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