BLK.SW BlackRock up 96.87% intraday 16 Jan 2026 (SIX): watch CHF 433.20 support

The BLK.SW stock jumped intraday to CHF 852.85, a 96.87% rise on 16 Jan 2026 on the SIX exchange in Switzerland. The move follows overnight earnings attention and active re-pricing versus the previous close of CHF 433.20. Intraday traders should note the thin traded volume of 40.00 shares on the feed and monitor immediate support at CHF 433.20 as sellers test the new level. Our intraday high-volume movers angle focuses on the drivers behind the spike and realistic near-term forecasts.