KOSPI Plunges 6% as AI Selloff Deepens: 4,500 Next Stop

South Korea's KOSPI fell 6.02% on November 6 and briefly tripped a circuit breaker after dropping more than 8% intraday, as a global technology selloff accelerated and investors dumped the market's semiconductor leaders. The plunge marks the sharpest expression yet of a problem that has been building since American politics shifted underneath the AI trade.

The trigger sits in Washington. Following the Democratic Party's strong performance in the US midterm elections, investors reassessed the possibility of tighter regulation on AI infrastructure, particularly data-center construction, according to TradingView analyst Kap_Waves. Electricity consumption, water usage and permitting are the three pressure points the market now watches.

That matters more in Seoul than almost anywhere else. South Korea runs a heavy reliance on semiconductor exports and occupies a central position in the global AI supply chain. Any slowdown in American data-center buildout hits Samsung Electronics and SK Hynix first. Foreign investors accelerated their selling in exactly those two names during the November 6 rout.

How far can the index fall?

The technical picture frames the damage. Kap_Waves' Elliott Wave analysis suggests the preceding five-wave advance completed near the 9,000 region. Since that high, the index has moved into a larger corrective phase, and the latest price action indicates the correction still has room to run.

Two Fibonacci extension levels anchor the downside map:

• 4,502.75 — the −0.272 extension, the primary projected downside objective.
• 3,670.84 — the −0.618 extension, the alternative deeper corrective objective.

The chart currently favors a move toward 4,502.75 before any recovery develops. The immediate question, as the analysis frames it, is whether the current decline is approaching that projected completion region.

What happens after the index reaches the target?

The preferred scenario anticipates additional downside toward 4,502.75, followed by a completion of the corrective structure around that region. Once the correction bottoms, the chart projects a recovery toward approximately 5,900. That would mark the transition from the current corrective phase into a new recovery leg.

One caveat carries weight: the completion of the correction has not yet been confirmed. A projected floor is a reference point, not a guarantee, and traders pricing in a rebound at 4,502.75 are positioning ahead of confirmation rather than after it.

What if the selling does not stop?

The alternative scenario is uglier. If selling pressure persists and the 4,502.75 region fails to produce a meaningful recovery, the deeper −0.618 extension at 3,670.84 becomes the operative target. That level would imply a more extensive correction than the current baseline anticipates — roughly another 18% below the primary objective.

The decision tree for investors is therefore binary. Either the primary support zone holds and a recovery toward 5,900 begins, or the market rolls over toward 3,670.84 and the corrective phase stretches well beyond what the preferred count allows.

Why Seoul absorbs the AI shock fastest

The mechanism is concentration. South Korea's export economy leans on memory chips, and memory chips lean on hyperscaler capital spending. When US policy risk raises the cost or timeline of data-center construction — through grid constraints, water permits or licensing delays — the expected revenue pipeline for Korean chipmakers compresses. Foreign funds, which hold large positions in Samsung Electronics and SK Hynix, repriced that risk on November 6 and hit the sell button fast enough to breach the 8% intraday threshold that activates Korea's market circuit breaker.

The next signal to watch is whether the index holds the 4,502.75 region on a closing basis. Until then, the deeper 3,670.84 reference — and the regulatory debate in Washington that started this slide — remains firmly in play.