Ballaios minted coins in his own name. His coins with the long legend ΒΑΣΙΛΕΩΣ ΒΑΛΛΑΙΟΥ (βασιλέως Βαλλαίου) were minted in Rhizon while the coins with the short legend ΒΑΛΛΑΙΟΥ and the head of the king Ballaios which is of a different type and are older, were minted in Pharos. In some cases it is possible to observe that Ballaios' coins were over struck on the older Pharos specimens. The distribution of his coinage indicates that they were concentrated in the central Dalmatian area, while a large number of different dies that could have been identified to date indicates a long minting of his coins. Numismatic evidence shows that Ballaios reigned for quite a lengthy time. His coins are also frequently found in Italy, which confirms the trade contacts between both Adriatic coasts.