UPDATE: we are limiting the initial release of the Altfund3 to the first 500 subscribers who will subsequently receive the updated index daily. Hurry to make it in time and gain exclusive access to this and future features such as advanced algorithms, more sophisticated indices, and our token pre-sale & ICO.

There are a lot of "how should I allocate my funds" type questions here, which I've been lurking around reading for quite some time. It's always a hard question to answer. Here's my 0.00000002 BTC.

[FWIW, I've been developing automated trading systems for the cryptocurrency markets and trading my own portfolio for the past two years (now leading a team of six), after trading niche commodities OTC on a traditional desk for a few years before that, and I have a degree in economics and natural resources (i.e. commodities). This is not investment advice, just information about how I do things. My overall goal is to democratize the best practices used by successful investors as an answer to the huge amount of BS being peddled by the technical analysis and pump & dump crowd.]

For most of our clients who are coming into the market via coinbase+GDAX we recommend a simple index of BTC, ETH, and LTC based on market-cap (total market value of available coins). Like the S&P500 for crypto. Here's what we have today:

Symbol | Weight | Mark Price | Coins per $1,000
BTC | 78.80 % | $11,1153.70 | 0.07065
ETH | 18.89 % | $465.14 | 0.406153
LTC | 2.31 % | $100.89 | 0.228646

A full example report with a daily backtest of this index going back 2 years can be found at index.altfund.org. We are offering frequent updates as a subscription service if you want to use it for your own portfolio ($5/month), and if we get enough subscribers we will offer them exclusive access to the same automated trading system we give our high-paying clients. It's math you can do yourself, but not having to can save you 10-15 minutes per month so I think it's good value.

This is the first public version of many smart portfolios and rebalancing strategies we have developed over the years, and we hope to release more if there is sufficient interest, so if you want to be the first to hear about those,check out index.altfund.org. I hope you like. Feedback is welcome.

The Kraken API is somewhat unique in that withdrawal addresses cannot be provided via it. You must add the address and name it via the Kraken web interface, and the name used in this setup is what you need for the `withdrawalkey` variable within the script.

Familiarizing yourself w/ the API documentation will not help other than to point you in this direction as ambiguously as in the OP. Just setup withdrawal via the web UI, you will see how it is supposed to work.

@OP: Useful script, thanks for sharing!