NAIROBI, Jan. 18 (Xinhua) -- The Nairobi Securities Exchange (NSE) posted one of its best runs in recent times this week as all of its key indices and investors' wealth went up despite the terror attack on Tuesday.

The NSE 20 Share Index rose 57.34 points during the week to stand at 2,851.77 at the close of Friday, boosted by a rally in blue-chip stocks, market data showed.

Similarly, the All Share Index gained 2.66 points to settle at 145.27 while the NSE 25 Share Index rose 103.33 points to settle at 3,667.70, according to the NSE.

Market capitalization, which measures shareholders' wealth, closed Friday at 2.17 trillion Kenyan shillings (21.5 billion U.S. dollars), up from 21.2 billion dollars at the start of Monday.

"The bourse ended the week on a high note with 132 million shares valued at 34.6 million dollars transacted, against 21.7 million dollars from 97 million shares posted the previous week," said the NSE in a statement.

One of the stocks that boosted the market was Safaricom, which moved 91 million shares valued at 20.7 million dollars, representing some 60 percent of the week's traded value.