Nokia's share price has soared by around 150 percent over the past year, partly driven by the rise of AI and data centres.Nokia headquarters in Espoo's Karaportti district last autumn. Image: Sasha Silvala / YleYle News10:32The Helsinki Stock Exchange had a brisk day of gains on Friday. The general index exceeded the 14,000 point mark in the morning. By the close of trading at 6.30pm, the index had risen by 2.1 percent to 14,222 points.That was the first time that the OMX Helsinki PI index surpassed the 14,000-point barrier since mid-December 2000.The biggest gainer of the day – and by far the most traded stock – was Nokia, a digital networking company that has benefitted from the surge in AI and data centres.Nokia's share price rose by almost 10 percent on Friday to around 13.30 euros. That’s up from around 5.50 euros at the beginning of the year.Investments by AI chipmaker NvidiaThe value of trades in its stock reached almost 240 million euros, while the second most traded blue chip, Konecranes, saw around 85 million euros in transfers.Altogether, close to 50 million shares changed hands.Nokia's share price has soared by around 150 percent over the past year, partly driven by big investments from American AI chipmaker Nvidia.Earlier this month, business daily Kauppalehti reported that Finland broke from the EU line and leaned toward Washington to protect Nokia as part of the US-led Pax Silica initiative.After helping Finland emerge from the severe recession of the 1990s, Nokia became the world’s biggest phonemaker in 1998, a status it held for about a decade. In 2014, it sold off its phone business to Microsoft.