user63485: Take a look at this address: https://blockchain.info/address/138oqqr5gficMb3sHDPYxe4GiMWEg7Zozp
Why there are two transactions with the same amount of BTC (one with green arrow and one with red arrow).

user12983: Green arrow means incoming funds to this address
Red arrow means outgoing from.
There is not obligatory that the number of incoming transactions is equal to the number of outgoing ones. For this particular address there are 14 incoming and 14 outgoing transactions. This address seems to be some kind of mixer or/and technical address of some service.

63485: <p>Take a look at this address: <a href="https://blockchain.info/address/138oqqr5gficMb3sHDPYxe4GiMWEg7Zozp" rel="nofollow noreferrer">https://blockchain.info/address/138oqqr5gficMb3sHDPYxe4GiMWEg7Zozp</a></p>

<p>Why there are two transactions with the same amount of BTC (one with green arrow and one with red arrow).</p>
 12983: <p>Green arrow means incoming funds to this address</p>

<p>Red arrow means outgoing from.</p>

<p>There is not obligatory that the number of incoming transactions is equal to the number of outgoing ones. For this particular address there are 14 incoming and 14 outgoing transactions. This address seems to be some kind of mixer or/and technical address of some service.</p>
