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Market Anatomy, Monday, October 26, 2026

Published Oct 26, 2026, 4:21 PM ET

Market Anatomy, Monday, October 26, 2026

On October 26, 2 of the 8 tracked indices were above their 50-day average. Tesla, Inc. rose 5.2% and Dollar General fell 3.2%, the biggest moves with a cause on record.

Market Anatomy as drawn for the share card of Monday, October 26, 2026. The same picture is on its share card.

Today's standout, the names around it and how it sits against the market. Tap a name, a sector or an index to move.

Today's relationship

Tesla, Inc.

Tesla, Inc. made the largest move with a cause on record.

Tesla, Inc.

TSLA · close 391.62

1.60%
+5.21%1d
Tesla, Inc., stored closes
  • Tesla, Inc.+26.6%

Stored daily closes.

Nearest connections

Stored cause

2026-10-23: Tesla-SpaceX merger speculation gains attention as earnings season concludes

Index membership

In the S&P 500 (holdings file dated 2026-10-23): weight 1.60%, rank 9 of 503.

Sector

Consumer Discretionary. From the S&P 500 holdings file dated 2026-10-23. The Consumer Discretionary fund moved +1.03%, 3 of 11 sectors.

Against the market

Tesla, Inc. moved +5.21% on the session, 4.52 points ahead of the S&P 500.

Its sector

Largest Consumer Discretionary names in the S&P 500, file dated 2026-10-23

  • HDHome Depotweight only0.49% of the S&P 500
  • MCDMcdonaldsweight only0.27% of the S&P 500
  • TJXTjx Companies Inc /De/weight only0.24% of the S&P 500
  • BKNGBookingweight only0.18% of the S&P 500
  • SBUXStarbucksweight only0.17% of the S&P 500
  • LOWLowes Companiesweight only0.17% of the S&P 500

Indices

Weights, ranks and sectors come from the stored holdings files: S&P 500 (dated 2026-10-23).

The day's board

Market participation

25%

2 of 8 tracked indices above their 50-day average

Counted over ^GSPC, ^IXIC, ^DJI, ^RUT, ^FTSE, ^N225, ^GDAXI, 000001.SS. This is a reading across whole market indices, not a count of the companies inside any one of them.

Today's movers

Sectors, one session

Each bar is scaled against the widest move of the day. Tap a sector to see its largest names.

Key takeaways

  1. 1

    The S&P 500 rose 0.70% against 0.35% for the equal weight fund, a gap of 0.35 points. The index outpaced the average constituent, so the gain was narrower than the headline suggests.

  2. 2

    Only 2 of 8 tracked indices sit above their 50-day average, even as the S&P 500 and Nasdaq both rose. Participation stays thin relative to the price gains, and the VIX eased to 18.52.

  3. 3

    Technology rose 1.69% and Industrials 1.42% while Communication Services fell 1.57%. That 3.26 point spread sits beneath a Dow gain of only 0.28%, well below the Nasdaq's 0.82%.

  4. 4

    Akamai rose 5.31% with no stored evidence, and Strategy and GameStop fell with only filing headlines that do not explain the moves. These three remain unexplained.

The full day: index block, sentiment, every mover and the open questions
7,676.77 +0.70%1d

Capitalisation weighted, so a move in the largest companies moves it more than a move in the smallest.

the last 40 stored closes, scaled to their own range
26,169.38 +0.82%1d

Every Nasdaq listing, weighted by capitalisation and heavy in technology.

52,361.58 +0.28%1d

Thirty names weighted by price rather than by capitalisation, so it can disagree with the S&P for arithmetic reasons alone.

2,786.42 +0.38%1d

Small capitalisation names. Read against the S&P, it is the size half of how broad a day was.

217.29 +0.35%1d

The same five hundred companies weighted equally, so the largest names count no more than the smallest. Read against the cap-weighted index, the gap is how much of the day belonged to the biggest companies.

Cap weight against equal weight+0.35pp

The cap-weighted index outran the equal-weighted one, so the largest companies carried more of the session than their number.

Sentiment

Sentiment composite
32 +11.23%1d

This system's own composite of up to seven stored inputs, 0 (extreme fear) to 100 (extreme greed), computed after each close; not CNN's index (work item #699). Context for whether sentiment confirms the tape or contradicts it.

18.39 -5.45%1d

Expected thirty day volatility from S&P 500 options. Rising with the index is the contradiction worth seeing.

Open questions

  • What is driving Vicor?+10.64%
    Read for this move: the stored stories naming Vicor, its filings and corporate actions, over the 7 days to 2026-10-26.
  • Why did Jetblue Airways fall?-9.89%
    Read for this move: 1 stored story naming Jetblue Airways, its filings and corporate actions, over the 7 days to 2026-10-26.
  • What is driving Lumentum?+8.19%
    Read for this move: the stored stories naming Lumentum, its filings and corporate actions, over the 7 days to 2026-10-26.
  • What is driving Akamai Technologies?+5.31%
    Read for this move: the stored stories naming Akamai Technologies, its filings and corporate actions, over the 7 days to 2026-10-26.
  • What is driving Mongodb?+4.86%
    Read for this move: the stored stories naming Mongodb, its filings and corporate actions, over the 7 days to 2026-10-26.
  • Why did Strategy fall?-4.24%
    Read for this move: 2 stored stories naming Strategy, its filings and corporate actions, over the 7 days to 2026-10-26.

Built in code from the movers whose evidence did not resolve, so no written summary can shorten this list.

Today's key movers

+10.64%
VICR 194.77
Largest move on the strip

Read for this move: the stored stories naming Vicor, its filings and corporate actions, over the 7 days to 2026-10-26.

Moved 10.6%, at or above the 3% floor for this strip

-9.89%
JBLU 2.37
2nd of 7 on the strip

Read for this move: 1 stored story naming Jetblue Airways, its filings and corporate actions, over the 7 days to 2026-10-26.

Moved 9.9%, at or above the 3% floor for this strip

+8.19%
LITE 818.1
6.5 pts ahead of XLK

Read for this move: the stored stories naming Lumentum, its filings and corporate actions, over the 7 days to 2026-10-26.

Moved 8.2%, at or above the 3% floor for this strip

+5.31%
AKAM 98.5
3.6 pts ahead of XLK

Read for this move: the stored stories naming Akamai Technologies, its filings and corporate actions, over the 7 days to 2026-10-26.

Moved 5.3%, at or above the 3% floor for this strip

+4.86%
MDB 389.11
6th of 7 on the strip

Read for this move: the stored stories naming Mongodb, its filings and corporate actions, over the 7 days to 2026-10-26.

Moved 4.9%, at or above the 3% floor for this strip

-4.24%
MSTR 139.82
7th of 7 on the strip

Read for this move: 2 stored stories naming Strategy, its filings and corporate actions, over the 7 days to 2026-10-26.

Moved 4.2%, at or above the 3% floor for this strip