** Shares of companies expected to gain from Donald Trump's return to the White House down in premarket trading

** Trump Media DJT.O, Tesla TSLA.O, crypto-related companies and U.S. prison operators fall

** "It's a case of momentum working in both ways. It was momentum that powered these (stocks) higher and now the bulls have started to take some profit off the table" - Michael Brown, senior research strategist, Pepperstone

** DJT, which operates the Truth Social app, drops 4.9% after gaining in the last session on Trump's comment that he had no intention of selling his shares in the company

** Shares of EV-maker Tesla, another prominent "Trump trade", dip 2.5%

** TSLA touched $1 tln in market value on Friday on bets the automaker would benefit from CEO Elon Musk's backing of Trump

** Bitcoin, the world's best-known cryptocurrency BTC=, slips 2.6% after nearing $90,000 on Tuesday, boosted by potential support from the Trump administration

** Crypto-focused companies fall; crypto exchange Coinbase Global COIN.O down 4.3%, while software firm and bitcoin buyer MicroStrategy MSTR.O falls 2.4%

** Crypto miners Riot Platforms RIOT.O down 6.2%, while MARA Holdings MARA.O falls 5.2%

** Prison operators CoreCivic CXW.N and Geo Group GEO.N down 3.5% and 2.9%, respectively

(Reporting by Ragini Mathur)

((Ragini.Mathur@thomsonreuters.com;))