Stocks in Warren Buffett's Berkshire Hathaway portfolio were mixed Monday.

Among Buffett's holdings identified in Berkshire Hathaway's latest SEC filing, 18 rose while 29 fell.

StoneCo shares (STNE) - Get Report rose 88 cents, or 3.4%, to $26.75.

M&T Bank shares (MTB) - Get Report rose $1.76, or 1.07%, to $165.54.

Torchmark shares (TMK) rose 77 cents, or 0.88%, to $88.16.

Among Buffett stocks underperforming Monday, Axalta Coating Systems shares (AXTA) - Get Report fell 93.5 cents, or 3.64%, to $24.74.

Apple shares (AAPL) - Get Report fell $5.90, or 3.12%, to $183.10.

American Airlines Group shares (AAL) - Get Report fell 78 cents, or 2.46%, to $30.96.

Berkshire Hathaway A shares (BRK.A) - Get Report fell $1,119.23, or 0.36534%, to $305,235.77.

Berkshire Hathaway B shares (BRK.B) - Get Report fell 70 cents, or 0.34%, to $202.57.

So far this month, 11 of Buffett's stocks have gone up, while 36 have lost ground.

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