GrubHub and Uber have beaten out Tesla as the most profitable short bets this year. Here are the top 10 most lucrative shorts in the US.

Ticker: MNK

Market capitalization: Micro

Average short interest: $348 million

Year-to-date stock borrow cost: -$1.5 million

Year-to-date mark-to-market return: $452 million

Source: S3 Partners

Ticker: NIO

Market capitalization: Small

Average short interest: $434 million

Year-to-date stock borrow cost: -$95 million

Year-to-date mark-to-market return: $475 million

Source: S3 Partners

Ticker: LYFT

Market capitalization: Large

Average short interest: $1 billion

Year-to-date stock borrow cost: -$64 million

Year-to-date mark-to-market return: $499 million

Source: S3 Partners

Ticker: OXY

Market capitalization: Large

Average short interest: $1.1 billion

Year-to-date stock borrow cost: -$3 million

Year-to-date mark-to-market return: $507 million

Source: S3 Partners

Ticker: M

Market Capitalization: Mid

Average short interest: $1 billion

Year-to-date stock borrow cost: -$2.6 million

Year-to-date mark-to-market return: $536 million

Source: S3 Partners

Ticker: PCG

Market capitalization: Mid

Average short interest: $454 million

Year-to-date stock borrow cost: -$1.3 million

Year-to-date mark-to-market return: $597 million

Source: S3 Partners

Ticker: DD

Market capitalization: Large

Average short interest: $715 million

Year-to-date stock borrow cost: -$1.9 million

Year-to-date mark-to-market return: $613 million

Source: S3 Partners

Ticker: UBER

Market capitalization: Large

Average short interest: $1.5 billion

Year-to-date stock borrow cost: -$28.3 million

Year-to-date mark-to-market return: $660 million

Source: S3 Partners

Ticker: GRUB

Market capitalization: Mid

Average short interest: $1.1 billion

Year-to-date stock borrow cost: -$3 million

Year-to-date mark-to-market return: $810 million

Source: S3 Partners