Begineer question: Why Delta() is not working on my TOS?

[Scoodood]

Hi, I am new to ThinkScript. I have tried out the following code snippet but it doesn't plot any chart at all.
https://tlc.thinkorswim.com/center/reference/thinkScript/Functions/Option-Related/Delta

declare lower;
def epsilon = 0.01 * close(GetUnderlyingSymbol());
plot approxDelta = (OptionPrice(underlyingPrice = close(GetUnderlyingSymbol()) + epsilon) - OptionPrice()) / epsilon;
plot Delta = Delta();

I also tried the most basic code like this but it still doesn't plot anything.
Any idea what went wrong here? Thanks.

declare lower;
plot Delta = Delta();

 

[halcyonguy]

Hi, I am new to ThinkScript. I have tried out the following code snippet but it doesn't plot any chart at all.
https://tlc.thinkorswim.com/center/reference/thinkScript/Functions/Option-Related/Delta

declare lower;
def epsilon = 0.01 * close(GetUnderlyingSymbol());
plot approxDelta = (OptionPrice(underlyingPrice = close(GetUnderlyingSymbol()) + epsilon) - OptionPrice()) / epsilon;
plot Delta = Delta();

I also tried the most basic code like this but it still doesn't plot anything.
Any idea what went wrong here? Thanks.

declare lower;
plot Delta = Delta();

are you using an option symbol in the chart?

this has an example of an option symbol,

.GOOG120317C580

. period
stock symbol
yy
mm
dd
c or p
strike price

https://tlc.thinkorswim.com/center/reference/thinkScript/Functions/Option-Related/GetNextITMOption

 

[Greenlight]

Hi, I am new to ThinkScript. I have tried out the following code snippet but it doesn't plot any chart at all.
https://tlc.thinkorswim.com/center/reference/thinkScript/Functions/Option-Related/Delta

declare lower;
def epsilon = 0.01 * close(GetUnderlyingSymbol());
plot approxDelta = (OptionPrice(underlyingPrice = close(GetUnderlyingSymbol()) + epsilon) - OptionPrice()) / epsilon;
plot Delta = Delta();

I also tried the most basic code like this but it still doesn't plot anything.
Any idea what went wrong here? Thanks.

declare lower;
plot Delta = Delta();

Were you able to get delta to show up?
im traing to formulate delta / ask but cant get delta to work

 

[Scoodood]

are you using an option symbol in the chart?

this has an example of an option symbol,

.GOOG120317C580

. period
stock symbol
yy
mm
dd
c or p
strike price

https://tlc.thinkorswim.com/center/reference/thinkScript/Functions/Option-Related/

No, I did not. I simply took the sample code from Thinkorswim's learning center and expect the code to work, but it didn't.
https://tlc.thinkorswim.com/center/reference/thinkScript/Functions/Option-Related/Delta

To prove my point again, I tried the following code.

declare lower;

AddLabel(yes, getUnderlyingSymbol());
AddLabel(yes, "Yield" + GetYield());
AddLabel(yes, "Next ITM option" + GetNextITMOption(".MSFT250620C230"));
AddLabel(yes, "Delta" + Delta());
plot y_close = close(getUnderlyingSymbol());
plot y_iv = imp_volatility(getUnderlyingSymbol())*100 + 150;

See the output Imgur

As you can see, all the codes work except Delta(). The Delta() simply returns N/A.
Can you show me a sample code of Delta() that returns a meaningful output? I would like to learn. Thanks

 

[iMauiC]

No, I did not. I simply took the sample code from Thinkorswim's learning center and expect the code to work, but it didn't.
https://tlc.thinkorswim.com/center/reference/thinkScript/Functions/Option-Related/Delta

To prove my point again, I tried the following code.

declare lower;

AddLabel(yes, getUnderlyingSymbol());
AddLabel(yes, "Yield" + GetYield());
AddLabel(yes, "Next ITM option" + GetNextITMOption(".MSFT250620C230"));
AddLabel(yes, "Delta" + Delta());
plot y_close = close(getUnderlyingSymbol());
plot y_iv = imp_volatility(getUnderlyingSymbol())*100 + 150;

See the output Imgur

As you can see, all the codes work except Delta(). The Delta() simply returns N/A.
Can you show me a sample code of Delta() that returns a meaningful output? I would like to learn. Thanks

So from my experience delta only indicates on the options chart