Thank you for sharing your trade details via support ticket. This was helpful and isolated the misunderstanding.
For others who may be following the thread, the USD value of his account has actually gone up as expected during this time.
However, @howza noticed the decline in BTC balance.
As important clarification, our models are looking to optimize USD balance, not BTC balance.
When you buy back in at a higher BTC price, you will get less BTC per dollar. As such, if you are measuring your BTC balance, you may find you are buying smaller and smaller quantities of BTC, even though your USD balance is going up. The dynamics of this are complex and will flux over time. It is possible to have both go up, both go down, or a mix.
But it is critical to note that the only goal of our models is to maximize USD value of the account over time.