As bitcoin, ethereum and other cryptocurrencies get increasing attention from investors, Wall Street and its traditional banks continue to adjust to the shift. Catch up on this week’s top stories highlighting the intersection of these old guard and new school areas of finance with this recap compiled by The Fly: 1. S. KOREA LOOKS TO BAN BITCOIN TRADING: South Korea regulators are planning legislation that bans trading of cryptocurrencies, BBC reported Thursday, with several exchanges in the country raided this week on suspicion of tax evasion. South Korea’s Justice Minister cites “great concerns” regarding virtual currencies. However, the country’s presidential office said a ban has not yet been finalized and is one measure that is being considered. 2. CHINA SEEKS TO CLOSE BITCOIN MINING: Chinese authorities are ordering the closure of operations that produce, or “mine”, cryptocurrencies and local regulatory officials across China are complying, the Wall Street Journal reported Wednesday. The order, which did not set a deadline, comes amid a broader clampdown on cryptocurrencies by China which has already resulted in the shuttering of digital currency exchanges. The country has accounted for roughly 80% of computer power linked to global bitcoin mining over the past 30 days. 3. BUFFETT “WILL NEVER” HOLD: On Wednesday, Berkshire Hathaway (BRK.A, BRK.B) Chairman and CEO Warren Buffett said his firm is not buying bitcoin, is not shorting bitcoin and “will never hold a position” in the cryptocurrency. “In terms of cryptocurrencies, generally, I can say with almost certainty that they will come to a bad ending,” he said, adding, “If I could buy a five-year put on every one of the cryptocurrencies, I’d be glad to do it but I would never short a dime’s worth.” 4. DIMON REGRETS ‘FRAUD’ CALL: JPMorgan (JPM) CEO Jamie Dimon said he regrets that he called bitcoin a fraud in September, CNBC reported Tuesday. “The blockchain is real,” Dimon said. “You can have cryptodollars in yen and stuff like that. ICOs … you got to look at every one individually. The bitcoin was always to me what the governments are going to feel about bitcoin when it gets really big. And I just have a different opinion than other people. I’m not interested that much in the subject at all.” 5. GUNDLACH SAYS HIGH IS IN: Billionaire investor Jeffrey Gundlach said on Wednesday he believes bitcoin has hit its high. “It’s just a thing that is out there, unproven,” he said, “I have a theory that bitcoin is very different than what people think… I do not own bitcoin. This type of investment is very, very different from my conservative DNA.” 6. GAIN CAPITAL CONTINUES ROLLOUT: On Monday, GAIN Capital (GCAP) announced the launch of Bitcoin trading in Australia and Singapore on the company’s City Index branded service, which is regulated by ASIC and MAS, respectively. GAIN plans to complete the global roll out of bitcoin trading in the coming months, launching in other markets in Asia and the United States. The company also plans to expand its cryptocurrency offering to include Ethereum and other digital currencies in early 2018. 7. RIPPLE: On Friday, MoneyGram (MGI) announced a partnership with Ripple to pilot XRP in their payment flows. As part of this agreement, both companies will also explore MoneyGram’s integration into Ripple’s ecosystem through xVia. XRP’s transaction fees are fractions of a penny, compared to Bitcoin fees of about $30 per transaction, and the average transaction time for XRP is two to three seconds. Seagate Technology (STX) invested in both the 2015 $28M Series A and 2016 $55M Series B fundraising rounds conducted by Ripple Labs, developer of XRP, a Seeking Alpha contribitutor was credited with highlight on Monday. Based on some assumptions and data from tech sites, the Seeking Alpha report hypothesized that Seagate may own over 4% of Ripple, worth about $7.8B. 8. KODAKCOIN: On Tuesday, Kodak (KODK) and WENN Digital, in a licensing partnership, announced the launch of the KODAKOne image rights management platform and KODAKCoin, a photo-centric cryptocurrency to “empower photographers and agencies to take greater control in image rights management.” The initial coin offering will open on January 31, 2018. 9. BITCOIN STOCK PLAYS: Cryptocurrency revenues have been pointed to as reasons to be bullish on Advanced Micro Devices (AMD) and Nvidia (NVDA) in select research. Overstock (OSTK), Digital Power (DPW), Long Blockchain (LBCC), Seven Stars Cloud Group (SSC), Riot Blockchain (RIOT), Longfin (LFIN), Pareteum (TEUM) and Social Reality (SRAX) are other stocks that have been touted, or promoted themselves, as a way to play the crypto theme. PRICE ACTION: As of time of writing, bitcoin was down roughly 17% this week to $13,674 in U.S. dollars according to CoinDesk. Bitcoin Investment Trust dropped about 10% this week to $1,925. 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