A trader opened a long position (betting on a price rise) in 9,810 ZEC at $517.68 about one month before Sept. 19 and was showing an unrealized gain of $9.98 million. The trader also held a short position (betting on a decline) in 3,550 ETH, which showed an unrealized loss of $2.6 million, according to Onchain Lens monitoring cited by PANews.