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Index change event
S&P index changes, effective 28 November and 2 December 2025
Sandisk moved up from the SmallCap 600 to the S&P 500 in place of Interpublic Group.
Announced
2025-11-24
Effective
November 27, 2025 at 4:00:00 PM
Indexes Affected
2
What happened to the prices
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Sandisk moved up two index levels in one step.
The SmallCap 600 gained three names over two dates.
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The changes, index by index
An empty cell means the company was not in the S&P family before, or left it.
S&P 500
Company | Ticker | Source Index | Final Index | Effective Date |
|---|---|---|---|---|
Sandisk | SNDK | S&P SmallCap 600 | S&P 500 | 11/28/2025 |
S&P MidCap 400
Company | Ticker | Source Index | Final Index | Effective Date |
|---|---|---|---|---|
S&P SmallCap 600
Company | Ticker | Source Index | Final Index | Effective Date |
|---|---|---|---|---|
First Interstate BancSystem | FIBK | S&P SmallCap 600 | 12/02/2025 | |
PTC Therapeutics | PTCT | S&P SmallCap 600 | 11/28/2025 | |
Upwork | UPWK | S&P SmallCap 600 | 11/28/2025 |
S&P 100
Company | Ticker | Source Index | Final Index | Effective Date |
|---|---|---|---|---|
Price reaction
The close price is the last price before the announcement. All percentages are measured from the open price after the announcement.
Additions
Company | Ticker | Close Price | Open Price at Announcement | % Change +5 min | % Change +30 min | % Change at 20:00 Hrs | % Highest Change by Next Day Close |
|---|---|---|---|---|---|---|---|
Sandisk | SNDK | 226.96 | +0.93% | ||||
First Interstate BancSystem | FIBK | 31.72 | +7.98% | ||||
PTC Therapeutics | PTCT | 79.83 | +7.25% | ||||
Upwork | UPWK | 18.55 | +8.84% |
Deletions
Company | Ticker | Close Price | Open Price at Announcement | % Change +5 min | % Change +30 min | % Change at 20:00 Hrs | % Highest Change by Next Day Close |
|---|---|---|---|---|---|---|---|
Interpublic Group | IPG | ||||||
Hanesbrands | HBI | ||||||
Premier | PINC |
Not a Investment Advice
This page is research about past price behaviour. It is not a recommendation to buy or sell.
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