for that COT indicator?

Does anyone know of COT data is available on Ameritrade's platform? If not, with thinkscript, can I use external data or write a provider/connector for external data?
can someone write the codes for the lower study in the above chart? I believe this is William Cot Comm Index. Thanks

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