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The U.S. Securities and Exchange Commission (SEC) approved the spot bitcoin exchange-traded fund (ETF) last Tuesday, prompting South Korean investors to flock to cryptocurrency exchanges to make transactions. However, the revenues recorded by these exchanges showed a mixed performance in response to this development due to their differing transaction fee policies, according to local news outlet DealSite on Monday.Photo by Maxim Hopman on UnsplashTrading volumes surge and retreatAccording to crypto analytics platform CoinGecko, as of 9 a.m. on Jan. 12 (KST), Upbit's trading volume on Dec. 11 and 12 was approximately $5.1 billion and $6.1 billion, respectively, for a total of about $11 billion. During the same period, Bithumb recorded $2.6 billion and $2.4 billion, respectively, totaling nearly $5 billion. However, as of this writing at 11 a.m. on Jan. 15, Upbit’s 24-hour trading volume has dropped back down to $2.1 billion and Bithumb to $874 million. "After the SEC's approval, crypto exchanges were simultaneously flooded with transactions," an anonymous industry employee commented. "Bitcoin and Ethereum were mainly traded." Fee divergenceAlthough the ETF approval caused a general uptick in trading volumes, the amount of revenue that the exchanges earned from transaction fees varied. Upbit charges a fee of 0.05% for both buying and selling crypto, meaning the exchange made an estimated KRW 14.8 billion in revenue from the fees from Dec. 11 to 12. Bithumb, on the other hand, hasn't earned any revenue from trading fees since its zero-fee policy was implemented in October last year.  Bithumb had previously charged 0.25% for transactions and 0.04% with coupons. By implementing the former, the exchange lost about KRW 15.8 billion ($12 million) in revenue, and with the latter, it lost about KRW 2.5 billion. For crypto investors, Bithumb's zero-fee policy has made investing more accessible, but the exchange is unlikely to reap its own rewards. Significant investor interestMoreover, with trading for the spot bitcoin ETF beginning on the 11th, the influx of funds is expected to boost trading. "All told there were 700,000 individual trades today in and out of the 11 spot ETFs," Bloomberg ETF analyst Eric Balchunas told X (formerly Twitter). "For context, that is double the number of trades for $QQQ." $QQQ refers to the Invesco QQQ ETF. According to an image that accompanied Balchunas’ post, the total trading volume across all 11 spot ETFs was reportedly $4.3 billion. Grayscale's GBTC had the highest volume at $2.1 billion, followed by BlackRock’s IBIT at $1 billion and Fidelity’s FBTC at $673 million.

While South Korea’s central bank has opted not to accumulate Bitcoin (BTC) at a nation-state level, North Korea has become a major holder of the leading crypto asset, albeit in a very unconventional way. The Democratic People's Republic of Korea (North Korea) is believed to currently be in possession of 13,518 BTC. That’s according to data compiled by the blockchain analytics firm Arkham Intelligence. Arkham has labeled the holding as belonging to the notorious North Korean hacking organization Lazarus Group. It’s been alleged by many observers over recent years that Lazarus is controlled by the North Korean government. Photo by Vasilis Chatzopoulos on UnsplashOn this basis, it would appear that North Korea now has a larger Bitcoin holding than the Bitcoin-friendly jurisdictions of Bhutan and El Salvador. The Kingdom of Bhutan holds 10,635 BTC through Druk Holdings and Investments (DHI), the commercial arm of the Royal Government of Bhutan.  Meanwhile, El Salvador holds 6,119 BTC. Bhutan has been accumulating Bitcoin as a consequence of Bitcoin mining activity carried out by the government in partnership with Singapore-based Bitcoin mining firm Bitdeer and others within the Asian country over recent years. El Salvador made a commitment to buy Bitcoin on an ongoing basis following its recognition of the digital asset as legal tender back in 2021. Based on Bitcoin pricing at the time of writing, Arkham’s data suggests that North Korea currently holds Bitcoin with an overall value of around $1.14 billion. It’s believed that North Korea’s overall holdings have been bumped up recently following a $1.4 billion hack of global crypto exchange Bybit last month. According to crypto data analysis firm Coin Metrics, the hack stands as one of the largest of all time.  Arkham’s data suggests that North Korea now has the third largest nation-state holding of Bitcoin, with the U.S. in first place, with 198,109 BTC, and the UK next with a holding of 61,245 BTC. Besides Bitcoin, the Lazarus Group is understood to be sitting on ETH, BNB, DAI and BUSD worth in the region of $30 million. In the immediate aftermath of the hack, the hackers moved to swap out some of the stolen Ether (ETH) for Bitcoin via the THORChain decentralized liquidity protocol. South Korea not building Bitcoin reserveWhile North Korea appears to have accumulated Bitcoin at the nation-state level through nefarious means, the Republic of Korea’s (South Korea) central bank has given an indication that it currently has no plans to accumulate Bitcoin.  According to a recent local media report, the Bank of Korea (BOK) responded in writing to a query from a Korean parliamentarian, outlining that there is no plan currently to develop a Bitcoin reserve or to stockpile Bitcoin at a national level.  The BOK is understood to have cited Bitcoin’s price volatility as a major concern. Additionally, the central bank outlined that Bitcoin doesn’t conform to the International Monetary Fund’s (IMF) guidelines relative to foreign exchange reserve management.

Upbit Adds Polygon Staking ServiceDunamu, the blockchain and fintech firm that operates South Korea’s largest cryptocurrency exchange Upbit, announced on Wednesday (local time) the addition of Polygon’s MATIC to Upbit’s staking service, now available via the Upbit website and mobile application.Photo by GuerrillaBuzz on UnsplashStaking is a service where users entrust their cryptocurrency to a blockchain network to boost its security and receive virtual assets as rewards. The virtual assets deposited by staking users are used in the transaction verification process of generating new blocks in the blockchain network of the respective asset. Users are then rewarded with virtual assets for their participation in the process.Polygon is an Ethereum Layer 2 scaling solution that allows developers to build various decentralized applications (DApps) within the Ethereum ecosystem. Its native token is called MATIC.Expanded staking optionsAny Upbit user who has completed the Know Your Customer (KYC) process and enabled two-factor authentication can participate in staking on Upbit. The minimum staking amount is 2.7 MATIC. Users who participate in staking receive rewards once every day. They can also unstake their tokens at any time they want.“At Upbit, we utilize our world-class security measures, robust infrastructure, and years of technological expertise to operate validators and stake users’ assets for them,” the exchange said. “Users’ crypto assets that are used in staking are safely stored in a cold wallet.”Dunamu officially launched the Upbit Staking service in January of last year, serving as an intermediary in the complex staking process. The service aims to facilitate the convenient and secure staking of virtual assets. With the latest addition of Polygon, the exchange now supports a total of five staking options, namely Ethereum, Cosmos, Cardano, Solana, and Polygon.New NFT collectionsThe exchange’s non-fungible token (NFT) marketplace, Upbit NFT, also recently opened trading, deposits, and withdrawals for new NFT collections based on Ethereum and Polygon. To celebrate this additional functionality, Upbit NFT will conduct Ethereum giveaway events for lucky participants until next Wednesday.