REAL-TIME GLOBAL RESEARCH
US Index Update
Research evidence excerpt
US Index Update
Global Quantitative and Derivatives Strategy Team
Week of Aug 17, 2026 As of Aug 17, 2026 (Close)
g
Min Moon
g
Wednesday, August 19, 2026
• R1000 Birkenstock is distributing its common stock in a public secondary offering. In the offering, Birkenstock shareholders will offer 25,523,000 shares of its common stock. Concurrently, Birkenstock will repurchase 12,761,613
shares of its stock in connection with the offering. FTSE Russell has determined this equity offering satisfies the criteria for an intra-quarter update. The equity offering will be effective in the FTSE Russell Indexes on August 19,
2026 (after the close).
• R1000
Banco Santander (SAN.MC; Non-US FTSE Russell Index Member) will acquire Webster Financial for stock and cash. In the transaction, each share of Webster Financial will be exchanged for $48.75 in cash and 2.0548
American depositary shares (ADS) of Banco Santander, with each whole ADS representing one ordinary share of Banco Santander. The merger was approved at Webster Financial's shareholder meeting on May 26, 2026.
Webster Financial will be removed from the FTSE Russell Indexes upon completion of the merger.
Shares Out (M)
Index
Event
Announcement
Date
Effective on
Close of
Ticker
Name (Sector**)
Event Detail
Last Price
Old
New
S&P 400
Add
Delete
13-Aug-26
19-Aug-26
SUI
WBS
Sun Communities (RE)
Webster Finl (FN)
Replacing WBS
Acquired
$ 121.36
$ 78.69
0.00
162.03
123.23
0.00
R1/RS
R2/RS
S Inc
Delete
S Inc
Confirmed
19-Aug-26
BIRK
WBS
UUUU
Birkenstock Hold
Webster Finl
Energy Fuels Inc
Equity Offering
Acquisition
Merger
40.05
160.82
244.91
52.81
0.00
254.40
37.86
78.69
14.79
Current
Wgt
0.000%
0.351%
New
Wgt
Weight
Change
Indexer Flows
Gross
Shares
(M)
0.392% 0.392%
11.94
0.000% -0.351% -16.48
Net
Shares
(M)
11.94
(21.34)
0.39
-4.86
0.93
0.39
(21.34)
0.93
Days to
Trade
7.19
(4.26)
0.16
(4.26)
0.13
S&P Index
Rank
IWF
0.00
85.00
0.94
1.00
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