Stocks jumped Monday as a bipartisan deal to end the federal government shutdown gained traction in the Senate, though it lacked any clear resolution to expiring health care tax credits that Democrats have been fighting for.

Investor optimism for an end to the longest federal government shutdown in U.S. history buoyed the S&P 500 by 77 points, or 1.2%, to 6,806 in early Monday trading. The Dow Jones Industrial Average gained 320 points, or 0.7%, to 47,308, while the tech-heavy Nasdaq composite surged 1.8%.

Health insurers were among the losers early Monday as a lack of clarity on health care subsidies clouded their futures. Cigna shares dipped 1.7%, while Humana slipped 2%.

Sunday's test vote marked the beginning of a series of procedural maneuvers aimed at passing a compromise

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