The selloff in chip-related shares across Japan and South Korea highlights how closely the Nikkei tracks sentiment in Samsung and the broader Korean market, even when the trigger is a strong earnings forecast rather than a weak one. The rotation out of technology and into financials and other value names suggests investors are using the dip to reposition rather than reducing overall risk appetite, particularly with the Topix having touched a fresh record earlier in the session. The divergence from Wall Street's overnight high also points to a regional, sector-specific dynamic rather than a broader shift in global risk sentiment.---Asia-Pacific stocks fell broadly on Tuesday as Samsung shares slumped despite a bumper profit forecast, dragging down regional chip stocks, even as Wall Street hit fresh highs overnight and Japanese investors rotated into value shares.Summary:Asia-Pacific markets traded broadly lower early Tuesday, diverging from Wall Street's overnight record highJapan's Nikkei fell around 1.3%, weighed down by semiconductor-related heavyweights tracking a slide in Samsung ElectronicsThe broader Topix slipped slightly after touching a fresh record high earlier in the session, as investors bought financial and other value stocksSamsung Electronics fell more than 5% despite forecasting a roughly 19-fold jump in second-quarter operating profit from a year earlierSouth Korea's KOSPI slumped more than 5% in early tradeJapanese banking shares rose, along with Toyota MotorAsia-Pacific stock markets fell broadly on Tuesday, breaking ranks with Wall Street, where the Dow hit a fresh record overnight, as a sharp slide in Samsung Electronics dragged down chip-related shares across the region. Japan's Nikkei share average fell around 1.3%, weighed down by semiconductor heavyweights, after Samsung shares tumbled even as the memory chipmaker forecast a roughly 19-fold jump in second-quarter operating profit from a year earlier. The broader Topix index slipped only modestly, however, after touching a fresh record high earlier in the session, as investors rotated into financial shares and other previously beaten-down value names.Market participants said the selloff reflected profit-taking in chip stocks rather than concern over Samsung's outlook itself, with the earnings forecast comfortably beating expectations. Traders noted the market was selling chip-related shares while buying value stocks that had become comparatively cheap. Japan's tech-heavy Nikkei tends to move in tandem with South Korea's benchmark index given their shared exposure to semiconductor stocks, and that pattern held on Tuesday as South Korea's KOSPI slumped more than 5% in early trade, tracking Samsung's decline.Not all sectors moved lower. Japanese banking shares rose, benefiting from the broader rotation into value stocks, while Toyota Motor also advanced. The divergence between chip-related shares and the rest of the market suggests investors are treating the selloff as sector-specific rather than a signal of broader risk aversion, particularly given the Topix's earlier record high and Wall Street's continued strength overnight.The moves underscore how sensitive Asian equity markets remain to swings in the semiconductor sector, even when the underlying earnings news is positive, as investors weigh near-term profit-taking against the sector's longer-term growth outlook tied to memory chip demand. This article was written by Eamonn Sheridan at investinglive.com.