Online retailer Overstock.com spent $8m last year on its blockchain-backed securities trading initiative.
In a statement to investors, CEO Patrick Byrne wrote that the firm spent $6m more than originally anticipated on its blockchain research. The firm said in November that it spent $3.2m during the third quarter on the initiative.
The disclosure came with the firm's Q4 2015 results, which were published yesterday after markets closed.
, the firm formally unveiled its blockchain-based securities trading platform, dubbed tø. The platform was used to issue a $5m 'cryptobond' in July.
Notably, Byrne suggested in the notice that Overstock is weighing possible blockchain applications for its online retail business. While few details were offered, the project would involve the trading platform in some capacity.
"Incidentally, I am exploring a possible synergy between these two wings of our business (retail and our capital markets innovation), but if it does not prove out they will be separated," he wrote, adding:
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