BTCUSD Combined Volume

This script sums the volume for BTCUSD across several popular exchanges. I share it not so much as an indicator as a tool to use in other indicators (i.e. those that rely on volume, which often do not work very well for crypto due to the low volumes). Similar sums could easily be created for other currency, and with a little thought I could probably add the ability to parameterize the currency (e.g. type "BTCUSD" or "ETHBTC" or "LTCUSD" or whatever as an input).

I got the idea from seeing someone asking in chat whether it is possible to combine volumes across multiple exchanges, so kudos to oh92 and paaax for the neat idea.

Please feel free to incorporate this in your own indicators as you like...and of course if you're feeling generous, tips are appreciated. Thank you!

BTC
3KmFchJ18QvMzAJKDcFQXvyK9p1EHWQdhP
BCH
qqtrw64ptuwprk5vtj3z8qwkvh3v0jawxq7khqng7x
ETH
0x9b51361A278910Ba3945C7519C9f0FA8a77df18d
LTC
MDeWWsP7XCG2zQuZ2dYALZXQ52u2qkc8fh

Release Notes:

V41: Added Gemini; allowed further lookback to the earliest exchange that has data available; added indication as each subsequent exchange's data becomes incorporated.