Warren Buffett's Berkshire Hathaway Inc on Friday said second-quarter profit soared 41 percent to a record high.
Chevron reported second-quarter earnings on Thursday that beat Wall Street's expectations.
Procter & Gamble reported a 37 percent rise in quarterly profit, helped by lower operating costs.
The electric car maker posted second-quarter earnings per share of 11 cents, excluding items, compared to 20 cents a share a year ago.
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