Event study · prices through 12 Nov 2026 · not investment advice

When the founder leaves, does the selloff pay?

NVIDIA fell sharply when Jensen Huang resigned over a personal scandal. We looked at 26 past cases where a CEO or founder was hit by personal-conduct news or left suddenly, and asked what the stock did next against the S&P 500.

Short answer: history does not support "buy the drop" as a rule here. When a hired CEO left over a scandal, the next year was close to a coin flip. When the departing leader was the founder or the dominant figure, all five stocks lagged the S&P 500 over the next year, by 21 to 46 points. The samples are small, and the cases were picked by hand.

What happened at NVIDIA

Jensen Huang resigned as CEO on 12 November 2026, effective immediately. This followed reports of a relationship with a suspected Chinese intelligence asset, then a report of a relationship with an executive who reported to him. The CFO is interim CEO, and reportedly there was no formal succession plan. JPMorgan flagged a higher risk of tighter China export limits. Earnings are due 17 November.

NVDA opened about 12% lower and closed at $165.48, down 4.75% on the day. Since 3 November it is down 20%, while the semiconductor ETF (SMH) is down about 3% over the same days. The market is treating this as an NVIDIA-specific loss. Losing a 33-year founder with no successor is a business question, even though the trigger was personal.

The four groups, one year later

Founder or dominant figure left
−28.8
median pts vs SPY · 0 of 5 beat
Hired CEO replaced
−1.5
median pts vs SPY · 6 of 12 beat
Leader stayed
−4.9
median pts vs SPY · 3 of 6 beat
Sudden loss, no scandal
+11.2
median pts vs SPY · 2 of 3 beat

When the leader stayed, 4 of 6 stocks were ahead of SPY at three months (median +11.2 points), but the gain did not reliably last a year. In 21 of 26 cases the stock fell at some point in the next three months, typically by about 10% against its market.

Every case

The "shock" is the two trading days around the news, so after-hours announcements are caught. Later returns run from the end of those two days. "vs SPY" is the stock's return minus SPY's, in percentage points. Returns include dividends.

CaseShockSPY3 moSPY 3 movs SPY1 yrSPY 1 yrvs SPY, 1 yr

¹ US-listed shares (ADRs), in dollars. ² Home-market listing in its local currency (yen, Swiss francs, won), so "vs SPY" includes currency moves and the home market's own performance. Against their own markets, Nissan was −34 and BP −33 over the year, so part of their lag is the UK and Japanese markets trailing the US.

A broader check: 489 large drops

To see whether the pattern holds outside hand-picked cases, we took about 50 large US companies from 2010 to 2026 and found every day a stock lagged the S&P 500 by 7% or more. We split the drops by whether they came within three days of an earnings report, a rough stand-in for business news. "Normal" is the same stocks on any ordinary day, which corrects for the list being mostly today's winners.

Median return vs S&P 5001 month3 months1 year
Drop with no earnings report (n = 213)+0.6+1.8+8.3
Normal days, same stocks+0.4+1.3+5.2
Drop on earnings (n = 276)−0.9−0.4+4.2
Normal days, same stocks+0.3+1.0+4.2

Drops on earnings news tend to keep drifting down for about a month. Drops without earnings news recover slightly better than normal. That matches published research (Chan 2003; Savor 2012): price shocks that carry information persist, ones without information partly reverse. The gap is small, about half a point at three months and three points at a year, and the averages look much better than the medians only because of a few huge winners such as Tesla and AMD.

Before you lean on this

What would settle it for NVIDIA

The useful question is narrower than "is this a bargain": does Huang leaving change whether NVIDIA's chips stay the default for AI? The next real evidence is the 17 November report and its guidance, then who is named CEO and whether China export rules tighten. Waiting for that costs relatively little: after the CEO cases above, the stock's worst point in the following month averaged about −7%.