GLOSSARY OF ACRONYMS

TOS = Thinkorswim

ITM = in the money

ATM = at the money

OTM = out of the money

DTE = days to expiry

BTO = buy to open

BTC = buy to close

STO = sell to open

STC = sell to close

P/L = profit and loss

IV = implied volatility

BPS = bull put spread

BCS = bear call spread

TOS ACRONYMS:

STK = stock (used in analyze tab; risk profile)

TIF = time in force

GTC = good till cancelled 

https://tlc.thinkorswim.com/center/Glossary