Index change event
S&P MidCap 400 & SmallCap 600 Additions & Index Changes: AVAV & VCTR – 15th July 2025
On 15 July 2025, S&P Dow Jones Indices announced 4 index changes affecting 3 companies in the S&P MidCap 400 and S&P SmallCap 600. The most notable move was AeroVironment joining the S&P MidCap 400 from the S&P SmallCap 600.
Announced
2025-07-15
Effective
July 17, 2025 at 5:00:00 PM
Indexes Affected
S&P MidCap 400, S&P SmallCap 600
4
Index Changes in Total
2
Additions
2
Deletions
1
Companies that changed index
What happened to the prices
By the next day's close, the 2 additions with price data had peaked at an average of +5.25%; the deletion, ChampionX, has no next-day prices. The moves are measured from the first extended-hours price after the 17:15 ET announcement.
No name moved against its group: every addition with price data opened the next day above the first price after the announcement.
In Short
4 index changes: 2 additions and 2 deletions.
1 company moved from one S&P index to another, out of 3 in total.
Largest peak move: Victory Capital Holdings, +6.67% by the next day's close.
The changes, index by index
An empty cell means the company was not in the S&P family before, or left it.
Company | Ticker | Source Index | Final Index | Effective Date |
|---|---|---|---|---|
S&P MidCap 400 Additions: AeroVironment (AVAV)
1 company joined the S&P MidCap 400 and 1 left, effective 18 July 2025. AeroVironment moved up from the S&P SmallCap 600 and ChampionX left the S&P family. AeroVironment peaked at +3.82% by the next day's close.
Company | Ticker | Source Index | Final Index | Effective Date |
|---|---|---|---|---|
AeroVironment | AVAV | S&P SmallCap 600 | S&P MidCap 400 | 07/18/2025 |
S&P SmallCap 600 Additions: Victory Capital Holdings (VCTR)
1 company joined the S&P SmallCap 600 and 1 left, effective 18 July 2025. Victory Capital Holdings is new to the S&P family and AeroVironment moved up to the S&P MidCap 400. Victory Capital Holdings peaked at +6.67% by the next day's close.
Company | Ticker | Source Index | Final Index | Effective Date |
|---|---|---|---|---|
Victory Capital Holdings | VCTR | S&P SmallCap 600 | 07/18/2025 |
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.
S&P 500 Additions Changes
Company | Ticker | Source Index | Final Index | Close Price | Open Price at Announcement | % Change +5 min | % Change +30 min | % Change at 20:00 Hrs | % Change by Next Day Open | % Highest Change by Next Day Close |
|---|---|---|---|---|---|---|---|---|---|---|
S&P MidCap 400 Additions Changes
Company | Ticker | Source Index | Final Index | Close Price | Open Price at Announcement | % Change +5 min | % Change +30 min | % Change at 20:00 Hrs | % Change by Next Day Open | % Highest Change by Next Day Close |
|---|---|---|---|---|---|---|---|---|---|---|
AeroVironment | AVAV | S&P SmallCap 600 | S&P MidCap 400 | 263.89 | 259.50 | +0.18% | +0.09% | -0.58% | +0.39% | +3.82% |
S&P SmallCap 600 Additions Changes
Not a Investment Advice
Company | Ticker | Source Index | Final Index | Close Price | Open Price at Announcement | % Change +5 min | % Change +30 min | % Change at 20:00 Hrs | % Change by Next Day Open | % Highest Change by Next Day Close |
|---|---|---|---|---|---|---|---|---|---|---|
Victory Capital Holdings | VCTR | S&P SmallCap 600 | 63.69 | 66.56 | +1.49% | +0.96% | +0.96% | +4.79% | +6.67% |
Not a Investment Advice
This page is research about past price behaviour. It is not a recommendation to buy or sell.