LazyBear ' s "Weiss Wave " codes are used for open interests.
Original Weiss Wave Volume :
Let's start :
Open Interest vs. Volume: An Overview
Volume and open interest are two key measurements that describe the liquidity and activity of contracts In the options and...
CFTC only publishes total OI on fridays, related to last Tuesday.
But what happened since last Tuesday?
CME Vol & Open Interest data is recorded&exported daily by quandl.com to tradingview
via the che CHRIS/CME datasets
Eg. Nat Gas next outstanding cntract n. 20, field n....
Daily e-o-d Open Interest as published by CME.
As CFTC COT Open Interest relates to last Tuesday, here you can have an idea how things evolved day-by-day since then.
As CME total OI is not accessibl as data, here I sum OI of the next 9 outstanding contracts, which gives a fair idea of the trend in OI