Today's sell-off may be giving gold investors a buying opportunity. Shares of South African gold mining stock Gold Fields (GFI -7.71%) slid 8% through 1:50 p.m. ET Friday after the company reported disappointing earnings results for the first half of 2024. That's not my word -- "disappointing." It's how CEO Mike Fraser himself described a first half in which gold production dropped 20%, leading to a 16% decline in net income to $0.43 per diluted share. Gold Fields' first-half earnings Gold retails for more ...