US STOCKS-S&P 500 rises to record, Nasdaq climbs to 14-year high
* S&P 500 hits record, Nasdaq at 14-year high
* Insurance stocks rise after Humana comments
* Men's Wearhouse raises offer for Jos. A. Bank
* Indexes up: Dow 1.1 pct, S&P 1.1 pct, Nasdaq 1.1 pct
By Caroline Valetkevitch
NEW YORK, Feb 24 (Reuters) - U.S. stocks jumped on Monday, with the S&P 500 climbing above key resistance to a record high, as optimism over merger activity helped Wall Street erase this year's early weakness.
Gains were broad, with nine of the 10 S&P 500 sectors up on the day and a number of bellwethers, including Caterpillar Inc and Merck & Co, hitting 52-week highs.
Among merger and acquisition news, RF Micro Devices Inc agreed to buy TriQuint Semiconductor Inc for about $1.6 billion, while Men's Wearhouse Inc raised its cash tender offer for rival men's clothing retailer Jos. A. Bank Clothiers Inc to $63.50 per share from $57.50.
With the day's gains, the S&P 500 turned positive for the year while the Nasdaq hit a 14-year high. More than two-thirds of companies traded on the New York Stock Exchange rose on the day, while 63 percent of Nasdaq-listed companies gained. Continuación...