S&P evaporates 2.8 trillion in a single day, BTIG warns: This is not the bottom, the real sell-off has just begun

The US stock market experienced a classic risk repricing, but BTIG believes this is more like the opening act of a sell-off than a confirmation of a low.

During this decline, all S&P 500 sectors closed lower, with related market capitalization estimated to have evaporated by about $2.8 trillion in a single day. The VIX surged to its highest level since April, while the Philadelphia Semiconductor Index fell 12%, marking its worst single-day performance since 2020.

BTIG Chief Technical Strategist Jonathan Krinsky stated in his latest report that the market has shown early signs of "capitulation selling," but is still far from a true, comprehensive clearance. His core view is that it’s difficult for the market to form a significant bottom when breadth indicators remain elevated.

For investors, the risk is not limited to the already heavily sold AI and semiconductor sectors. BTIG warns that what matters more next is whether sectors previously seen as safe havens, such as healthcare and consumer staples, will begin to follow suit. Should the sell-off spread from heavyweight tech stocks to a broader array of equities, the S&P 500 could decline further.

The Sell-off Shows “Capitulation” Characteristics, But It’s Not Complete

From the trading view, this decline has already triggered several classic panic signals.

According to Jonathan Krinsky’s intraday statistics, declining volume on the NYSE accounted for about 86%, which would be the first time in nearly a year that down volume exceeded 80% for a day. All S&P 500 sectors dropped, with 10 out of 11 sectors down more than 1%. The VIX jumped about 10 points, the put/call ratio rose, and SPY trading volume may reach the highest since the March lows.

These signals are typically regarded as conditions close to a market bottom. A high proportion of declining volume means the sell-off is no longer confined to a handful of stocks, while the spike in volatility shows the market is rapidly reducing risk exposure.

But Krinsky believes these signals only indicate market panic, not that risk has been fully released.

Breadth Remains High, Lacking a Key Component for a Bottom Signal

BTIG is most focused not on the daily drop, but on market breadth.

Krinsky pointed out that before entering this downturn, nearly a quarter of S&P 500 components were overbought, and about 70% of components still closed above the 200-day moving average. This proportion is near the top decile of readings in the past two years.

In other words, most stocks hadn’t truly entered oversold territory. The decline was mainly concentrated in high-weight sectors such as AI and semiconductors, while many stocks in healthcare, consumer staples, and equal-weight indices were still near recent highs.

BTIG data shows that the proportion of S&P 500 components trading above the 200-day moving average was about 69.5% prior, close to the yearly high and significantly higher than the 40–45% seen around the March and late September lows.

Krinsky poses a question to investors trying to judge a bottom: can you find an important bottom that formed when this proportion was above 60%? He admits a similar situation did occur in July, but the subsequent rebound lasted only a few days and failed to produce a sustained rally.

The 200-Day Moving Average Holds Temporarily; BTIG Eyes 7,000 Points

In terms of technical levels, BTIG previously highlighted the S&P 500 200-day moving average at around 7323 points. This downturn’s intraday low touched 7362, just 39 points from that level.

Krinsky believes this area may see brief consolidation, but does not mean the decline is over. In his report, he wrote that the S&P 500 is more likely to eventually test levels close to 7,000 points, accompanied by further deterioration in market breadth.

According to BTIG, 7,000 points is about 4.5% below the 200-day moving average, and about 10% below the October high near 7,800. This would be closer to a typical correction of around 10%, rather than a simple recovery following a panic sell-off.

There is also pressure from capital flows. UBS has warned that risk control funds may sell over $100 billion in assets in the following trading day. Goldman Sachs’ John Flood noted a significant increase in client calls that day and referenced the saying “it’s always darkest before dawn,” but the market still has to contend with upcoming employment data releases.

Semiconductors Near Oversold Levels, But Rebounds May Offer Reduction Opportunities

BTIG believes that the sector closest to a clearance is semiconductors—the center of this sell-off.

Krinsky previously set a downside target for the iShares Semiconductor ETF, SOXX, to return to April’s breakout level. This would imply fully giving back the parabolic gains since April. By his estimate, SOXX still has about 10–13% further to fall to reach that target.

As SOXX approaches the target area, the short-term risk-reward for a rebound becomes more attractive. However, BTIG does not see this as a signal to rebuild positions.

Krinsky stated that semiconductors have confirmed a six-month top, so any rebound back to the $150–$155 range is more likely an opportunity to reduce risk exposure. The report notes SOXX was around $134 at the time, so $150–$155 would be roughly 12–16% higher than that level.

John Flood from Goldman Sachs also pointed out that the narrative behind the semiconductor sell-off is changing. The market is concerned that, with Democratic control of Congress and data center permitting issues in focus, there may be oversupply risks for chips and not enough data center shell capacity by 2028.

“Safe Sectors” May Become the Next Source of Risk

BTIG believes that the worst current risk-reward may not be in already battered semiconductors, but rather in the sectors capital has recently fled to—especially healthcare XLV and consumer staples XLP.

Krinsky notes that if semiconductors rebound, these defensive sectors are vulnerable to factor rotation and mean reversion. If semiconductors continue to decline, as recent trading shows, these sectors are also unlikely to remain immune.

BTIG charts show that XLV’s deviation from its 200-day moving average ahead of this downturn was the highest since the late 1990s. After intraday pullbacks, this ETF was still about 16.5% above its 200-day moving average.

The consumer staples sector was relatively resilient that day, falling only about 0.5%. However, Jim Chanos notes that switching from battered tech stocks to slow-growth consumer names—when the latter’s valuation reaches 30–100x earnings—may not be a wise choice.

Divergence Remains, But BTIG Bets on Sell-Off Broadening

There are dissenting voices in the market. Earlier in the day, Citadel Securities’ Scott Rubner said that after semiconductor valuations dropped to 13.8x, the path of least resistance was still higher. Goldman Sachs’ Rich Privorotsky believes that net market exposure is already low, making further declines in the broader market unlikely.

But the day’s action undermined those bullish arguments. Semiconductors continued to slide even in oversold conditions, defensive sectors also began to weaken, and all S&P sectors ultimately closed lower.

Krinsky has previously described a worse scenario: a “correlation one” sell-off, where oversold assets cannot rebound and overbought assets begin to correct. The current decline is showing early signs of this pattern.

BTIG’s core view is that a true bottom normally requires both the “generals” and “soldiers” to fall together. While heavyweight tech stocks have already been hit hard, most other components have yet to clear out. If those previously supportive stocks begin to decline, the downward pressure on the S&P 500 may not be fully released yet.