QuantMyStocks Blog

Educational momentum market commentary — weekly recaps and notable moves across the S&P 500, 400, 600 and NASDAQ-100. Not investment advice.

CAG
HONA
NTST
Index recomposition

Honeywell Aerospace joins S&P 500 as ConAgra exits

Jul 1, 2026

Four index changes take effect late June 2026, headlined by Honeywell Aerospace entering the S&P 500 and ConAgra dropping out.

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CTSH
INSM
Index recomposition

NASDAQ-100 Drops Cognizant and Insmed in June Reshuffle

Jun 25, 2026

Two names exit the NASDAQ-100 effective June 22, 2026 — here's what the recomposition means for index-tracking flows.

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FA
INSM
KW
Index recomposition

Rocket Lab joins NASDAQ-100; Kennedy-Wilson cut from S&P 600

Jun 24, 2026

Rocket Lab and Insmed join the NASDAQ-100, while the S&P 600 swaps Kennedy-Wilson out for First Advantage.

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ALAB
CHTR
CRWV
Index recomposition

NASDAQ-100 Adds Five Names, Drops Five in June Recomposition

Jun 23, 2026

Astera Labs, CoreWeave, Nebius, Rocket Lab, and Teradyne join the NASDAQ-100 on June 22 as Charter, Cognizant, Insmed, Verisk, and Zscaler exit.

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BLKB
BRBR
CDE
Index recomposition

S&P 400 Reshuffles Six Names in June Recomposition

Jun 22, 2026

Roku, Sirius XM, and four others join the S&P MidCap 400 this month; Flex, Masimo, and four more are dropped.

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