United States based Bitcoin Exchange
Bittrex.com launched in 2014 is the best bitcoin exchange for US residents to buy and sell cryptocurrencies. They are one of the few exchanges to have never been hacked.
Binance Launches US Trading Platform
You can now buy and sell bitcoin and other cryptocurrencies at Binance US. Binance now allows residents of the United States to buy bitcoin with a bank account. In addition to bitcoin, you can buy Litecoin (LTC), Ripple (XRP), Ethereum (ETH), Bitcoin Cash (BCH), and Binance Coin (BNB). Binance plans to list more crypto assets for trading when regulatory approval allows them to.
Bitcoin Exchange in The U.S.
Gemini.com bitcoin exchange is the latest project from Cameron and Tyler Winklevoss. They have been in the bitcoin ecosystem for a long time and spent years developing their exchange, which they say is targeted towards Wall Street traders who want to buy bitcoin in the United States. Unlike Coinbase, Gemini is a trading platform ideal for more traditional investors. Use ACH or Wire Transfer to deposit USD, then place an order to buy bitcoin at your desired entry price. In this peer 2 peer market you will be buying bitcoin directly from other sellers rather than from the company itself. Gemini offers lower exchange fees than Coinbase and is tailored to high volume institutional traders.
Once you signup at Gemini you can see the live orderbook, showing the current bids and asks for Bitcoin. If there is not enough liquidity for you to buy all the bitcoin you want, they also have Over-The-Counter Bitcoin auctions every day for high volume traders to invest with minimal slippage.