Check out the companies making headlines in premarket trading. Synopsys , Cadence Design Systems — Shares of the Silicon Valley chip designers rallied more than 5% and 6%, respectively. The U.S. government lifted restrictions on exporting chip-design software to China, according to announcements from companies in the industry. Datadog — The cloud monitoring provider surged more than 9% after S & P Global added it to the S & P 500 index , effective before trading starts July 9. The move will force passive index funds to buy Datadog shares to reflect the composition of the underlying, benchmark index. Tripadvisor — The online travel-review company popped 7% following a Wall Street Journal report that activist investor Starboard took a 9% stake. Robinhood — The online brokerage fell nearly 2%, giving back some of its 6% rally Wednesday. Robinhood was seen as a leading candidate to replace Juniper Networks in the S & P 500, and privately-held OpenAI is pushing back against Robinhood’s recent announcement of tokenized shares in the artificial intelligence startup. Crypto stocks — Stocks with ether (ETH) treasury ambitions extended gains a second day amid a surge of renewed interest in stablecoins and stock tokenization, both of which are largely supported by the Ethereum network. Bit Digital rose 6%, while betting platform SharpLink Gaming jumped 9%. BitMine Immersion Technologies was little changed but has surged more than 1,000% since anno …
