Proficio Capital Partners Expands Stake in Cambria Tail Risk ETF Proficio Capital Partners LLC has recently acquired 68,880 shares of Cambria Tail Risk ETF, amounting to a $771,000 investment. This acquisition, representing 1% ownership, underscores growing interest in hedging strategies amidst market uncertainties. With a focus on downside protection, TAIL utilizes put options and treasuries to mitigate portfolio risks.12