Check out the companies making headlines after the bell : GameStop — The gaming retailer was trading 7% lower after posting mixed second-quarter results. While revenue fell to $798 million from $1.16 billion a year ago, GameStop said net income rose to 4 cents per share from a loss of 1 cent per share a year ago. The company also announced it would sell up to 20 million shares of its class A common stock through Jefferies. Petco Health and Wellness — Shares rose 4% after the pet retailer posted second-quarter earnings that came in line with expectations, while Petco’s revenue of $1.52 billion was slightly below the $1.53 billion analysts surveyed by LSEG had anticipated. For its third quarter, the company expects to post an adjusted loss of 3 cents to 4 cents per share, while analysts had estimated a loss of 4 cents per share. Dave & Buster’s Entertainment — The arcade chain’s stock climbed 8% after Dave & Buster’s posted earnings per share of 99 cents, while analysts polled by LSEG had expected just 84 cents. However, the company’s revenue of $557 million came below the forecast $561 million. Morgan Stanley — The bank stock fell 1% following a downgrade to neutral from buy at Goldman Sachs. Goldman analyst Richard Ramsden wrote that he sees more near-term challenges for the bank.