NEW YORK — Financial markets remained on edge Friday after the Bush administration’s proposal for a $700 billion banking bailout ran into opposition from Republican lawmakers. Stocks ended mixed, with big financial companies lifting the Dow Jones industrials more than 120 points, but worries about smaller banks and parts of the technology sector taking much of the market lower.

With no deal in place as trading ended Friday, investors were certainly going to be uneasy throughout the weekend.

The Dow rose 121.07, or 1.10 percent, to 11,143.13. Gains by JPMorgan Chase & Co. and Bank of America Corp. gave support to the 30-stock index. Most of their advance came late in the session as investors placed bets that a deal would emerge from Washington over the weekend. But with so much uncertainty, the big banks are seen as the most secure, and therefore likely to withstand whatever problems lie ahead.

Broader indicators were mixed. The Standard & Poor’s 500 index rose 4.09, or 0.34 percent, to 1,213.27, and the technology-heavy Nasdaq composite index fell 3.23, or 0.15 percent, to 2,183.34.

For the week, which again saw triple-digit moves in the Dow, the blue chip average lost 2.15 percent, the Nasdaq declined 3.98 percent and the Nasdaq fell 3.33 percent.

The market was also uneasy after Washington Mutual Inc. became the largest U.S. bank to fail. The Federal Deposit Insurance Corp. seized WaMu on Thursday and then sold the thrift’s banking assets to JPMorgan for $1.9 billion. It was the latest financial firm to collapse under the weight of enormous bad bets on the mortgage market.