(Updates at market close)

* TSX ends up 0.3% at 34,517.70

* Tech rises 2.6%, with Shopify ( SHOP ) up 7.4%

* Materials group adds 1.9% as gold rises

* CIBC ends 5.4% lower after earnings report

By Fergal Smith

TORONTO, May 28 (Reuters) - Canada's main stock index

rose on Thursday, led by technology and metal mining shares, as

the prospect of a ceasefire extension in the Iran war boosted

investor sentiment.

The Toronto Stock Exchange's S&P/TSX composite index

ended up 105.65 points, or 0.3%, at 34,517.70.

* The S&P 500 and the Nasdaq posted record closing highs

after news reports said the U.S. and Iran had reached a draft

agreement to extend their ceasefire for 60 days, while investors

also digested key inflation data.

* "Today, we are seeing the TSX really being driven less by

individual stock stories and more by macro economics," said

Robert Gill, a portfolio manager at Fairbank Investment

Management.

* The technology sector rallied 2.6%, with shares of

e-commerce company Shopify Inc ( SHOP ) up 7.4%.

* The materials group which includes metal mining

shares, added 1.9% as gold prices climbed.

* Canadian lenders Royal Bank of Canada ( RY ), TD Bank

and CIBC beat second-quarter profit estimates,

helped by strong domestic growth and bucking concerns arising

from trade uncertainty and the impact of Middle East conflicts

on the economy.

* Shares of TD rose 0.7% but RBC was down 0.4% and CIBC

ended 5.4% lower.

* "You are seeing a bit of valuation discipline returning in

certain segments of the market," Gill said. "Strong gains to the

recent highs are resulting in profit taking in some of the

banks, some of the financials and even in some of the commodity

names."

* Energy fell 0.5%, extending its pullback from an

18-year high reached last week. The price of oil settled

0.25% higher at $88.90 a barrel.

* Shares of ATS Corp ( ATS ) were down 14.3% after the

automation solutions provider missed estimates for quarterly

earnings.