I have a tendency investment system. In the past 15 months, it has worked very well in the BTC/Ethereum market on Poloniex !
https://poloniex.com/exchange#btc_eth

BUY and SELL

Let's see how it works for buy and sell. The following chart is for the buy and sell points.

If you invest 1 bitcoin, the balance will be the following. You will get about 9.8 bitcoins !

SHORT SELL

I do not use leverage here. For example, if I have 1 bitcoin, the eth price is 0.2 bitcoin, I only short sell 5 eths. So there is almost no risk.

The result is also very good. If you invest 1 Bitcoin, you will get nearly 12 Bitcoins !

If you both buy and short sell, you will get more than 27 times of your Bitcoins ! Your balance changes like

1
1.49432
1.30198
1.41071
16.10506
18.95312
19.72388
22.70252
21.49863
19.84923
18.2859
27.4599

So from 2015-09-09 to 2016-12-08, your 1 bitcoin has become 27.45 bitcoins ! 1 Bitcoin in 2015-09-09 is 240 US dollars, but now(2016-12-08) it is 770 US dollars, its price has been 3.2 times of it used to be, so your money has been 27.45 X 3.2 about 88 times !

If you have interests about this investment system, please leave your email here or subscribe on http://www.turtlebc.com/, you could also send me a message to my email outofclouds#gmail.com. Thanks !