Government action to stem the recent credit crisis on Wall Street sent the stock market climbing more than 400 points again on Friday, as investors dove back in to bank stocks with abandon. The Dow Jones Industrial Average was recently up more than 425 points, or 3.87 percent, at 11410, off 0.5 percent on the week. Twenty-three of its 30 components, including all the financial names, advanced. Citigroup was the strongest of the group, rallying 24 percent. The S&P 500 leapt 3.4 percent to 1248.04, off 0.3 percent on the week. The technology-heavy Nasdaq Composite Index jumped 2.5 percent to 2254.26, down0.3 percent on the week. The small-stock Russell 2000 was up 3.2 percent at 746.50, up 3.6 percent on the week. The American Stock Exchange Composite Index was up 58.32, or 3.11 percent, to close at 1,931.05. The New York Stock Exchange Composite Index was up 411 points, or 5.29 percent, to close at 8,186.47.